01-01-2010 00:01:01: ********* Daily User Log start ********** 01-01-2010 23:59:59: ********* Daily User Log end ********** 02-01-2010 00:01:01: ********* Daily User Log start ********** 02-01-2010 23:59:59: ********* Daily User Log end ********** 03-01-2010 00:01:01: ********* Daily User Log start ********** 03-01-2010 23:59:59: ********* Daily User Log end ********** 04-01-2010 00:01:01: ********* Daily User Log start ********** 04-01-2010 23:59:59: ********* Daily User Log end ********** 05-01-2010 00:01:01: ********* Daily User Log start ********** 05-01-2010 23:59:59: ********* Daily User Log end ********** 06-01-2010 00:01:01: ********* Daily User Log start ********** 06-01-2010 23:59:59: ********* Daily User Log end ********** 07-01-2010 00:01:01: ********* Daily User Log start ********** 07-01-2010 23:59:59: ********* Daily User Log end ********** 08-01-2010 00:01:01: ********* Daily User Log start ********** 08-01-2010 13:52:06 user:JP-test: > RJW from GWR loging on. > Is anyone there ? ----------------------------------- 08-01-2010 14:02:54 user:JP-test: > Umberto, Severine or Bernard > You must call me at home - 858-481-9295. I cannot call you since I have no long distance service from my home! > Are you there? ----------------------------------- 08-01-2010 14:03:33 user:JP-test: > hello Richard, we are here! Bernard is installing the phone. we call you soon ----------------------------------- 08-01-2010 14:05:06 user:JP-test: > Okay, meanwhile can you turn the gravity control from "RUN" to "CAL". Let's see if this brings the gravity signal on scale. > Rjw ----------------------------------- 08-01-2010 14:07:11 user:JP-test: > done ----------------------------------- 08-01-2010 14:10:45 user:JP-test: > Which channel is the Gravity ? > Okay, good so this means that the sphere is still levitatied, but that the temperature > is the main problem. > Attache a voltmeter to TP4 on the front panel of the GEP-2 electroncis. What does this test point read? > rjw ----------------------------------- 08-01-2010 14:12:54 user:JP-test: > 6.42 V (temp) ----------------------------------- 08-01-2010 14:12:58 user:JP-test: > SR ----------------------------------- 08-01-2010 14:15:04 user:JP-test: > Are you sure that this is TP4? > rjw > TP4 is a BNC output sort of in the middle of the front panel. It is not the BNC next to the panel meter on the right side. > rjw ----------------------------------- 08-01-2010 14:16:16 user:JP-test: > on our GEP-2 there is no TP4. we have only 1 BNC connector (no label) > SR ----------------------------------- 08-01-2010 14:18:29 user:JP-test: > This is a really old version! > Okay - lets disconnect the temp feedback cable from the head of the gravity meter. > Then we will watch the gravity signal to se how it responds as the system cools (from whaterver temperature it > is at now) to a lower temperature. > rjw ----------------------------------- 08-01-2010 14:19:16 user:JP-test: > yes, our GEP-2 is from 1984 (about) > temp feedback is disconnected! > SR ----------------------------------- 08-01-2010 14:22:55 user:JP-test: > Severine - does the German GEP-2 have a TP4 bnc on it? > rjw ----------------------------------- 08-01-2010 14:23:26 user:JP-test: > yes! > SR ----------------------------------- 08-01-2010 14:25:20 user:JP-test: > Okay, lets disconnect the temp Drive and temp signal from the backof the French GEP-2 and > connect them to the back of the German GEP-2 . Hopefully the GErman temp card will work in > the erman chassis. > rjw ----------------------------------- 08-01-2010 14:25:39 user:JP-test: > ok. we try. > SR ----------------------------------- 08-01-2010 14:29:34 user:JP-test: > So from the two charts, we can see that the gravity signal is approaching null as the > system is cooling. So that's a good sign! > rjw ----------------------------------- 08-01-2010 14:31:47 user:JP-test: > I am going to make a cup of coffee, but will be right back. > rjw ----------------------------------- 08-01-2010 14:32:06 user:JP-test: > lucky you! we have no water at J9! ;-) > SR ----------------------------------- 08-01-2010 14:33:10 user:JP-test: > You have to go to the nearest Boulangerie? > How far away? > rjw ----------------------------------- 08-01-2010 14:34:02 user:JP-test: > it is not far, but in fact we had coffe before coming to J9. > so see you after your coffee break. > we will see how the signals evolve meanwhile > SR ----------------------------------- 08-01-2010 14:34:26 user:JP-test: > Sounds good. > rjw ----------------------------------- 08-01-2010 14:41:16 user:JP-test: > we have reconnected temp feedback on the dewar - > voltage of TP4: 200 mV > it is still increasing. > SR ----------------------------------- 08-01-2010 14:51:17 user:JP-test: > I am back. Lets look at the plots briefly. > I don't know why the Gravity drift changed its direction. > Any ideas? > rjw ----------------------------------- 08-01-2010 14:51:44 user:JP-test: > it is when we have reconnected the temp feedback to the dewar. > SR ----------------------------------- 08-01-2010 14:52:36 user:JP-test: > Disconnect the temp feedback again and then we can talk > rjw ----------------------------------- 08-01-2010 14:52:59 user:JP-test: > done. > SR ----------------------------------- 08-01-2010 14:56:26 user:JP-test: > Let me think! > What I wanted you to do was to connect the German GEP-2 to the Temp Drive and > Temp Signal cables, but to leave the Temp FB disconnected. In this case we can watch TP4 > as the system cools down. > rjw ----------------------------------- 08-01-2010 14:58:26 user:JP-test: > Now we should discuss what I think will be a problem. > If you trace the Temp FB cable and the Gravity FB cable from the head of the > dewar, you will see (I think) tht they go to the same connector at the back of the French GEP-2. > Is this correct? > rjw ----------------------------------- 08-01-2010 15:01:17 user:JP-test: > yes they go to the same connector, subdb9 labelled GRAV TEMP > SR ----------------------------------- 08-01-2010 15:05:39 user:JP-test: > OK, so if you connect the temp FB cable - it is going to the French GEP-2 and very likely they > integrator in the Temp card is at 10 V. So this would heat the system up. > So what we would like to do is to separate the Grav and Temp FB ; and then to put the Temp FB > (pins 1 & 2) to the German GEP-2 and the Grav FB (pins 4 & 5) to the French GEP-2. > Do you have a circuit diagram? Is this possible to do? > rjw ----------------------------------- 08-01-2010 15:06:51 user:JP-test: > yes it is possible. we have to find a db9 connector... > we try. > SR ----------------------------------- 08-01-2010 15:07:21 user:JP-test: > You think that you may have one at J9? > rjw ----------------------------------- 08-01-2010 15:09:31 user:JP-test: > we should be able to find one...we are looking for it. > SR ----------------------------------- 08-01-2010 15:14:18 user:JP-test: > we found a db9. we tell you when the splitting is done. > SR ----------------------------------- 08-01-2010 15:29:31 user:JP-test: > So, we have now cooled below the temperature control point, since there gravity sign > has reversed. > rjw ----------------------------------- 08-01-2010 15:33:03 user:JP-test: > so, we have split. now, temp FB is disconnected from dewar and connected to the German GEP-2, > GRAV FB is connected to French GEP-2. > SR ----------------------------------- 08-01-2010 15:35:32 user:JP-test: > OK, lets look at plots for a moment. > Leave the Temp FB disconnected, and look at TP4 > Then look at the voltages of Temp Bal, and Heater power at the Panel meter bnc to the right. > What do these 3 voltages read? > rjw ----------------------------------- 08-01-2010 15:38:07 user:JP-test: > TP4: -145 mV > it is still decreasing slowly > TEMP BAL: positive at maximum > heater pwr: at maximum also > SR ----------------------------------- 08-01-2010 15:40:02 user:JP-test: > OK, these are all correct - it says that the temp bridge is too cold; so the Temp Bal signal is positive > and wants to turn on the power. > Are there any control knobs on the front of the temperature control part of the panel. For example is there a switch > that says "RUN" or "Strong FB"? > rjw ----------------------------------- 08-01-2010 15:40:59 user:JP-test: > there is a switch with 'RUN' and 'SHORT' > SR ----------------------------------- 08-01-2010 15:44:13 user:JP-test: > OK, the "Short" is meant to be used only when there is gas in the vacuum can; and it will overshoot the control point by addint too much power > too quickly. > So, make sure the switch is set to "RUN". > After this is certain, you can connect the Temp FB cable to the gravity meter. > When you do this watch TP4 with a voltmeter. It should start slowly decreasing towards zero. > If it does not do this slowly, or if you see anything else happening too fast or too scary, disconnect the temp FB again > and we will discuss what you observed. > OK? > rjw ----------------------------------- 08-01-2010 15:45:33 user:JP-test: > ok. let s see... > TP4 is going toward zero... should it reach zero? > SR ----------------------------------- 08-01-2010 15:46:13 user:JP-test: > Yes, the contol point is at zero, but it may overshoot - but not by much. > rjw ----------------------------------- 08-01-2010 15:47:46 user:JP-test: > So, we can see gravity approaching null as the temperature approaches its > control point. > rjw ----------------------------------- 08-01-2010 15:50:01 user:JP-test: > Severine - go ahead and change the Gravity control on the French GEP-2 > from "CAL" to "RUN". > rjw ----------------------------------- 08-01-2010 15:50:38 user:JP-test: > ok, the led "regulating" is on for the first time; > gravity is now on "RUN" > SR ----------------------------------- 08-01-2010 15:51:48 user:JP-test: > The led light being on, means that the Heater power reading is between 2 to 8 V. > So you should see that the Heater Power is now on scale. > Soon, it should be followed by the Temp Balance signal coming on scale. > rjw ----------------------------------- 08-01-2010 15:52:39 user:JP-test: > ok, Heater Power is at 2.715 V now and stable. > it looks good! > SR ----------------------------------- 08-01-2010 15:52:53 user:JP-test: > How about Temp Bal? > rjw ----------------------------------- 08-01-2010 15:53:02 user:JP-test: > it is at zero > SR ----------------------------------- 08-01-2010 15:57:05 user:JP-test: > Looks like there is an offset. > On the Germa GEP-2, there is a Temp Reset push button switch and to the left is a toggle switch that can > be set to +, - or zero (at center position). > What are these set at now? > rjw ----------------------------------- 08-01-2010 15:58:21 user:JP-test: > Temp RESET is 0 0 0 and toggle switch is on + > SR ----------------------------------- 08-01-2010 15:59:31 user:JP-test: > OK, leave the Reset at 000, but also put the toggle swich to the center point at zero. This completly deactivates this part of > the circuit. > rjw ----------------------------------- 08-01-2010 15:59:54 user:JP-test: > done > SR ----------------------------------- 08-01-2010 16:03:11 user:JP-test: > Well, I think the offset is from the tmperature heating up and then recooling. > At least the gravity is still well on scale, so we should be happy! > rjw ----------------------------------- 08-01-2010 16:05:07 user:JP-test: > the GGP2 values seem to be on scale, but not TIDE and MODE. > SR ----------------------------------- 08-01-2010 16:05:46 user:JP-test: > Hmm, where is the Tide signal? > rjw ----------------------------------- 08-01-2010 16:06:11 user:JP-test: > it is channel Grav-2 > SR ----------------------------------- 08-01-2010 16:09:28 user:JP-test: > We have to remember that Temp Bal and Htr Power are now meaningless; since > they are still connected to the output of the French GEP-2. > Looking at the French GEP-2 - what is the voltage of Grav Bal and Grav Sig? > rjw ----------------------------------- 08-01-2010 16:11:40 user:JP-test: > Grav sig: 0.9 V > Grav Bal: around 0 mV > SR ----------------------------------- 08-01-2010 16:13:43 user:JP-test: > How is Grav 2 connected to the Tide output? > Or another question - at the back of the French GEP-2 there are 4 BNCs. They should be labelled > Tide, Mode, Tilt X and Tilt Y. > What is the voltage at the Tide BNC? > rjw ----------------------------------- 08-01-2010 16:22:29 user:JP-test: > Tide BNC (GJ3): 0.94 V > for the connection of TIDE on Grav-2, pins 1 and 9 in GJ5. > TIDE is also connected on the 1-min GWR voltmeter. > SR ----------------------------------- 08-01-2010 16:24:07 user:JP-test: > As we say "I'm scratching my head." You have a