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40m
QIL
Cryo_Lab
CTN
SUS_Lab
TCS_Lab
OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
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| 40m Log |
Not logged in |
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 Wed Jul 27 15:03:02 2016, sisyphus, Metaphysics, SUS, Broken wire 
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 Wed Jul 27 16:56:47 2016, rana, Metaphysics, SUS, Broken wire
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Thu Jul 28 08:42:36 2016, Steve, Update, SUS, wire clamp
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Fri Jul 29 15:17:23 2016, Steve, Update, SUS, wire and clamping test
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Fri Jul 29 20:12:54 2016, gautam, Update, SUS, third time - no luck
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Mon Aug 1 14:09:20 2016, Steve, Update, SUS, third time - no luck
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Tue Aug 9 16:19:27 2016, Steve, Update, SUS, torque driver for wire clamp
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Wed Aug 10 15:34:24 2016, Steve, Update, SUS, 6 in-lbs torque driver for wire clamp screw
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Wed Aug 3 00:15:39 2016, gautam, Update, SUS, ETMX suspended
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Wed Aug 3 09:26:54 2016, Lydia, Update, SUS, ETMX suspended: photos 8x
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Thu Aug 4 03:14:39 2016, gautam, Update, SUS, ETMX suspended
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Fri Aug 5 02:17:10 2016, gautam, Update, SUS, ETMX Ruby Wire Standoff Ready for Gluing 8x
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Fri Aug 5 04:43:09 2016, Koji, Update, SUS, ETMX Ruby Wire Standoff Ready for Gluing
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Fri Aug 5 18:21:28 2016, gautam, Update, SUS, ETMX Ruby Wire Standoff GLUED 11x
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Sun Aug 7 14:53:39 2016, ericq , Update, SUS, ETMX Standoff gluing was successful
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Tue Aug 9 00:44:43 2016, gautam , Update, SUS, ETMY patch-up
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Tue Aug 9 15:27:57 2016, gautam , Update, SUS, ETMY patch-up
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Wed Aug 10 03:08:03 2016, gautam , Update, SUS, ETMY patch-up
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Wed Aug 10 23:45:03 2016, gautam , Update, SUS, ETMY re-suspended 7x
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Thu Aug 11 00:20:41 2016, Koji, Update, SUS, ETMY re-suspended
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Thu Aug 11 11:56:40 2016, gautam, Update, SUS, ETMY re-suspended
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Mon Aug 15 18:28:15 2016, gautam, Update, SUS, Air-bake preparation
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Tue Aug 16 08:04:49 2016, Steve, Update, SUS, ETMY had Aluminum bridge
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Tue Aug 16 21:54:27 2016, gautam, Update, SUS, Air-bake - IN PROGRESS
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Wed Aug 17 08:47:43 2016, ericq, Update, SUS, Air-bake finished
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Wed Aug 17 23:00:57 2016, gautam, Update, SUS, Air-bake of towers
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Thu Aug 18 08:17:16 2016, Steve, Update, SUS, wire clamping preparation
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Thu Aug 18 14:14:20 2016, gautam, Update, SUS, Air-bake of towers - finished
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Fri Aug 19 22:51:12 2016, gautam, Update, SUS, ETMs first-contacted
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Sun Aug 21 16:23:05 2016, gautam, Update, SUS, ETMX suspended
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Mon Aug 22 13:06:11 2016, gautam, Update, SUS, ETMY suspended
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Mon Aug 22 18:04:24 2016, gautam, Update, SUS, ETMY OSEMs inserted
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Tue Aug 23 19:35:38 2016, gautam, Update, SUS, ETMY back in IFO 10x
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Thu Aug 25 21:11:43 2016, gautam, Update, SUS, ETMY back in IFO
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Fri Aug 26 11:35:44 2016, gautam, Update, SUS, ETMY UL sensor problematic
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Fri Aug 26 14:05:38 2016, Steve, Update, SUS, ETMY UL sensor problematic
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Fri Aug 26 14:09:46 2016, ericq, Update, SUS, ETMY UL sensor problematic
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Sun Aug 28 21:40:11 2016, gautam, Update, SUS, ETMY UL sensor problematic
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Mon Aug 29 09:37:05 2016, gautam, Update, SUS, ETMY UL sensor problematic
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Mon Aug 29 14:42:06 2016, gautam, Update, SUS, ETMY Satellite box diagnostics
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Fri Aug 26 17:48:14 2016, gautam, Update, SUS, bounce mode coupling reduction
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Mon Aug 29 21:53:14 2016, Lydia, Update, SUS, ETMY bounce mode coupling
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Tue Aug 30 20:26:36 2016, gautam, Update, SUS, ITMY installed
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Wed Aug 31 18:07:43 2016, Johannes, Update, SUS, ITMY free swinging
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Wed Aug 31 22:09:18 2016, gautam, Update, SUS, Y arm locked to Green
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Thu Sep 1 08:30:24 2016, Steve, Update, SUS, ITMY_UL is sick
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Tue Sep 6 20:30:56 2016, rana, Update, SUS, ITMY_UL is sick
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Tue Sep 13 11:00:59 2016, Lydia, Update, SUS, ETMY UL glitch returned
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Thu Sep 1 19:59:22 2016, Johannes, Update, SUS, IR mode flashes in Y arm
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Fri Sep 2 21:09:08 2016, gautam, Update, SUS, Y arm locked in air
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Tue Sep 6 20:45:14 2016, gautam, Update, SUS, X arm test masses back in chamber
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Thu Sep 8 22:12:36 2016, gautam, Update, SUS, X arm in place, locked to green, IR flashes visible
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Fri Sep 9 17:50:02 2016, gautam, Update, SUS, Heavy doors on BS-PRM, ETMY chambers
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Sat Sep 10 14:26:01 2016, rana, Update, General, PRM SRM alignment
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Mon Sep 12 17:15:22 2016, Johannes, Update, General, PRM SRM alignment
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Thu Sep 1 19:18:14 2016, Johannes, Update, SUS, ITMX and ETMX preemptive table leveling 8x
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Fri Sep 2 21:15:53 2016, gautam, Update, SUS, ITMX and ETMX preemptive table leveling
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Thu Sep 1 15:43:16 2016, rana, Update, SUS, OSEM adjustments
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Mon Sep 5 19:57:24 2016, Osamu, Update, SUS, OSEM adjustments
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Message ID: 12450
Entry time: Mon Aug 29 09:37:05 2016
In reply to: 12449
Reply to this: 12451
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| Author: |
gautam |
| Type: |
Update |
| Category: |
SUS |
| Subject: |
ETMY UL sensor problematic |
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It looks like the problem is indeed in the Satellite box. Attachment #1 shows the second trend for the last 12 hours (~930pm 28 Aug 2016 - 930am 29 Aug 2016) for the ITMY and ETMY sensor signals. The satellite boxes for the two were switched during this time (the switch is seen at the leftmost edge of the plots). After the switch, ETMY UL has been well behaved, though ITMY UL shows evidence of excursions similar to what we have been seeing. All the ITMY coils are pulled out of the suspension cage currently, and are just sitting on the optical table, so they should just be reading out a constant value. I think this is conclusive evidence that the problem is with the Satellite box and not the OSEM itself. I will pull the Satellite box out and have a look at its innards to see if I can find the origin of the problem... |
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