similar expression? > rjw ----------------------------------- 08-01-2010 16:26:42 user:JP-test: > =:-) ----------------------------------- 08-01-2010 16:29:10 user:JP-test: > Can we disconnect either of these easily and read the voltages with a multimeter? > We know from the Tide BNC that the filter and GEP-2 card are working correcctly, so > it sounds like the two connections to the voltmeters are somehow shorting out the output of the Tide filter. > rjw ----------------------------------- 08-01-2010 16:30:12 user:JP-test: > The problem is that we are not sure that the GJ3 BNC in th rear of the GEP-2 is TIDE, > since the change of cards... Bernard is looking at this... > SR ----------------------------------- 08-01-2010 16:32:10 user:JP-test: > The schematic says that GJ3 is Tide and that GJ4 is Mode. What does the mode bnc voltage read? > rjw ----------------------------------- 08-01-2010 16:33:41 user:JP-test: > Mode BNC is oscillating between 240 and 280 mV, which seems correct... > SR ----------------------------------- 08-01-2010 16:38:27 user:JP-test: > ok, GJ3 on the rear is TIDE, this one is correct, but the value on the printer it is not correct, and on the DAC also. > So at the output of CJ5 the value of TIDE is not correct. > SR ----------------------------------- 08-01-2010 16:48:00 user:JP-test: > So are you saying that both the Grav-2 1 sec DVM and the 1 min DVM go to pins 1 and 9? > rjw ----------------------------------- 08-01-2010 16:50:32 user:JP-test: > CAn you disconnect the connector at GJ5 and measure the voltage with a multimeter at pins 1 and 9.? > The schematic says that the TIDE bnc and pins 1 and 9 come from separate buffer amplifiers on the Tide/Mode card. > So it is possible that the buffer to 1 & 9 got fried; but that the Tide bnc is okay. > rjw ----------------------------------- 08-01-2010 16:51:16 user:JP-test: > we have measured the voltage at pins 1 and 9 on CJ5 and there is no signal... > so it seems to come from inside GEP-2 > SR ----------------------------------- 08-01-2010 16:59:08 user:JP-test: > So, you have two choices. > 1. Connect the two voltmeters to the Tide bnc; and the Mode bnc to the 1 minute DVM. > 2. You could switch the German Tide/Mode card into the French GEP-2 chassis; > or > 3. You could connect the Grav Sig, Grav Drive and Grav FB from the Dewar head to the German GEP-2. > Maybe there is more than 2 choices! > Some of these choices may also depend on longer term decisions - > Are we just trying to get a short term fix of the temp contol problem; or eventually do we also want to fix other problems like the Y-Balance > problem? The problem with switching functions to the German GEP-2 is that you have to figure out how to reconnect the data systems also so that the > data is recorded properly. > What is your choice? > rjw ----------------------------------- 08-01-2010 17:08:16 user:JP-test: > 1. can we go on like this, using the German GEP-2 temp control card; then can we remove the temp card from the French GEP-2 to make it repair by you? > 2. can we remove the TIDE card from the French GEP-2 and try to repair it by ourselves? > 3. we want to check the signals next Monday; could we connect again with you at the beginning of next week, e.g. Tuesday to try to fix the other pbs? > SR ----------------------------------- 08-01-2010 17:12:57 user:JP-test: > Yes, that would be okay. > 1. you can use the German to temp control and send the French temp card to GWR. However, it may be the temp preamp that is the problem; but if I find > no problem with the temp card, I can send it back with a new preamp to try. > 2. yes you can repair the Tide/Mode card there. It must be that the buffer amp to pins 1 and 9 is not working. > 3. Okay, we can check monday. Do you plan to connect Grav 2 to the Tide bnc; or will you remove this card and just rely on Grav-1? > rjw ----------------------------------- 08-01-2010 17:17:49 user:JP-test: > okay, for points 1 and 2, we will talk with Jacques on Monday morning and tell you. > For the pb of Grav-2, we will try to connect it to Tide bnc, if we find a connector. > It will be a temporary solution and we will see with Jacques on Monday. > In a few minutes you should see signal Tide on Grav-2, Bernard is connecting Tide bnc... > SR ----------------------------------- 08-01-2010 17:25:32 user:JP-test: > Sweet!! > My schedule is - I will be in town Monday and Tuesday. Then in Phoenix Ariz for Weds through Friday. > But I will be available on-line since I am working with Clark Wilson and USGS in Phoenix. > So we should have no problem continuing the discussions. > It is late and Friday so you want to go home now? > rjw ----------------------------------- 08-01-2010 17:27:33 user:JP-test: > If you have time and if it does not take too much time, we may have a look at the Y-balance pb now? > SR ----------------------------------- 08-01-2010 17:31:09 user:JP-test: > This may be time consuming because the levelers (old ones) take so long to feedback and to control. > But let think about it just for a moment. > Is this change from you entering the vault and the temperature changing? > rjw ----------------------------------- 08-01-2010 17:36:01 user:JP-test: > It sort of looks like the tilt Y started working properly at about 16:05. > I'm not exactly sure which o our chages affected it. > Any ideas? > rjw ----------------------------------- 08-01-2010 17:39:38 user:JP-test: > that is the tilt mystery that we have for some times... that is why we wanted to change the tilt cards... > sometimes tilts are working properly, and then suddenly, they do not work any more... > so no idea... > SR ----------------------------------- 08-01-2010 17:40:21 user:JP-test: > Is the problem only on the Tilt Y balance; or does it cmome and go onl both or either axes? > rjw ----------------------------------- 08-01-2010 17:40:39 user:JP-test: > only Tilt Y... > SR ----------------------------------- 08-01-2010 17:43:22 user:JP-test: > Are we now using the German Tilt cards in the French GEP-2; or did we stay with the Frech cards? > rjw ----------------------------------- 08-01-2010 17:43:47 user:JP-test: > We staid with the French one as it did not work with the German cards... > SR ----------------------------------- 08-01-2010 17:47:05 user:JP-test: > Well, we could try to switch the Y-Tilt contol to the German GEP-2, by moving only the Tilt Signal, tilt Drive and Tilt FB cables. > Do you want to try this? > Unfortuantely, I will not be able to see the response; unless Bernard can figure out how to connect a DVM to the Tilt Y Balance. > He could for example, move the Grav-2 DVM from the French Tide output to the front panel bnc of the German GEP. > What do you think? > rjw ----------------------------------- 08-01-2010 17:49:57 user:JP-test: > For tonight, we prefer to stop and we will see next week, > to connect all the signals on DAC. > is it ok for you? > BL,UR,SR ----------------------------------- 08-01-2010 17:51:30 user:JP-test: > Yes, it is time for me to go to work! Ha. > Nice job figuring out how to split up the Temp-Grav feedback. > Also, it will be interesting to see when the Tilt Y fails again. Does this happen very often or may we have to > wait for weeks or months? > rjw ----------------------------------- 08-01-2010 17:52:36 user:JP-test: > The failure is random... > by the way, it is Friday evening aperitive time, > so we wish you a nice week end, and thank you so much for your help. > See you, > BL,UR,SR ----------------------------------- 08-01-2010 17:52:53 user:JP-test: > Au revoir, > Richard ----------------------------------- 08-01-2010 23:59:59: ********* Daily User Log end ********** 09-01-2010 00:01:01: ********* Daily User Log start ********** 09-01-2010 23:59:59: ********* Daily User Log end ********** 10-01-2010 00:01:01: ********* Daily User Log start ********** 10-01-2010 23:59:59: ********* Daily User Log end ********** 11-01-2010 00:01:01: ********* Daily User Log start ********** 11-01-2010 23:59:59: ********* Daily User Log end ********** 12-01-2010 00:01:01: ********* Daily User Log start ********** 12-01-2010 23:59:59: ********* Daily User Log end ********** 13-01-2010 00:01:01: ********* Daily User Log start ********** 13-01-2010 23:59:59: ********* Daily User Log end ********** 14-01-2010 00:01:01: ********* Daily User Log start ********** 14-01-2010 23:59:59: ********* Daily User Log end ********** 15-01-2010 00:01:01: ********* Daily User Log start ********** 15-01-2010 23:59:59: ********* Daily User Log end ********** 16-01-2010 00:01:01: ********* Daily User Log start ********** 16-01-2010 23:59:59: ********* Daily User Log end ********** 17-01-2010 00:01:01: ********* Daily User Log start ********** 17-01-2010 23:59:59: ********* Daily User Log end ********** 18-01-2010 00:01:01: ********* Daily User Log start ********** 18-01-2010 23:59:59: ********* Daily User Log end ********** 19-01-2010 00:01:01: ********* Daily User Log start ********** 19-01-2010 23:59:59: ********* Daily User Log end ********** 20-01-2010 00:01:01: ********* Daily User Log start ********** 20-01-2010 23:59:59: ********* Daily User Log end ********** 21-01-2010 00:01:01: ********* Daily User Log start ********** 21-01-2010 23:59:59: ********* Daily User Log end ********** 22-01-2010 00:01:01: ********* Daily User Log start ********** 22-01-2010 23:59:59: ********* Daily User Log end ********** 23-01-2010 00:01:01: ********* Daily User Log start ********** 23-01-2010 23:59:59: ********* Daily User Log end ********** 24-01-2010 00:01:01: ********* Daily User Log start ********** 24-01-2010 23:59:59: ********* Daily User Log end ********** 25-01-2010 00:01:01: ********* Daily User Log start ********** 25-01-2010 23:59:59: ********* Daily User Log end ********** 26-01-2010 00:01:01: ********* Daily User Log start ********** 26-01-2010 09:39:16 user:Administrator: > Tilt Y-leveling set on UNREG at 9:37 AM ----------------------------------- 26-01-2010 23:59:59: ********* Daily User Log end ********** 27-01-2010 00:01:01: ********* Daily User Log start ********** 27-01-2010 23:59:59: ********* Daily User Log end ********** 28-01-2010 00:01:01: ********* Daily User Log start ********** 28-01-2010 23:59:59: ********* Daily User Log end ********** 29-01-2010 00:01:01: ********* Daily User Log start ********** 29-01-2010 06:23:38 user:Administrator: > RJW loggin on from San Diego ----------------------------------- 29-01-2010 13:53:51 user:Administrator: > This is rjw from san diego. Are you there? ----------------------------------- 29-01-2010 13:55:35 user:Administrator: > hello, Richard. we, Severine and Umberto are here. As there is no electronician with us we cannot do all the procedure you told us; > we will just check by connecting a DVM to the BNC panel, that the pb is coming from the length of the leads. > SR ----------------------------------- 29-01-2010 13:56:35 user:Administrator: > I do not know what "Unreg" is for. Can you switch the front panel back to "Run"? rjw ----------------------------------- 29-01-2010 13:56:55 user:Administrator: > ok, done. > SR ----------------------------------- 29-01-2010 13:57:32 user:Administrator: > Also, does the German GEP have labes Run1 and Run 2? > rjw ----------------------------------- 29-01-2010 13:57:40 user:Administrator: > yes > SR ----------------------------------- 29-01-2010 13:59:36 user:Administrator: > I also cannot remember if I changed both German cards feedback capacitor values. I remember that we > save the components, but I think I changed only the Tilt Y card (and maybe made a note on the schematic). > Can you look at both the German X and Y cards and see if only one was changed? > rjw ----------------------------------- 29-01-2010 14:02:12 user:Administrator: > Is it true that changing from "Unreg" to "Run" did not change either the Tilt Y bal or Power? > rjw ----------------------------------- 29-01-2010 14:05:05 user:Administrator: > Last time when we switched to UNREG, the tilt Y Power changed (but not Y Bal)... > we have measured the BNC output of Tilt-Y Bal in front of our GEP-2 panel and the voltage is also around 0.8V like in the DAS. > SR ----------------------------------- 29-01-2010 14:06:58 user:Administrator: > Can you now disconnect GJ6 from the rear panel of the GEP? This will test the long lead conjecture. > rjw ----------------------------------- 29-01-2010 14:10:00 user:Administrator: > done. > SR ----------------------------------- 29-01-2010 14:12:28 user:Administrator: > Okay, so now what is the Tilt Y balance doing as measured by the front panel DVM? > rjw ----------------------------------- 29-01-2010 14:13:10 user:Administrator: > It`s stable aroun 0.5 V > UR ----------------------------------- 29-01-2010 14:14:46 user:Administrator: > So you think it changed rapidly from 0.8 V to 0.5 and stopped? Perhaps it needs more time since it is > a fairly slow system. This is where the strip chart recorder would give better information than the DVM. > rjw ----------------------------------- 29-01-2010 14:15:36 user:Administrator: > Yes it changed rapidly from 0.8 to 0.5 V, and now the value oscillates around 0.5 V. > SR ----------------------------------- 29-01-2010 14:18:39 user:Administrator: > It looks liek th Tilt Y power is trying to do its job. How fast is the Tilt Y bal oscillating. > The Tilt X still looks good. > rjw ----------------------------------- 29-01-2010 14:20:35 user:Administrator: > indeed the Tilt-Y Bal is stable around 0.54 V, the "oscillation" is just the change of the 3rd digit. > SR ----------------------------------- 29-01-2010 14:21:39 user:Administrator: > Okay. Please go ahead and disconnect GJ5 from the rear panel. Let's see if that does anything significant. > rjw ----------------------------------- 29-01-2010 14:23:08 user:Administrator: > ok. done... > SR ----------------------------------- 29-01-2010 14:26:52 user:Administrator: > I'm confused how the Tilt X and Y power is still being recorded after you have disconnected GJ5. > How has Tilt-Y Bal on the front panel responded? > rjw ----------------------------------- 29-01-2010 14:27:27 user:Administrator: > Tilt-Y Bal on the front panel has not responded... still around 0.5 V > SR ----------------------------------- 29-01-2010 14:30:09 user:Administrator: > Now I see that both the X and Y powers read zero. There was some delay for some reason. > Lets give Tilt-Y balance a little time to respond. > rjw ----------------------------------- 29-01-2010 14:31:29 user:Administrator: > Meanwhile ... Is the German Tilt-Y card inside the German GEP chassis? > rjw ----------------------------------- 29-01-2010 14:31:48 user:Administrator: > Yes, it is. > UR ----------------------------------- 29-01-2010 14:34:17 user:Administrator: > Do the connectors for Tilt Y Signal, Tilt Y Bal and Tilt Y Feedback look the same on both the French and German GEP's rearpanel? > Will it be possible to make a quick switch from the French to the German (for Tilt Y only) and look at the output of the fron panel of the German GEP Tilt Y > balance? > rjw ----------------------------------- 29-01-2010 14:37:01 user:Administrator: > In the rear of French and German GEP-2 there are 2 connectors: Tilt Y Drive and Tilt Y right; they look like the same... > Shall we switch them? > SR ----------------------------------- 29-01-2010 14:37:35 user:Administrator: > Before we try it - is the Tilt-Y Bal sitll at 0.5 V? > rjw ----------------------------------- 29-01-2010 14:38:03 user:Administrator: > Currently it is 0.64 V. > UR ----------------------------------- 29-01-2010 14:39:53 user:Administrator: > OK , lets be more precise. There should be a Tilt Y DRIVE; a Tilt Y SIGNAL and a Tilt Y FEEDBACK. I am prestty sur the Drive and Signal cables are the > same. But is the output for the Tilt Y Feedback the same on the German and French GEPs? > rjw ----------------------------------- 29-01-2010 14:48:31 user:Administrator: > On the French GEP-2, we have 3 cables for Tilt-Y: one is labelled Tilt-Y DRIVE, one is Tilt- Y RIGHT and one is just written TILT-Y (connector with 9 pins - > I forgot the name, it is the same than last time for Temp Bal...); > while on the German GEP-2, there are labels telling: LEVELER Y-Tilt (same connector with 9 pins than on the French one), Tilt-Y DRIVE and Tilt-Y Right, > with same connectors than on the French gep-2 (bnc-like connector). > SR ----------------------------------- 29-01-2010 14:51:10 user:Administrator: > Lousy GWR labelling! > The Yellow cable is the Tilt Y Signal and should be the upper cable going into the preamp. > The Blue cable is the Tilt Y Drive. > But at least the Feedback cables connectors are the same. > So I vote for changing these three ables from the French to the German chassis and seeing what happens. > Do you agree? > rjw ----------------------------------- 29-01-2010 14:51:21 user:Administrator: > ok, lets try... > SR ----------------------------------- 29-01-2010 14:51:51 user:Administrator: > Good - while you are doing that I will take a small break, but will be back. > rjw ----------------------------------- 29-01-2010 15:05:12 user:Administrator: > The output of Tilt-Y Bal from the BNC is around -0.02 V... > SR ----------------------------------- 29-01-2010 15:12:26 user:Administrator: > It is now around 0 V.... > SR ----------------------------------- 29-01-2010 15:18:38 user:Administrator: > Do you think that we could connect also Tilt-X on the German gep-2, > and re-connect GJ6 on the German gep-2 in order to record these signals > on the DAS? In such case, we would only loose the recording of Gravity Balance... > Is it true? or is there any other signals on GJ6? > SR ----------------------------------- 29-01-2010 15:19:39 user:Administrator: > So looking at the German Tilt-Y Balance and Tilt-Y Power - it looks like the Y level system is now working okay? > rjw ----------------------------------- 29-01-2010 15:20:36 user:Administrator: > yes. it looks like > SR ----------------------------------- 29-01-2010 15:23:28 user:Administrator: > So, we could also do the Tilt-X as you suggested above. I don't know however if I changed the feedback capacitors on both German X and Y tilt cards. > I suspect that I did not. However, it might not be that big a deal. > So, you can either check this point - or just go and also change the Tilt X to the German GEP. > I vot to go ahead and change to he German X Tilt. > . > How about you? > rjw ----------------------------------- 29-01-2010 15:25:03 user:Administrator: > ok, I also think we should change to the German GEP-2... we are doing the switch > and we will check the BNC value of the Tilt-X Bal then. > SR ----------------------------------- 29-01-2010 15:25:22 user:Administrator: > Okay ----------------------------------- 29-01-2010 15:33:07 user:Administrator: > Tilt-X Bal is approaching zero... :-) > SR ----------------------------------- 29-01-2010 15:37:54 user:Administrator: > So, if it looks okay - > I agree that you can try reconnecting GJ5 to the rear panel of the German GEP. Leave GJ6 disconnected. > Are you operating in RUN 1 or RUN2 on the German GEP? > rjw ----------------------------------- 29-01-2010 15:39:31 user:Administrator: > GJ5? but gravity is recorded on the French Gep-2... > SR ----------------------------------- 29-01-2010 15:41:18 user:Administrator: > Oh - I see your point. > So you suggest we connect GJ5 to the French GEP to pick up the Tide and Mode? > And we connect GJ6 to the German unit to pick up Tilt X and Y Balance? > rjw ----------------------------------- 29-01-2010 15:41:29 user:Administrator: > yes! > SR ----------------------------------- 29-01-2010 15:41:58 user:Administrator: > Sounds like an idea. Are you reading the circuit diagrams faster than I am? > rjw ----------------------------------- 29-01-2010 15:43:31 user:Administrator: > euh...no... I do not read circuit diagram but I remember (partially) > what is on GJ6 and on GJ5... GGP-2 is on GJ5, right? > SR ----------------------------------- 29-01-2010 15:45:18 user:Administrator: > No, GGP filter comes through its own connector in the back and goes to the high precision DVM (I think). > Any way - go ahead and make the connections with GJ5 going to the French and GJ6 going to the German > and lets see what happens. > rjw ----------------------------------- 29-01-2010 15:46:03 user:Administrator: > done. > SR ----------------------------------- 29-01-2010 15:46:21 user:Administrator: > Tilt on German Gep-2 is on RUN1. > SR ----------------------------------- 29-01-2010 15:51:00 user:Administrator: > THIS IS CONFUSING! > Okay - So we have GJ5 connected to the French GEP-2, which is controlling gravity only. > And we have GJ6 connnected to the German GEP-2 which is controlling Tilt X, Tilt Y and Temp. > Is this correct? > rjw ----------------------------------- 29-01-2010 15:51:06 user:Administrator: > yes. > SR ----------------------------------- 29-01-2010 15:58:34 user:Administrator: > OK. So this means that GJ5 is recording the Tide and Mode filter only from the French GEP-2. > And since we have disconnected the tilt signals, GJ5 is still recording the Tilt X Power and Tilt Y power from the French unit. Since the input is zero, these > values wil likely wander or slowly integrate to 12 v or zero. But they have no meaning any more. > And this means that GJ^ is recording Gravity balance, Grv signal, Tilt X bal, Til Y bal, and Temp balance from the German GEP-2. > Does this make sense to you? > rjw ----------------------------------- 29-01-2010 16:00:03 user:Administrator: > I mean GJ6 where I wrote GJ^ above. > rjw ----------------------------------- 29-01-2010 16:03:09 user:Administrator: > I agree. > SR ----------------------------------- 29-01-2010 16:07:56 user:Administrator: > Do you see a problem? > rjw ----------------------------------- 29-01-2010 16:08:27 user:Administrator: > yes, what are these small oscillations on GGP-2 and Tide (residuals)? > SR ----------------------------------- 29-01-2010 16:10:50 user:Administrator: > Thee are about 2 minute period; or about 30 cycle per hour. > I assume that we have excited the sphere's mode slightly from messing around with the tilt. > rjw ----------------------------------- 29-01-2010 16:11:23 user:Administrator: > yes we came to the same conclusion... as the amplitude is decreasing it should vanish in a while... > SR ----------------------------------- 29-01-2010 16:12:12 user:Administrator: > So .... who wants to ask the question ... should we also change the gravity over to the German GEP-2? > The boss is away! > rjw ----------------------------------- 29-01-2010 16:14:33 user:Administrator: > which gravity? Bal, Signal? TIDE? MODE? > SR ----------------------------------- 29-01-2010 16:16:57 user:Administrator: > I am suggesting that we change to the German Gravity card in the German chassis. Does the German chassis still have its > Gravity card and Tide/Mode filter card inside? > rjw ----------------------------------- 29-01-2010 16:19:52 user:Administrator: > I do not like to change everything at once... > I prefer to wait and see on Monday how the changes we made today evolve... > We do not know yet whether there is a gravity card inside the German chassis. > The most urgent pb concerning the Tilt-Y bal pb seems to have been solved, so > now we prefer to wait. > SR ----------------------------------- 29-01-2010 16:22:57 user:Administrator: > Okay with me. > The main porblem with changing to the German gravity card is - There will be a slight change in calibration of the gravity meter; since the feedback > resistors (although precision to 0.1 > So, we agree we will let it run over the weekend and see if the Til X and Tilt Y balances behave correctly? > rjw ----------------------------------- 29-01-2010 16:23:52 user:Administrator: > yes! > so, thank you for your help and have a nice day and then week end. > SR and UR ----------------------------------- 29-01-2010 16:24:20 user:Administrator: > You also! > I hope it works well. > Bye > rjw ----------------------------------- 29-01-2010 23:59:59: ********* Daily User Log end ********** 30-01-2010 00:01:01: ********* Daily User Log start ********** 30-01-2010 15:55:03 user:Administrator: > In residuals, set gain to 100; set C0 in residual setup to -113 nm/s2 > ...rjw ----------------------------------- 30-01-2010 23:59:59: ********* Daily User Log end ********** 31-01-2010 00:01:01: ********* Daily User Log start ********** 31-01-2010 23:59:59: ********* Daily User Log end ********** 01-02-2010 00:01:01: ********* Daily User Log start ********** 01-02-2010 00:22:52 user:Administrator: > Hi Severine, > Notice that I have adjusted the G1 residual gain to 100 times, so you can easily observe microgal and submicrogal changes. > Everything looks pretty good to me. Let me know if you want change to the German gravity card. > RJW ----------------------------------- 01-02-2010 23:59:59: ********* Daily User Log end ********** 02-02-2010 00:01:01: ********* Daily User Log start ********** 02-02-2010 23:59:59: ********* Daily User Log end ********** 03-02-2010 00:01:01: ********* Daily User Log start ********** 03-02-2010 23:59:59: ********* Daily User Log end ********** 04-02-2010 00:01:01: ********* Daily User Log start ********** 04-02-2010 23:59:59: ********* Daily User Log end ********** 05-02-2010 00:01:01: ********* Daily User Log start ********** 05-02-2010 23:59:59: ********* Daily User Log end ********** 06-02-2010 00:01:01: ********* Daily User Log start ********** 06-02-2010 23:59:59: ********* Daily User Log end ********** 07-02-2010 00:01:01: ********* Daily User Log start ********** 07-02-2010 23:59:59: ********* Daily User Log end ********** 08-02-2010 00:01:01: ********* Daily User Log start ********** 08-02-2010 23:59:59: ********* 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********** 29-03-2010 00:01:01: ********* Daily User Log start ********** 29-03-2010 23:59:59: ********* Daily User Log end ********** 30-03-2010 00:01:01: ********* Daily User Log start ********** 30-03-2010 23:59:59: ********* Daily User Log end ********** 31-03-2010 00:01:01: ********* Daily User Log start ********** 31-03-2010 08:59:29 user:Administrator: > Helium transfer ----------------------------------- 31-03-2010 23:59:59: ********* Daily User Log end ********** 01-04-2010 00:01:01: ********* Daily User Log start ********** 01-04-2010 23:59:59: ********* Daily User Log end ********** 02-04-2010 00:01:01: ********* Daily User Log start ********** 02-04-2010 23:59:59: ********* Daily User Log end ********** 03-04-2010 00:01:01: ********* Daily User Log start ********** 03-04-2010 23:59:59: ********* Daily User Log end ********** 04-04-2010 00:01:01: ********* Daily User Log start ********** 04-04-2010 23:59:59: ********* Daily User Log end ********** 05-04-2010 00:01:01: 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********* Daily User Log start ********** 21-04-2010 13:01:21 user:Administrator: > Hello Richard, are you there? ----------------------------------- 21-04-2010 13:39:06 user:Administrator: > OK I am sort of awake now! rjw ----------------------------------- 21-04-2010 13:39:27 user:Administrator: > hello, your coffee is good? > SR ----------------------------------- 21-04-2010 13:42:10 user:Administrator: > Not yet, I will take a break after we start. > It seems to me not much is left connected to the French GEP2. > Only the gravity drive, signal and feedback. Anything else? ..rjw? ----------------------------------- 21-04-2010 13:43:04 user:Administrator: > before we start, we have noticed some strange oscillations in TIDE, and it seems theyr are in Tilts Bal and Pwr. > Can you have a look at the Tsoft file, here opened, to check? > SR ----------------------------------- 21-04-2010 13:43:45 user:Administrator: > How do I see the Tsoft file? rjw ----------------------------------- 21-04-2010 13:47:56 user:Administrator: > Is that exactly a daily oscillation? rjw ----------------------------------- 21-04-2010 13:49:15 user:Administrator: > yes. but the "tilt-pwr" are not tilt-pwr as they are not recorded (they are on GJ5 which is recorded through the French GEP2). > SR ----------------------------------- 21-04-2010 13:54:30 user:Administrator: > One moment - my feeling is we should complete the cross over to the German system. > Then if there are problems - they should be eisier to think about than with this hybrid system. > ...rjw ----------------------------------- 21-04-2010 13:55:16 user:Administrator: > ok, so lets transfer GGP2, TIDE/MODE to the German GEP2. Shall we have to stop something? > SR ----------------------------------- 21-04-2010 13:57:21 user:Administrator: > Also - the Gravity bridge is still connected to the French system - correct? > If so, you can just disconnect them all and reconnect, but disconnect the feedback first > and reconnect it last. rjw ----------------------------------- 21-04-2010 13:58:48 user:Administrator: > yes, the gravity bridge is still on the French GEP-2. > but how to disconnect the Gravity feedback, is it the DRIVE? > SR ----------------------------------- 21-04-2010 14:02:14 user:Administrator: > Last time, with Bernard, we had split the Tilt-feedback and Gravity-fedback cable for connecting the tilt FB on the German GEP2; so we have first to put > them together again on the same connector. > we tell you when it is done. > SR ----------------------------------- 21-04-2010 14:05:11 user:Administrator: > okay, I will wait and now make coffee! > ...rjw ----------------------------------- 21-04-2010 14:27:31 user:Administrator: > that is done. we have disconnected from the French GEP2 and reconnected everything to the German GEP2 > SR ----------------------------------- 21-04-2010 14:35:45 user:Administrator: > So, does the gravity signal return to its previous value? rjw ----------------------------------- 21-04-2010 14:39:22 user:Administrator: > It does not look so good. How are GJ5 and GJ6 hooked up? ...rjw ----------------------------------- 21-04-2010 14:41:35 user:Administrator: > Or peryhesa ps first - > Looking at the analog panel meter of the German GEP2 > Check the temp balance and power > the tilts X and Y balance and powers > and the gravity balance and feedback voltages. > Do these all look normal? ..rjw ----------------------------------- 21-04-2010 14:46:07 user:Administrator: > the temp bal is not yet correct. the tilts bal are correct, around -0.1V. the grav bal is 2.59V, grav sig is 13.69V > SR ----------------------------------- 21-04-2010 14:49:07 user:Administrator: > It looks like this change had a big effect on the temp balance! Look how much smaller > the temp heater voltage is. It must be cooling to a lower control value. > ...rjw ----------------------------------- 21-04-2010 14:52:13 user:Administrator: > I think that the gravity and temp feedback is not wired properly. Disconnect it for now while we think about it. > ...rjw ----------------------------------- 21-04-2010 14:53:13 user:Administrator: > ok. done > SR ----------------------------------- 21-04-2010 14:56:26 user:Administrator: > Its confusing with GJ5 and GJ6 split between the two chassis. Can we put them bothto the German unit now > and check that the tilt system is still working. > Or lets look at the GEP2 panel meter on the german system. > What are the tilt x and y balances reading? ..rjw ----------------------------------- 21-04-2010 14:57:35 user:Administrator: > CG5 and GJ6 are already both on the German GEP-2; else you would not see the data records. However on the German GEP2 there is a GJ7 that we do > not have on the French one. > SR ----------------------------------- 21-04-2010 14:59:18 user:Administrator: > But - the values on the status page do not make sense. > The balances should be close to zero and the eater powers around 5 to 6 volts. > Are thiese also incorrect on the GEP2 analg panel meter? ..rjw ----------------------------------- 21-04-2010 15:01:58 user:Administrator: > on the GEP2 panel, the analog values (volatges) are also incorrect; > indeed, the values of the pwr (tilt and heater) are different on the panel and on the DAS!! > SR ----------------------------------- 21-04-2010 15:03:45 user:Administrator: > So, lets go back somewhat becasue it seems difficult to understand how simply > moving the gravity drive, signal and feedback could cause so many problems! > I assume that you disconnected these cables from the back of the French unit and reconnected to > the German unit? Is this correct? ...rjw ----------------------------------- 21-04-2010 15:03:54 user:Administrator: > yes! > SR ----------------------------------- 21-04-2010 15:05:39 user:Administrator: > So, lets disconnect them again frm the back of the german unit and see if we can restore > the operation of the til functions. Also disconnect the feedback connector - whichnow has both the > temp and gravity feedback on that connector. > ..rjw ----------------------------------- 21-04-2010 15:05:59 user:Administrator: > the FB cable is already disconnected (you asked before). > SR ----------------------------------- 21-04-2010 15:07:04 user:Administrator: > Are the gravity signal and drive also disconnected now? ..rjw ----------------------------------- 21-04-2010 15:07:30 user:Administrator: > no... but what was the GJ7 meant to on the German unit? > SR ----------------------------------- 21-04-2010 15:08:22 user:Administrator: > I am not sure since I don't have the schematic home with me. > It is a much larger connector - than GJ5 and GJ6? rjw ----------------------------------- 21-04-2010 15:08:36 user:Administrator: > no it is same size connector... > SR ----------------------------------- 21-04-2010 15:09:41 user:Administrator: > Hmm - I don't know - but it would only be for taking data out to the DDAS and > should not affect the basic operating of the circuits. rjw ----------------------------------- 21-04-2010 15:14:03 user:Administrator: > the heater pwr and tilts-pwr were not recorded before... so we do not know which values they should have... > SR ----------------------------------- 21-04-2010 15:14:42 user:Administrator: > But what are the values now, when you look at the panel meter with a dvm? ..rjw ----------------------------------- 21-04-2010 15:17:38 user:Administrator: > heater pwr is 13.65V, tilt X pwr is 2.75V, Y pwr is 4.12V. temp pwr is still 8.9v(even after disconecting the FB) > SR ----------------------------------- 21-04-2010 15:18:15 user:Administrator: > So, the tilt x balance and tilt y bal are fluctuating around zero? rjw ----------------------------------- 21-04-2010 15:18:53 user:Administrator: > no, around -0.1V, but it was already the case since the first switch we did some monthes ago... > SR ----------------------------------- 21-04-2010 15:20:10 user:Administrator: > OK - so the tilt systems are still working - we will say "normally". > The German unit has a TP4 coax connector somewhere by the Temp control knobs? ...rjw ----------------------------------- 21-04-2010 15:20:29 user:Administrator: > yes > SR ----------------------------------- 21-04-2010 15:20:55 user:Administrator: > Connect a dvm to that and see what the voltage is. ...rjw ----------------------------------- 21-04-2010 15:25:20 user:Administrator: > the TP4 value get from 2mV to 20 mV in 1 min, when we disconected the FB temp/grav. it is still increasing... > SR ----------------------------------- 21-04-2010 15:28:11 user:Administrator: > OK - disconnect the gravity feedback from the head of the gravity meter. > But leave the FB cable connected to the head. > Then plug in the geedback connector to the back of the GEP-2. > This should bring the temperature back into feedback if the wiring was the same as last time. > Meanwhile, I have to o to GWR since I got a call from the police about the alarm going off. > So onec I am there (in about 20 minutes) I will reestablish connection with you. OK ? rjw ----------------------------------- 21-04-2010 15:28:33 user:Administrator: > ok ----------------------------------- 21-04-2010 15:51:50 user:Administrator: > I hope nobody stole you an SG!! > when we remove the CJ5, the temp comes back to correct values, and the regulating is on. So it seems there is an incompatiblity between our CJ5 and > the German one.... > SR ----------------------------------- 21-04-2010 16:00:26 user:Administrator: > Hello - I am back now at GWR - no burglers are present, just a faulse alarm! > ...rjw ----------------------------------- 21-04-2010 16:01:12 user:Administrator: > luckily! but who would steal an SG? ;-) it is not discrete... > SR ----------------------------------- 21-04-2010 16:01:37 user:Administrator: > They probably want one in Iran! ..rjw ----------------------------------- 21-04-2010 16:04:22 user:Administrator: > it seems we have an incompatibility betwen our GJ5 and the German one... as when GJ5 and grav FB are removed, temp bal is good (around 0.3V). when > grav FB is connected but not GJ5, the temp bal value is less good and increase to 0.9V, and when GJ5 is connected, the value is aberrant. > SR ----------------------------------- 21-04-2010 16:09:41 user:Administrator: > OK, I have the schematics in front of me. Anyway - GJ5 , GJ6 and GJ7 are only for reading out data - so they should not interfere > unless there is some serious ground loop. > But just in case, lets start by disconnecting both GJ5 and GJ6 and jsut look at the analog mete to see what is happening. > /so are GJ5 and GJ6 disconnected now? ..rjw ----------------------------------- 21-04-2010 16:13:59 user:Administrator: > so, after disconnecting CJ5 and CJ6, the values are: > temp bal around -0.1 V, heater pwr 2.73V, X tilt bal 0 !!! Y tilt bal 0, X tilt Pwr 2.77 V, Y tilt Pwr 4.14 V... > there is no grav as the grav FB is disconnected. > it seems that disconnecting CJ6 also has an impact!!! as now the tilts bal are really 0... > SR ----------------------------------- 21-04-2010 16:20:20 user:Administrator: > OK - let's call this progress! > Now, connect only the grav drive and signal and turn the grav panel switch to setup and > the BD = 4. Then look at the Grav Bal on the panel meter and read the value. rjw ----------------------------------- 21-04-2010 16:22:05 user:Administrator: > the grav bal value is around 130 mV... > SR ----------------------------------- 21-04-2010 16:22:35 user:Administrator: > OK , turn the BD up to 7 and see what it is. ..rjw ----------------------------------- 21-04-2010 16:23:24 user:Administrator: > grav Bal = 3.20 V > SR ----------------------------------- 21-04-2010 16:24:05 user:Administrator: > Perfect! So now plug in the grav FB cable (should be no change when this is cone). ..rjw ----------------------------------- 21-04-2010 16:24:49 user:Administrator: > ok, it does not change... > SR ----------------------------------- 21-04-2010 16:25:23 user:Administrator: > Ok, turn the grav control from set-up to run. This should move the grav bal to zero ...rjw ----------------------------------- 21-04-2010 16:25:57 user:Administrator: > ok grav bal is at 0. > SR ----------------------------------- 21-04-2010 16:26:16 user:Administrator: > And grav signal is at ? ..rjw ----------------------------------- 21-04-2010 16:27:04 user:Administrator: > ~1.4V > SR ----------------------------------- 21-04-2010 16:28:39 user:Administrator: > OK - so all the systems are working now - temp, tilts and gravity. > Now we have to figure how to get the data to the data system without causing problems. > Ideally this would be the time to move the DDAS into the gravity room and to make all the connections short. > Is it possible to do this now? ...rjw ----------------------------------- 21-04-2010 16:29:09 user:Administrator: > mmmmmmmmmmmmmmmmmmmmmmmmmmmm > JH,BL,UR,SR ----------------------------------- 21-04-2010 16:30:08 user:Administrator: > I didn't think so, but had to ask! > So remind me - how do we get the GGP signal to the DDAS? ..rjw ----------------------------------- 21-04-2010 16:30:18 user:Administrator: > with GJ5... > SR ----------------------------------- 21-04-2010 16:32:20 user:Administrator: > I don't think so. GJ5 has the tide, mode, baro (not used) , tilt x, tilt y, Grav lowpass, and heater power. > There should be an additional connector on the back panel just for the GGP signal - an isolated twinax connector? ...rjw ----------------------------------- 21-04-2010 16:33:10 user:Administrator: > not in our case, the GGP is connected on GJ5 (pins 6/14)... > SR ----------------------------------- 21-04-2010 16:35:25 user:Administrator: > OK - so we have to make some changes since the German GEP will not be wired that way. > On the rear panel ther is now a Triax cable labelled HR Grav (High resolution) grav. Do you see it? ...rjw ----------------------------------- 21-04-2010 16:35:47 user:Administrator: > yes, and there is also one, same connector, without any label. > SR ----------------------------------- 21-04-2010 16:36:31 user:Administrator: > Do you have a connector and cable that will fit this connector? ...rjw ----------------------------------- 21-04-2010 16:36:41 user:Administrator: > no... > SR ----------------------------------- 21-04-2010 16:37:16 user:Administrator: > Can you read the voltage with a DVM to see if it is about right for the Grav Signal? ..rjw ----------------------------------- 21-04-2010 16:38:38 user:Administrator: > yes, both connectors are Grav signal. SR ----------------------------------- 21-04-2010 16:43:40 user:Administrator: > So, do you have Eric documentation for hooking the GEP-2 to the data system? I just found a document > dated 3/25/2008. ...rjw ----------------------------------- 21-04-2010 16:45:16 user:Administrator: > which one more precisely? sr ----------------------------------- 21-04-2010 16:46:36 user:Administrator: > I shows a list of GWR Channel #, the Neumonic (Name) , the Description (e.g. GGP2 gravity output) then Range, then source (e.g. GJ5 pin 6/14) the > Destination, then notes. ...rjw ----------------------------------- 21-04-2010 16:46:45 user:Administrator: > yes. sr ----------------------------------- 21-04-2010 16:47:16 user:Administrator: > So as you said the first line shows that the GGP comes from GJ5 6/14. ...rjw ----------------------------------- 21-04-2010 16:47:24 user:Administrator: > yes! ----------------------------------- 21-04-2010 16:56:34 user:Administrator: > So we have many choices - but first we should start with the basics of the German GEP-2. > I suggtest that we first understand where all the signal come out of it and that you check this versus the front > panel meter. This will also answer your question re the connector GJ7. > So - I believe the following to be true - on the German GEP2! > GJ5 pins 1,9 are tide filter (the same as GJ3) > GJ5 pins 2,10 are Mode (the same as GJ4) - this can be reet to zero with toggle switch on front panel near gravity control. > GJ5 pin 3,11 used to be barometer but are no longer used. > GJ5 pins 4, 12 are Tilt X > GJ5 pins 5,13 are Tilt Y - now these are interesting because the Tilt X and Y would either read the Tilt balance or the Tilt power depending if the > Tilt feedback was in Run 1 or run 2. So you ned to check this out. > GJ5 pins 6,14 are Grav LP filter and > GJ > Do these all check out versu the analog panel meter? ...rjw ----------------------------------- 21-04-2010 16:58:22 user:Administrator: > tilt FB is on Run1. In our case, we have the same connecting pins. > shall we connect GJ5? > SR ----------------------------------- 21-04-2010 17:03:10 user:Administrator: > Before you do this - > GJ6 pins 1, 9 are Grav Balance, > GJ6 2,10 are Grav signal > GJ6 3, 11 arre Tilt y bal > GJ6 4, 12 is tilt x bal > GJ6 5, 13 is temp bal > GJ6 6,14 is barometer raw (not used) and the rest are not used. > In addition > GJ7 pins 1, 9 are not important but > GJ7 2, 10 are the Tiltx power > GJ7 3, 10 are Tilt y power. > and the rest are not used. So I think you can now record (after rewiring) both tilt balanc and power. ...rjw ----------------------------------- 21-04-2010 17:04:20 user:Administrator: > in our case, tilt-x bal and tilt-y bal are inversed; and temp bal is on pins 5,14.SR ----------------------------------- 21-04-2010 17:05:45 user:Administrator: > Yes, the tilt x and y have always been intersed (and never corected on the documentation!) > The temp balance ground is a surprise! > So do you have a good tabel of all these connections? and have you verified that they agree with the panel meter? > ...rjw ----------------------------------- 21-04-2010 17:07:33 user:Administrator: > sorry, temp bal is on 5/13.. error in the doc.. as 6/14 is a baro, temp bal should be 5/13... ----------------------------------- 21-04-2010 17:15:26 user:Administrator: > Yes, I see the error on my document also. This is why you should check the voltages pin by pin to make sure. > It seems some of our old problems were from ground loops; but mayebe also because of the complexity > of wiring up 2 data systems at J9. ...rjw ----------------------------------- 21-04-2010 17:19:45 user:Administrator: > we have checked the voltages pin to pin and it seems correct... there is indeed ground loop pbs (particularly when lonking at electronic noise, we see > some strange oscillations) but we should have more or less correct signal. before, with GJ6 it was nearly correct... > SR ----------------------------------- 21-04-2010 17:22:54 user:Administrator: > OK - lets connect GJ5 first. According to Erics table this should give us Grav tide, Tilt x power, Tilt y poer > and heater power and gravitymode. Do you agree? rjw ----------------------------------- 21-04-2010 17:27:55 user:Administrator: > yes, but it seems the pb is coming from the connector itself (it is an old plug).. when Bernard touched it values were correct, > and when he touched it again, values of temp bal went bad....now Bernard has changed the connector (which was splitting toward > the 2nd DAS) and the values seem correct at the front of the panel!!! the situation seems to clarify...SR ----------------------------------- 21-04-2010 17:29:21 user:Administrator: > Switch the tiltmeter controls from Run 1 to Run 2 and lets see what happens to the valsue > on the dDAS. rjw ----------------------------------- 21-04-2010 17:33:28 user:Administrator: > On GJ7do pins 2, 10 and 3, 11 read the tilt x and y powers correctly? rjw ----------------------------------- 21-04-2010 17:35:52 user:Administrator: > temp bal is still varying strangely: it is at zero, and after a while it is going away, then back towards zero... strange. the temp system seems to work > irregularly...SR ----------------------------------- 21-04-2010 17:36:41 user:Administrator: > Does this problem go away with GJ5 disconnected? rjw ----------------------------------- 21-04-2010 17:37:37 user:Administrator: > yes, when GJ5 is disconn, Temp Bal stays close to zero. SR ----------------------------------- 21-04-2010 17:43:27 user:Administrator: > So, it must be that connecting pins 7,15 of GJ5 and sampling it with the multiplexer is causing a problem. > Everyting else on GJ5 does not involve temperature. > How does Bernard keep track of the polarity of the temp fb - but this should not matter if this cirucit is floating! > Can Bernard pull pins 7, 15 out of the GJ5 connector and then attach it? ...rjw ----------------------------------- 21-04-2010 17:46:06 user:Administrator: > Or, I suppose he coul disconnect the pins at the multplexer instead. rjw ----------------------------------- 21-04-2010 17:53:08 user:Administrator: > every time we connect GJ5 the temp bal goes away to more than 12 v > when we disconnect it it returns to normal around 0 > we have to stop for today > shall we reinstall as it was before? > and later we have to think more about the procedure? JH ----------------------------------- 21-04-2010 17:55:50 user:Administrator: > Yes, also it would be best to bind a way to connect to the GGP sicgnal from the HR connector on the back > rater than using the GJ connector. > Hopefully it will go back to "normal" when yu change back. ...rjw ----------------------------------- 21-04-2010 17:56:22 user:Administrator: > we try and tell you....jh ----------------------------------- 21-04-2010 17:56:57 user:Administrator: > Hi Jacques - how is the volcanic ash there? Can you see the sun or stars? rjw ----------------------------------- 21-04-2010 18:09:28 user:Administrator: > Since the ash dust the weather is wonderful and the sky blue as never! JH ----------------------------------- 21-04-2010 18:10:00 user:Administrator: > Was that a typo? The sky as blue as Never? rjw ----------------------------------- 21-04-2010 18:10:57 user:Administrator: > I mean we have the feeling that planes were causing more pollution than the volcanic pb!jh ----------------------------------- 21-04-2010 18:11:35 user:Administrator: > That is really very funny! I cannot wait to tell my wife your observation. rjw ----------------------------------- 21-04-2010 18:13:48 user:Administrator: > Richard we have to leave to bring Bernard to the train station for the last chance today to go home.... > we have reconnected as it was and it seems ok > we will come back to you to see what can be done to make progress thanks a ot for your patience with > this old French system which obviously has to be replaced! jh ----------------------------------- 21-04-2010 18:17:07 user:Administrator: > Ok - it looks okay? ..rjw ----------------------------------- 21-04-2010 18:17:33 user:Administrator: > hello from all of us > we recontact you tomorrow > jh ----------------------------------- 21-04-2010 18:17:48 user:Administrator: > bye .. rjw ----------------------------------- 21-04-2010 23:59:59: ********* Daily User Log end ********** 22-04-2010 00:01:01: ********* Daily User Log start ********** 22-04-2010 23:59:59: ********* Daily User Log end ********** 23-04-2010 00:01:01: ********* Daily User Log start ********** 23-04-2010 23:59:59: ********* Daily User Log end ********** 24-04-2010 00:01:01: ********* Daily User Log start ********** 24-04-2010 23:59:59: ********* Daily User Log end ********** 25-04-2010 00:01:01: ********* Daily User Log start ********** 25-04-2010 23:59:59: ********* Daily User Log end ********** 26-04-2010 00:01:01: ********* Daily User Log start ********** 26-04-2010 23:59:59: ********* Daily User Log end ********** 27-04-2010 00:01:01: ********* Daily User Log start ********** 27-04-2010 23:59:59: ********* Daily User Log end ********** 28-04-2010 00:01:01: ********* Daily User Log start ********** 28-04-2010 17:23:51 user:Administrator: > rjw from GWR checking in. ----------------------------------- 28-04-2010 17:35:44 user:Administrator: > Adjust C0 on residuals = -322 to set residual close to zero on plots (Residuals and Rsdls F60) > ...rjw ----------------------------------- 28-04-2010 23:59:59: ********* Daily User Log end ********** 29-04-2010 00:01:01: ********* Daily User Log start ********** 29-04-2010 23:59:59: ********* Daily User Log end ********** 30-04-2010 00:01:01: ********* Daily User Log start ********** 30-04-2010 23:59:59: ********* Daily User Log end ********** 01-05-2010 00:01:01: ********* Daily User Log start ********** 01-05-2010 23:59:59: ********* Daily User Log end ********** 02-05-2010 00:01:01: ********* Daily User Log start ********** 02-05-2010 23:59:59: ********* Daily User Log end ********** 03-05-2010 00:01:01: ********* Daily User Log start ********** 03-05-2010 23:59:59: ********* Daily User Log end ********** 04-05-2010 00:01:01: ********* Daily User Log start ********** 04-05-2010 23:59:59: ********* Daily User Log end ********** 05-05-2010 00:01:01: ********* Daily User Log start ********** 05-05-2010 23:59:59: ********* Daily User Log end ********** 06-05-2010 00:01:01: ********* Daily User Log start ********** 06-05-2010 12:27:30 user:Administrator: > rjw from Vienna ----------------------------------- 06-05-2010 23:59:59: ********* Daily User Log end ********** 07-05-2010 00:01:01: ********* Daily User Log start ********** 07-05-2010 23:59:59: ********* Daily User Log end ********** 08-05-2010 00:01:01: ********* Daily User Log start ********** 08-05-2010 23:59:59: ********* Daily User Log end ********** 09-05-2010 00:01:01: ********* Daily User Log start ********** 09-05-2010 23:59:59: ********* Daily User Log end ********** 10-05-2010 00:01:01: ********* Daily User Log start ********** 10-05-2010 10:57:31 user:Administrator: > rjw checking from Yebes - connection looks okay. > Jacques - we can schedule a meeting. ----------------------------------- 10-05-2010 23:59:59: ********* Daily User Log end ********** 11-05-2010 00:01:01: ********* Daily User Log start ********** 11-05-2010 08:11:12 user:JP-test: > Hi - anyone there? This is Richard from GWR (presently at Yebes) > ...rjw ----------------------------------- 11-05-2010 08:11:32 user:JP-test: > hello Richard, here we are! sr ----------------------------------- 11-05-2010 08:14:50 user:JP-test: > So, according to my email sent to Jacques et al on 5/6/10 - we think there is a problem since we > did not reset the German X and Y reset values to agree with the French ones. And it would be a good idea > anyway to check the tilt minimum since we have made major changes to the electronics. > So, first I suggest we put the German GEP-2 Tilt X and Tilt Y in Setup and see what the equilibrium powers are. > Second we should write down the French reset numbers and the German reset numbers. > OK? > rjw ----------------------------------- 11-05-2010 08:15:20 user:JP-test: > yes. we are doing it... SR ----------------------------------- 11-05-2010 08:18:27 user:JP-test: > Hi Serevine - I just got a copy of the analysis you did with BFO and the summary of all the SG noise analysis. > Its good to see some improvemnt in noise on the SG with the heavier sphere! > Meanwhile, I have no data yet on the iGrav. And the noise quoted is the expected noise in the band that you > look at for long period seismic signals. (it hopefully will be the same as the OSG). > rjw ----------------------------------- 11-05-2010 08:21:45 user:JP-test: > ok! we wil see in Montpellier how it will be ;-) it is scheduled to be ready for next Fall?SR ----------------------------------- 11-05-2010 08:25:10 user:JP-test: > I sent you an email just now. Maybe I have some preliminary data earlier than the IAG meeting. rjw ----------------------------------- 11-05-2010 08:28:50 user:JP-test: > What are the French and German reset values? rjw ----------------------------------- 11-05-2010 08:29:46 user:JP-test: > German values: X: +363 > Y: - 249 > French values > X: +287 > Y: - 208 > SR ----------------------------------- 11-05-2010 08:30:27 user:JP-test: > In Volts, X Pwr is now 5.22V, Y Pwr is 5.12 V on German GEP-2 > SR ----------------------------------- 11-05-2010 08:30:50 user:JP-test: > X Bal -12.75 V > Y Bal -3.69 V > SR ----------------------------------- 11-05-2010 08:32:15 user:JP-test: > So, the powers look very normal for the midpoint of the thermal levelers. > I assume the X and Y Bal are with the BD = 7. And what are the French and German X and Y Reset values? ...rjw ----------------------------------- 11-05-2010 08:32:49 user:JP-test: > Marta says hello! rjw ----------------------------------- 11-05-2010 08:33:15 user:JP-test: > Buenos Dias Marta! > sr, bl, ur ----------------------------------- 11-05-2010 08:34:12 user:JP-test: > What are the Reset Values? It is not the first values we gave you? ----------------------------------- 11-05-2010 08:34:36 user:JP-test: > Sorry! My bad! I did not see your reply. rjw ----------------------------------- 11-05-2010 08:38:09 user:JP-test: > Hmm, it is surprising the X Bal is so much further off than the Y Bal. > OK, please change the German reset values to agree with the French and lwts ee what happens to the X and y Bal signals. > ..rjw ----------------------------------- 11-05-2010 08:38:15 user:JP-test: > ok! SR ----------------------------------- 11-05-2010 08:42:39 user:JP-test: > Why is the X power read offscale? > Turn the X and Y Bridge Drives from 7 to 5 so we can see how far off they are. rjw ----------------------------------- 11-05-2010 08:43:00 user:JP-test: > ok SR ----------------------------------- 11-05-2010 08:44:56 user:JP-test: > Did you leave the X and Y conrol in the Set Up positions? It looks like the system is feeding back on the tilt. rjw ----------------------------------- 11-05-2010 08:45:56 user:JP-test: > yes, they are on Setup.. BUT be aware that the Tilt X Bal and Y Bal are inversed on the acquisition (GJ6) wrt to the GEP-2... > So here on the screen X-Bal is indeed Y-Bal... > SR ----------------------------------- 11-05-2010 08:49:44 user:JP-test: > Earlier, you said that with the X and y tilts in Set-up that the X and Y power stabilized at 5.2 and 5.1 volts. > i dont see this on the data; and don't understand why they are not still at these values if we are still in set up. ???????? > rjw ----------------------------------- 11-05-2010 08:53:18 user:JP-test: > we do not understand... the front values of the Pwr are around 5V... for the Bal the values are correct... pb in GJ5? SR ----------------------------------- 11-05-2010 08:57:05 user:JP-test: > I don't have the GEP-2 documentation with me. But we thought that GJ5 was working except for the heater power. > Disconnect the thermal levelers at the base of the thermal leveler or at the back of the GEP-2; and return the Tilt X and Y feedback to Run (is there Run 1 > and Run 2 position on the tilts?) > Then lets see if in Run (1 or 2) that the values are recorded correctly though GJ5. ..rjw ----------------------------------- 11-05-2010 08:58:33 user:JP-test: > ok.. done (Run 2) SR ----------------------------------- 11-05-2010 09:00:46 user:JP-test: > So, this did not help - since the values still do not agree with the GEP-2 panel. Is this correct? rjw ----------------------------------- 11-05-2010 09:02:24 user:JP-test: > Values are different... but the levelers are disconnected... we do not understand...SR ----------------------------------- 11-05-2010 09:04:45 user:JP-test: > With the levelers disconnected; you are by definition "out of feedback" or "in setup" since you cannot feedback. So I am curious if operating > in Run but with the levels disconnected made the GEP panel meter and tiltmetes agree in voltag values or not,. rjw ----------------------------------- 11-05-2010 09:06:30 user:JP-test: > It looks like they might be correct now. I see the power values integrating up to 10 volts and the X and Y values starting to rise > as the thermal levelers cool in temperature. rjw ----------------------------------- 11-05-2010 09:13:10 user:JP-test: > What is happening? rjw ----------------------------------- 11-05-2010 09:13:52 user:JP-test: > We are talking about Crepes, Pizzas, Tartes flambees.... ;-) ----------------------------------- 11-05-2010 09:14:23 user:JP-test: > Is it lunch time? I am on Paris time. rjw ----------------------------------- 11-05-2010 09:14:58 user:JP-test: > no, it is not lunch time, but for you (in Spain) it should be Merienda Time! ----------------------------------- 11-05-2010 09:15:18 user:JP-test: > I am at 11:15 local time. rjw ----------------------------------- 11-05-2010 09:15:36 user:JP-test: > yes! ask Marta ;-) .... ----------------------------------- 11-05-2010 09:16:01 user:JP-test: > So what is the next step? rjw ----------------------------------- 11-05-2010 09:16:55 user:JP-test: > shall we reconnect the levelers? the Pwr from front panel are stabilized around 13V > SR ----------------------------------- 11-05-2010 09:18:19 user:JP-test: > you did not reply. Do the values at the front panel and on the data system agree now; with the x and y > tilts in run and with the thermal levelers disconnected. Sounds like you were distracted by food. rjw ----------------------------------- 11-05-2010 09:20:11 user:JP-test: > yes, the Tilt Bal agree on the DAS and on the front panel (X and Y being inversed on the DAS)... > SR ----------------------------------- 11-05-2010 09:20:42 user:JP-test: > I need a 15 minute break. Be right back. > rjw ----------------------------------- 11-05-2010 09:50:51 user:JP-test: > So, I am trying to determine why the DDAS reads correctly sometimes and then incorrectly sometimes. > Is putting the X and y in Setup enought to cause a problem? > So now change the X adn Y to Set up from Run2 and see if the tilt balances are still reading correctly. ..rjw ----------------------------------- 11-05-2010 09:54:17 user:JP-test: > the Bal read correctly; and Pwr are still out of range. > SR ----------------------------------- 11-05-2010 09:56:58 user:JP-test: > But look at the powers! They are now on scale just from changing from Run 2 to Set up? > I dont understand this ? rjw ----------------------------------- 11-05-2010 09:58:29 user:JP-test: > on the BNC in front panel, we are still out of scale (13V).... and here on the DDAS it went to smaller values. SR ----------------------------------- 11-05-2010 10:00:47 user:JP-test: > So, it is very dangerous to connect the GJ5 connector. We do not understand its behavoir. I would say that all of its connections > will need to be optically isolated. rjw. ----------------------------------- 11-05-2010 10:02:05 user:JP-test: > Why is it dangerous to connect GJ5 - it is connected- and it is working for all signals, except heater pwr... SR ----------------------------------- 11-05-2010 10:02:57 user:JP-test: > HUH? Didn't we just show that it does not give the correct values when the X and Y Reset switch is in SetUp? ..rjw ----------------------------------- 11-05-2010 10:04:02 user:JP-test: > yes, except this difference in SetUp, in Run it seems to work... the Bridge drive has no impact on this? > SR ----------------------------------- 11-05-2010 10:10:28 user:JP-test: > No the bridge drive only gets the signals on scale. By it being "dangerous" I simply mean that we do not know where the currents are flowing. It seems to > me that the problem with GJ5 may be broader than just a problem with the heater power. Well I guess we can discuss later what to do about it. > Ha! It is clear now! In SetUp the filter output is switched from the Xand Y power to the X and Y Balance! > I think if you look at the GEP-2 schematic you will see this is true. > So, go ahead now and reconnet to thermal levelers. .,.rjw ----------------------------------- 11-05-2010 10:10:57 user:JP-test: > ok! we prefer that!... done, the levelers are connected... SR ----------------------------------- 11-05-2010 10:12:28 user:JP-test: > OK, so if I am correct the XPower will follow the XBal and similar for the Ypower. > But as you already observed on the GEP panel meter, the X and Y Power will settle at about 5 V. ...rjw ----------------------------------- 11-05-2010 10:17:02 user:JP-test: > Okay, so lets go ahead and correct the X and Y Reset values to agree with the French Gep2 ...rjw ----------------------------------- 11-05-2010 10:17:42 user:JP-test: > the X and Y reset values are already the French ones... we are on SetUp, and Bridge Drive 5... SR ----------------------------------- 11-05-2010 10:18:01 user:JP-test: > When did we change to the French reset values? ...rjw ----------------------------------- 11-05-2010 10:24:23 user:JP-test: > OK - then leave them at these values and we will see how close the X and Y Balances are at the thermal leveler midpoint. > Note: we will be offscale if we turn theBD from 5 to 7 since this is a factor of 10 X. > So, after the X and y powers stabilize; you should check the gravimeter tilt; first doing Forward Back in 4 mil increments and then Left- > right in +2, -2 mil increaments. Do you remember how to do this? rjw ----------------------------------- 11-05-2010 10:25:21 user:JP-test: > ok, so we are waiting for the Pwr to be stabilized...SR ----------------------------------- 11-05-2010 10:26:39 user:JP-test: > The tilt and gravity seem to have stabilized. So the power must be pretty close to stable also. rjw ----------------------------------- 11-05-2010 10:33:08 user:JP-test: > Please enter the LMic and RMic values as you do the tilt process. Then you will have a record in the notes. ...rjw ----------------------------------- 11-05-2010 10:34:52 user:JP-test: > Initial values > LMic: 556.3 > RMic: 543.2 > +4 mil > SR ----------------------------------- 11-05-2010 10:40:15 user:JP-test: > So, that looks to be in the correct directions. Do you agree? rjw ----------------------------------- 11-05-2010 10:40:22 user:JP-test: > yes. SR ----------------------------------- 11-05-2010 10:58:05 user:JP-test: > Have you ever used the Rsdls F60 for observing the signals from tilting - they have most of the tide > signal subtracted out. ...rjw ----------------------------------- 11-05-2010 10:58:46 user:JP-test: > yes. SR ----------------------------------- 11-05-2010 11:04:32 user:JP-test: > Shall we go on? SR ----------------------------------- 11-05-2010 11:08:11 user:JP-test: > Yes, I am only watching as you proceed. rjw ----------------------------------- 11-05-2010 11:15:47 user:JP-test: > LMic: 560.3 > RMic: 547.2 > +4 > LMic: 564.3 > RMic: 551.2 ----------------------------------- 11-05-2010 11:30:33 user:JP-test: > -2 mils > LMic: 562.3 > RMic: 549.2 > UR ----------------------------------- 11-05-2010 11:35:38 user:JP-test: > See the Rsdls F60 filters out most of the mode signal. It makes it much easier to analyse. > Looks like you have crossed the minimum for the FB tilt. rjw ----------------------------------- 11-05-2010 11:52:43 user:JP-test: > -1 mils > LMic: 561.3 > RMic: 548.2 > UR ----------------------------------- 11-05-2010 11:54:48 user:JP-test: > Please use some words to explain what you are doing. rjw ----------------------------------- 11-05-2010 12:05:39 user:JP-test: > From the Rsdls F60 - it does not appear to me that you set the FB tilt at the FB tilt null - since the set value is much lower > than the previous values. Anybody there? I will be taking a lunch break at 2:30 so I hope you can complete the tilting on your own. > ..rjw ----------------------------------- 11-05-2010 12:12:45 user:JP-test: > I think you have gone to lunch, so I am signing off for now and with check back in in a couple of hours. rjw ----------------------------------- 11-05-2010 12:24:43 user:JP-test: > we were outside eating sandwich... We are back at work. > The gravity reached a minimum value, so we can assume > that the set values: > LMic: 561.3 > RMic: 548.2 > correspond to a tilt insensitive position for this axis. > We now move on to the other axis Left-Right. LMic +2; RMic -2 > SR ----------------------------------- 11-05-2010 13:09:31 user:JP-test: > Left-Right Axis > LMic: 563.3 (+2mils) > RMic: 546.2 (-2 mils) ----------------------------------- 11-05-2010 13:11:19 user:JP-test: > LMic: 561.3 (-2 mils) > RMic: 548.2 (+2 mils) ----------------------------------- 11-05-2010 13:12:27 user:JP-test: > Right-Left Axis > LMic: 560.3 (-1 mils) > RMic: 549.2 (+1 mils) ----------------------------------- 11-05-2010 13:21:50 user:JP-test: > Final values: > LMic: 561.3 > RMic: 548.2 ----------------------------------- 11-05-2010 13:32:35 user:JP-test: > We think now to have finished with the rough adjustment using the micrometers; > we would like first to Run 2 to check how the tilts pwr and Bal are. > SR ----------------------------------- 11-05-2010 13:34:47 user:JP-test: > What are the XReset and YReset values at your final LMic and RMic values? > Are they close to the old French values? > rjw ----------------------------------- 11-05-2010 13:35:13 user:JP-test: > we have not done the Fine Adjustment yet... so the Reset values are still the old French one.... > SR ----------------------------------- 11-05-2010 13:35:57 user:JP-test: > you have the final values above from the FB and LR tilts - don't you? ...rjw ----------------------------------- 11-05-2010 13:36:04 user:JP-test: > yes... > SR ----------------------------------- 11-05-2010 13:36:58 user:JP-test: > So, normally with the micrometes at these values you can change the X and y Reset values. > And later on these are the values you will start from for the thermal leveling tilting. rjw ----------------------------------- 11-05-2010 13:38:51 user:JP-test: > we do not understand... the obtained values come from the micrometers only... > we have not touched the Reset buttons on the Gep-2, so they are still at > 287 for X and -208 for Y. > SR ----------------------------------- 11-05-2010 13:39:51 user:JP-test: > OK, you have tilted the gravimeter and found its tilt null and set the XMic and Ymic at the gravimeter tilt null. Correct? rjw ----------------------------------- 11-05-2010 13:40:05 user:JP-test: > yes, that is what we have tried to do... SR ----------------------------------- 11-05-2010 13:59:00 user:JP-test: > So, now you observe that the tiltmeters are no longer at their zero points. To electronically align the tiltmeters null with the > gravity meter null, you will change the X and Y tilt resets to "align" them to zero. Otherwise you will not control at the tilt null as determined by the gravity > meter; but you will control at the tilt null as determined by the tiltmeter. The tiltmeter null can be set anywhere - but you want to set it at the gravity null. > So, increase the tilt X and y BD to 6 and adjust the resets until XBal and YBal are close to zero. Then increase the BD = 7 and make the final adjustment > in the resets. ----------------------------------- 11-05-2010 13:59:13 user:JP-test: > ok. we do it. .. SR ----------------------------------- 11-05-2010 14:08:44 user:JP-test: > Fine Adjustment: > X Reset +286 > Y Reset -232 ----------------------------------- 11-05-2010 14:15:05 user:JP-test: > As the Tilt balance are close to the null value, we switch the Tilt Electronics from Setup to RUN2. > UR ----------------------------------- 11-05-2010 14:32:15 user:JP-test: > Now, Tilt Pwrs are around 5V, Tilt Bal around 0, everything seem correct now. > We will leave now, so thank you for your help. > I hope the installation is going well at Yebes. We are looking forward to seing the Spanish data! > Hello to Jose-Manuel and Marta, and see you. > BL, UR , SR ----------------------------------- 11-05-2010 14:32:39 user:JP-test: > Now it is time for the Merienda!!! :-D ----------------------------------- 11-05-2010 23:59:59: ********* Daily User Log end ********** 12-05-2010 00:01:01: ********* Daily User Log start ********** 12-05-2010 23:59:59: ********* Daily User Log end ********** 13-05-2010 00:01:01: ********* Daily User Log start ********** 13-05-2010 23:59:59: ********* Daily User Log end ********** 14-05-2010 00:01:01: ********* Daily User Log start ********** 14-05-2010 23:59:59: ********* Daily User Log end ********** 15-05-2010 00:01:01: ********* Daily User Log start ********** 15-05-2010 08:50:03 user:Administrator: > rjw on from Madrid ----------------------------------- 15-05-2010 08:58:52 user:Administrator: > Mode data noise looks very quiet!!! > What was the change made on 5/12/10 at 13:30 that decreased X and Y tilt noise > and reduced Temp bal offset? > ...rjw ----------------------------------- 15-05-2010 23:59:59: ********* Daily User Log end ********** 16-05-2010 00:01:01: ********* Daily User Log start ********** 16-05-2010 23:59:59: ********* Daily User Log end ********** 17-05-2010 00:01:01: ********* Daily User Log start ********** 17-05-2010 23:59:59: ********* Daily User Log end ********** 18-05-2010 00:01:01: ********* Daily User Log start ********** 18-05-2010 09:55:50 user:JP-test: Bernard and Umberto try adjusting TIP by the way of Tilt Reset changes Initial parameters: Gravity:RUN;BD=7 TiltX&Y:RUN2; BD=7 RESET X = 286 RESET Y =-232 Left-Right_Axis Time(UT) Reset_X Reset_Y 9:56 286 -232 9:58 296 -242 10:14 306 -252 10:34 316 -262 10:53 326 -272 11:04 336 -282 11:26 326 -272 Front-Back_Axis Time(UT) Reset_X Reset_Y 11:48 316 -282 12:09 336 -262 12:31 331 -267 12:47 321 -277 13:07 326 -272 Minimum gravity reached at Reset_X=326 & Reset_Y=-272; GEP-2 sets at these values 18-05-2010 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Switched on back power. ----------------------------------- 08-07-2010 09:11:48 ********* GWR Instruments UIPC Daily User Log start ********** 08-07-2010 09:13:47 user:Administrator: > GWR DAS connected to the UPS again. ----------------------------------- 08-07-2010 23:59:59: ********* Daily User Log end ********** 09-07-2010 00:01:01: ********* Daily User Log start ********** 09-07-2010 23:59:59: ********* Daily User Log end ********** 10-07-2010 00:01:01: ********* Daily User Log start ********** 10-07-2010 21:08:07 ********* GWR Instruments UIPC Daily User Log start ********** 11-07-2010 09:00:09 ********* GWR Instruments UIPC Daily User Log start ********** 11-07-2010 09:01:54 user:Administrator: > storms during the night July 10th-->11th => power failure for GWR DDAS - start GWR DDAS at 9h UT > SR ----------------------------------- 11-07-2010 23:59:59: ********* Daily User Log end ********** 12-07-2010 00:01:01: ********* Daily User Log start ********** 12-07-2010 23:59:59: 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start ********** 28-08-2010 23:59:59: ********* Daily User Log end ********** 29-08-2010 00:01:01: ********* Daily User Log start ********** 29-08-2010 23:59:59: ********* Daily User Log end ********** 30-08-2010 00:01:01: ********* Daily User Log start ********** 30-08-2010 23:59:59: ********* Daily User Log end ********** 31-08-2010 00:01:01: ********* Daily User Log start ********** 31-08-2010 23:59:59: ********* Daily User Log end ********** 01-09-2010 00:01:01: ********* Daily User Log start ********** 01-09-2010 23:59:59: ********* Daily User Log end ********** 02-09-2010 00:01:01: ********* Daily User Log start ********** 02-09-2010 23:59:59: ********* Daily User Log end ********** 03-09-2010 00:01:01: ********* Daily User Log start ********** 03-09-2010 23:59:59: ********* Daily User Log end ********** 04-09-2010 00:01:01: ********* Daily User Log start ********** 04-09-2010 23:59:59: ********* Daily User Log end ********** 05-09-2010 00:01:01: ********* Daily User Log start ********** 05-09-2010 23:59:59: ********* Daily User Log end ********** 06-09-2010 00:01:01: ********* Daily User Log start ********** 06-09-2010 23:59:59: ********* Daily User Log end ********** 07-09-2010 00:01:01: ********* Daily User Log start ********** 09-09-2010 08:46:00 ********* GWR Instruments UIPC Daily User Log start ********** 09-09-2010 08:56:40 ********* GWR Instruments UIPC Daily User Log start ********** 09-09-2010 08:58:26 user:Administrator: > storm on september 7th => power failure => GWR DDAS stopped. Start again on September 9th. ----------------------------------- 09-09-2010 23:59:59: ********* Daily User Log end ********** 10-09-2010 00:01:01: ********* Daily User Log start ********** 10-09-2010 23:59:59: ********* Daily User Log end ********** 11-09-2010 00:01:01: ********* Daily User Log start ********** 11-09-2010 23:59:59: ********* Daily User Log end ********** 12-09-2010 00:01:01: ********* Daily User Log start ********** 12-09-2010 23:59:59: ********* Daily User Log end ********** 13-09-2010 00:01:01: ********* Daily User Log start ********** 13-09-2010 23:59:59: ********* Daily User Log end ********** 14-09-2010 00:01:01: ********* Daily User Log start ********** 14-09-2010 23:59:59: ********* Daily User Log end ********** 15-09-2010 00:01:01: ********* Daily User Log start ********** 15-09-2010 23:59:59: ********* Daily User Log end ********** 16-09-2010 00:01:01: ********* Daily User Log start ********** 16-09-2010 23:59:59: ********* Daily User Log end ********** 17-09-2010 00:01:01: ********* Daily User Log start ********** 17-09-2010 23:59:59: ********* Daily User Log end ********** 18-09-2010 00:01:01: ********* Daily User Log start ********** 18-09-2010 23:59:59: ********* Daily User Log end ********** 19-09-2010 00:01:01: ********* Daily User Log start ********** 19-09-2010 23:59:59: ********* Daily User Log end ********** 20-09-2010 00:01:01: ********* Daily User Log start ********** 20-09-2010 23:59:59: ********* Daily User Log end ********** 21-09-2010 00:01:01: ********* Daily User Log start ********** 21-09-2010 23:59:59: ********* Daily User Log end ********** 22-09-2010 00:01:01: ********* Daily User Log start ********** 22-09-2010 23:59:59: ********* Daily User Log end ********** 23-09-2010 00:01:01: ********* Daily User Log start ********** 23-09-2010 23:59:59: ********* Daily User Log end ********** 24-09-2010 00:01:01: ********* Daily User Log start ********** 24-09-2010 23:59:59: ********* Daily User Log end ********** 25-09-2010 00:01:01: ********* Daily User Log start ********** 25-09-2010 23:59:59: ********* Daily User Log end ********** 26-09-2010 00:01:01: ********* Daily User Log start ********** 26-09-2010 23:59:59: ********* Daily User Log end ********** 27-09-2010 00:01:01: ********* Daily User Log start ********** 27-09-2010 23:59:59: ********* Daily User Log end ********** 28-09-2010 00:01:01: ********* Daily User Log start ********** 28-09-2010 23:59:59: ********* Daily User Log end ********** 29-09-2010 00:01:01: ********* Daily User Log start ********** 29-09-2010 23:59:59: ********* Daily User Log end ********** 30-09-2010 00:01:01: ********* Daily User Log start ********** 30-09-2010 23:59:59: ********* Daily User Log end ********** 01-10-2010 00:01:01: ********* Daily User Log start ********** 01-10-2010 23:59:59: ********* Daily User Log end ********** 02-10-2010 00:01:01: ********* Daily User Log start ********** 02-10-2010 23:59:59: ********* Daily User Log end ********** 03-10-2010 00:01:01: ********* Daily User Log start ********** 03-10-2010 23:59:59: ********* Daily User Log end ********** 04-10-2010 00:01:01: ********* Daily User Log start ********** 04-10-2010 23:59:59: ********* Daily User Log end ********** 05-10-2010 00:01:01: ********* Daily User Log start ********** 05-10-2010 23:59:59: ********* Daily User Log end ********** 06-10-2010 00:01:01: ********* Daily User Log start ********** 06-10-2010 23:59:59: ********* Daily User Log end ********** 07-10-2010 00:01:01: ********* Daily User Log start ********** 07-10-2010 23:59:59: ********* Daily User Log end ********** 08-10-2010 00:01:01: ********* Daily User Log start ********** 08-10-2010 23:59:59: ********* Daily User Log end ********** 09-10-2010 00:01:01: ********* Daily User Log start ********** 09-10-2010 23:59:59: ********* Daily User Log end ********** 10-10-2010 00:01:01: ********* Daily User Log start ********** 10-10-2010 23:59:59: ********* Daily User Log end ********** 11-10-2010 00:01:01: ********* Daily User Log start ********** 11-10-2010 23:59:59: ********* Daily User Log end ********** 12-10-2010 00:01:01: ********* Daily User Log start ********** 12-10-2010 23:59:59: ********* Daily User Log end ********** 13-10-2010 00:01:01: ********* Daily User Log start ********** 13-10-2010 23:59:59: ********* Daily User Log end ********** 14-10-2010 00:01:01: ********* Daily User Log start ********** 14-10-2010 23:59:59: ********* Daily User Log end ********** 15-10-2010 00:01:01: ********* Daily User Log start ********** 15-10-2010 23:59:59: ********* Daily User Log end ********** 16-10-2010 00:01:01: ********* Daily User Log start ********** 16-10-2010 23:59:59: ********* Daily User Log end ********** 17-10-2010 00:01:01: ********* Daily User Log start ********** 17-10-2010 23:59:59: ********* Daily User Log end ********** 18-10-2010 00:01:01: ********* Daily User Log start ********** 18-10-2010 23:59:59: ********* Daily User Log end ********** 19-10-2010 00:01:01: ********* Daily User Log start ********** 19-10-2010 23:59:59: ********* Daily User Log end ********** 20-10-2010 00:01:01: ********* Daily User Log start ********** 20-10-2010 23:59:59: ********* Daily User Log end ********** 21-10-2010 00:01:01: ********* Daily User Log start ********** 21-10-2010 23:59:59: ********* Daily User Log end ********** 22-10-2010 00:01:01: ********* Daily User Log start ********** 22-10-2010 23:59:59: ********* Daily User Log end ********** 23-10-2010 00:01:01: ********* Daily User Log start ********** 23-10-2010 23:59:59: ********* Daily User Log end ********** 24-10-2010 00:01:01: ********* Daily User Log start ********** 24-10-2010 23:59:59: ********* Daily User Log end ********** 25-10-2010 00:01:01: ********* Daily User Log start ********** 25-10-2010 23:59:59: ********* Daily User Log end ********** 26-10-2010 00:01:01: ********* Daily User Log start ********** 26-10-2010 23:59:59: ********* Daily User Log end ********** 27-10-2010 00:01:01: ********* Daily User Log start ********** 27-10-2010 23:59:59: ********* Daily User Log end ********** 28-10-2010 00:01:01: ********* Daily User Log start ********** 28-10-2010 23:59:59: ********* Daily User Log end ********** 29-10-2010 00:01:01: ********* Daily User Log start ********** 29-10-2010 23:59:59: ********* Daily User Log end ********** 30-10-2010 00:01:01: ********* Daily User Log start ********** 30-10-2010 23:59:59: ********* Daily User Log end ********** 31-10-2010 00:01:01: ********* Daily User Log start ********** 31-10-2010 23:59:59: ********* Daily User Log end ********** 01-11-2010 00:01:01: ********* Daily User Log start ********** 01-11-2010 23:59:59: ********* Daily User Log end ********** 02-11-2010 00:01:01: ********* Daily User Log start ********** 02-11-2010 23:59:59: ********* Daily User Log end ********** 03-11-2010 00:01:01: ********* Daily User Log start ********** 03-11-2010 23:59:59: ********* Daily User Log end ********** 04-11-2010 00:01:01: ********* Daily User Log start ********** 04-11-2010 23:59:59: ********* Daily User Log end ********** 05-11-2010 00:01:01: ********* Daily User Log start ********** 05-11-2010 23:59:59: ********* Daily User Log end ********** 06-11-2010 00:01:01: ********* Daily User Log start ********** 06-11-2010 23:59:59: ********* Daily User Log end ********** 07-11-2010 00:01:01: ********* Daily User Log start ********** 07-11-2010 23:59:59: ********* Daily User Log end ********** 08-11-2010 00:01:01: ********* Daily User Log start ********** 08-11-2010 23:59:59: ********* Daily User Log end ********** 09-11-2010 00:01:01: ********* Daily User Log start ********** 09-11-2010 23:59:59: ********* Daily User Log end ********** 10-11-2010 00:01:01: ********* Daily User Log start ********** 10-11-2010 23:59:59: ********* Daily User Log end ********** 11-11-2010 00:01:01: ********* Daily User Log start ********** 11-11-2010 23:59:59: ********* Daily User Log end ********** 12-11-2010 00:01:01: ********* Daily User Log start ********** 12-11-2010 23:59:59: ********* Daily User Log end ********** 13-11-2010 00:01:01: ********* Daily User Log start ********** 13-11-2010 23:59:59: ********* Daily User Log end ********** 14-11-2010 00:01:01: ********* Daily User Log start ********** 14-11-2010 23:59:59: ********* Daily User Log end ********** 15-11-2010 00:01:01: ********* Daily User Log start ********** 15-11-2010 23:59:59: ********* Daily User Log end ********** 16-11-2010 00:01:01: ********* Daily User Log start ********** 16-11-2010 23:59:59: ********* Daily User Log end ********** 17-11-2010 00:01:01: ********* Daily User Log start ********** 17-11-2010 23:59:59: ********* Daily User Log end ********** 18-11-2010 00:01:01: ********* Daily User Log start ********** 18-11-2010 23:59:59: ********* Daily User Log end ********** 19-11-2010 00:01:01: ********* Daily User Log start ********** 19-11-2010 23:59:59: ********* Daily User Log end ********** 20-11-2010 00:01:01: ********* Daily User Log start ********** 20-11-2010 23:59:59: ********* Daily User Log end ********** 21-11-2010 00:01:01: ********* Daily User Log start ********** 21-11-2010 23:59:59: ********* Daily User Log end ********** 22-11-2010 00:01:01: ********* Daily User Log start ********** 22-11-2010 23:59:59: ********* Daily User Log end ********** 23-11-2010 00:01:01: ********* Daily User Log start ********** 23-11-2010 23:59:59: ********* Daily User Log end ********** 24-11-2010 00:01:01: ********* Daily User Log start ********** 24-11-2010 23:59:59: ********* Daily User Log end ********** 25-11-2010 00:01:01: ********* Daily User Log start ********** 25-11-2010 23:59:59: ********* Daily User Log end ********** 26-11-2010 00:01:01: ********* Daily User Log start ********** 26-11-2010 23:59:59: ********* Daily User Log end ********** 27-11-2010 00:01:01: ********* Daily User Log start ********** 27-11-2010 23:59:59: ********* Daily User Log end ********** 28-11-2010 00:01:01: ********* Daily User Log start ********** 28-11-2010 23:59:59: ********* Daily User Log end ********** 29-11-2010 00:01:01: ********* Daily User Log start ********** 29-11-2010 23:59:59: ********* Daily User Log end ********** 30-11-2010 00:01:01: ********* Daily User Log start ********** 30-11-2010 23:59:59: ********* Daily User Log end ********** 01-12-2010 00:01:01: ********* Daily User Log start ********** 01-12-2010 23:59:59: ********* Daily User Log end ********** 02-12-2010 00:01:01: ********* Daily User Log start ********** 02-12-2010 23:59:59: ********* Daily User Log end ********** 03-12-2010 00:01:01: ********* Daily User Log start ********** 03-12-2010 23:59:59: ********* Daily User Log end ********** 04-12-2010 00:01:01: ********* Daily User Log start ********** 04-12-2010 23:59:59: ********* Daily User Log end ********** 05-12-2010 00:01:01: ********* Daily User Log start ********** 05-12-2010 23:59:59: ********* Daily User Log end ********** 06-12-2010 00:01:01: ********* Daily User Log start ********** 06-12-2010 23:59:59: ********* Daily User Log end ********** 07-12-2010 00:01:01: ********* Daily User Log start ********** 07-12-2010 23:59:59: ********* Daily User Log end ********** 08-12-2010 00:01:01: ********* Daily User Log start ********** 08-12-2010 23:59:59: ********* Daily User Log end ********** 09-12-2010 00:01:01: ********* Daily User Log start ********** 09-12-2010 23:59:59: ********* Daily User Log end ********** 10-12-2010 00:01:01: ********* Daily User Log start ********** 10-12-2010 23:59:59: ********* Daily User Log end ********** 11-12-2010 00:01:01: ********* Daily User Log start ********** 11-12-2010 23:59:59: ********* Daily User Log end ********** 12-12-2010 00:01:01: ********* Daily User Log start ********** 12-12-2010 23:59:59: ********* Daily User Log end ********** 13-12-2010 00:01:01: ********* Daily User Log start ********** 13-12-2010 23:59:59: ********* Daily User Log end ********** 14-12-2010 00:01:01: ********* Daily User Log start ********** 14-12-2010 23:59:59: ********* Daily User Log end ********** 15-12-2010 00:01:01: ********* Daily User Log start ********** 15-12-2010 23:59:59: ********* Daily User Log end ********** 16-12-2010 00:01:01: ********* Daily User Log start ********** 16-12-2010 23:59:59: ********* Daily User Log end ********** 17-12-2010 00:01:01: ********* Daily User Log start ********** 17-12-2010 23:59:59: ********* Daily User Log end ********** 18-12-2010 00:01:01: ********* Daily User Log start ********** 18-12-2010 23:59:59: ********* Daily User Log end ********** 19-12-2010 00:01:01: ********* Daily User Log start ********** 19-12-2010 23:59:59: ********* Daily User Log end ********** 20-12-2010 00:01:01: ********* Daily User Log start ********** 20-12-2010 23:59:59: ********* Daily User Log end ********** 21-12-2010 00:01:01: ********* Daily User Log start ********** 21-12-2010 23:59:59: ********* Daily User Log end ********** 22-12-2010 00:01:01: ********* Daily User Log start ********** 22-12-2010 23:59:59: ********* Daily User Log end ********** 23-12-2010 00:01:01: ********* Daily User Log start ********** 23-12-2010 23:59:59: ********* Daily User Log end ********** 24-12-2010 00:01:01: ********* Daily User Log start ********** 24-12-2010 23:59:59: ********* Daily User Log end ********** 25-12-2010 00:01:01: ********* Daily User Log start ********** 25-12-2010 23:59:59: ********* Daily User Log end ********** 26-12-2010 00:01:01: ********* Daily User Log start ********** 26-12-2010 23:59:59: ********* Daily User Log end ********** 27-12-2010 00:01:01: ********* Daily User Log start ********** 27-12-2010 23:59:59: ********* Daily User Log end ********** 28-12-2010 00:01:01: ********* Daily User Log start ********** 28-12-2010 23:59:59: ********* Daily User Log end ********** 29-12-2010 00:01:01: ********* Daily User Log start ********** 29-12-2010 23:59:59: ********* Daily User Log end ********** 30-12-2010 00:01:01: ********* Daily User Log start ********** 30-12-2010 23:59:59: ********* Daily User Log end ********** 31-12-2010 00:01:01: ********* Daily User Log start **********