40m
QIL
Cryo_Lab
CTN
SUS_Lab
TCS_Lab
OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
|
40m Log |
Not logged in |
 |
|
Wed Jul 27 15:03:02 2016, sisyphus, Metaphysics, SUS, Broken wire
|
Wed Jul 27 16:56:47 2016, rana, Metaphysics, SUS, Broken wire
|
Thu Jul 28 08:42:36 2016, Steve, Update, SUS, wire clamp
|
Fri Jul 29 15:17:23 2016, Steve, Update, SUS, wire and clamping test
|
Fri Jul 29 20:12:54 2016, gautam, Update, SUS, third time - no luck
|
Mon Aug 1 14:09:20 2016, Steve, Update, SUS, third time - no luck
|
Tue Aug 9 16:19:27 2016, Steve, Update, SUS, torque driver for wire clamp
|
Wed Aug 10 15:34:24 2016, Steve, Update, SUS, 6 in-lbs torque driver for wire clamp screw
|
Wed Aug 3 00:15:39 2016, gautam, Update, SUS, ETMX suspended
|
Wed Aug 3 09:26:54 2016, Lydia, Update, SUS, ETMX suspended: photos 8x
|
Thu Aug 4 03:14:39 2016, gautam, Update, SUS, ETMX suspended
|
Fri Aug 5 02:17:10 2016, gautam, Update, SUS, ETMX Ruby Wire Standoff Ready for Gluing 8x
|
Fri Aug 5 04:43:09 2016, Koji, Update, SUS, ETMX Ruby Wire Standoff Ready for Gluing
|
Fri Aug 5 18:21:28 2016, gautam, Update, SUS, ETMX Ruby Wire Standoff GLUED 11x
|
Sun Aug 7 14:53:39 2016, ericq , Update, SUS, ETMX Standoff gluing was successful 
|
Tue Aug 9 00:44:43 2016, gautam , Update, SUS, ETMY patch-up
|
Tue Aug 9 15:27:57 2016, gautam , Update, SUS, ETMY patch-up 
|
Wed Aug 10 03:08:03 2016, gautam , Update, SUS, ETMY patch-up
|
Wed Aug 10 23:45:03 2016, gautam , Update, SUS, ETMY re-suspended 7x
|
Thu Aug 11 00:20:41 2016, Koji, Update, SUS, ETMY re-suspended
|
Thu Aug 11 11:56:40 2016, gautam, Update, SUS, ETMY re-suspended
|
Mon Aug 15 18:28:15 2016, gautam, Update, SUS, Air-bake preparation
|
Tue Aug 16 08:04:49 2016, Steve, Update, SUS, ETMY had Aluminum bridge
|
Tue Aug 16 21:54:27 2016, gautam, Update, SUS, Air-bake - IN PROGRESS
|
Wed Aug 17 08:47:43 2016, ericq, Update, SUS, Air-bake finished
|
Wed Aug 17 23:00:57 2016, gautam, Update, SUS, Air-bake of towers
|
Thu Aug 18 08:17:16 2016, Steve, Update, SUS, wire clamping preparation
|
Thu Aug 18 14:14:20 2016, gautam, Update, SUS, Air-bake of towers - finished
|
Fri Aug 19 22:51:12 2016, gautam, Update, SUS, ETMs first-contacted
|
Sun Aug 21 16:23:05 2016, gautam, Update, SUS, ETMX suspended
|
Mon Aug 22 13:06:11 2016, gautam, Update, SUS, ETMY suspended
|
Mon Aug 22 18:04:24 2016, gautam, Update, SUS, ETMY OSEMs inserted
|
Tue Aug 23 19:35:38 2016, gautam, Update, SUS, ETMY back in IFO 10x
|
Thu Aug 25 21:11:43 2016, gautam, Update, SUS, ETMY back in IFO
|
Fri Aug 26 11:35:44 2016, gautam, Update, SUS, ETMY UL sensor problematic  
|
Fri Aug 26 14:05:38 2016, Steve, Update, SUS, ETMY UL sensor problematic
|
Fri Aug 26 14:09:46 2016, ericq, Update, SUS, ETMY UL sensor problematic
|
Sun Aug 28 21:40:11 2016, gautam, Update, SUS, ETMY UL sensor problematic
|
Mon Aug 29 09:37:05 2016, gautam, Update, SUS, ETMY UL sensor problematic
|
Mon Aug 29 14:42:06 2016, gautam, Update, SUS, ETMY Satellite box diagnostics 
|
Fri Aug 26 17:48:14 2016, gautam, Update, SUS, bounce mode coupling reduction
|
Mon Aug 29 21:53:14 2016, Lydia, Update, SUS, ETMY bounce mode coupling 
|
Tue Aug 30 20:26:36 2016, gautam, Update, SUS, ITMY installed  
|
Wed Aug 31 18:07:43 2016, Johannes, Update, SUS, ITMY free swinging
|
Wed Aug 31 22:09:18 2016, gautam, Update, SUS, Y arm locked to Green
|
Thu Sep 1 08:30:24 2016, Steve, Update, SUS, ITMY_UL is sick 
|
Tue Sep 6 20:30:56 2016, rana, Update, SUS, ITMY_UL is sick
|
Tue Sep 13 11:00:59 2016, Lydia, Update, SUS, ETMY UL glitch returned
|
Thu Sep 1 19:59:22 2016, Johannes, Update, SUS, IR mode flashes in Y arm
|
Fri Sep 2 21:09:08 2016, gautam, Update, SUS, Y arm locked in air 
|
Tue Sep 6 20:45:14 2016, gautam, Update, SUS, X arm test masses back in chamber   
|
Thu Sep 8 22:12:36 2016, gautam, Update, SUS, X arm in place, locked to green, IR flashes visible
|
Fri Sep 9 17:50:02 2016, gautam, Update, SUS, Heavy doors on BS-PRM, ETMY chambers
|
Sat Sep 10 14:26:01 2016, rana, Update, General, PRM SRM alignment
|
Mon Sep 12 17:15:22 2016, Johannes, Update, General, PRM SRM alignment 
|
Thu Sep 1 19:18:14 2016, Johannes, Update, SUS, ITMX and ETMX preemptive table leveling 8x
|
Fri Sep 2 21:15:53 2016, gautam, Update, SUS, ITMX and ETMX preemptive table leveling
|
Thu Sep 1 15:43:16 2016, rana, Update, SUS, OSEM adjustments
|
Mon Sep 5 19:57:24 2016, Osamu, Update, SUS, OSEM adjustments
|
|
Message ID: 12362
Entry time: Wed Aug 3 00:15:39 2016
In reply to: 12357
Reply to this: 12363
12370
|
Author: |
gautam |
Type: |
Update |
Category: |
SUS |
Subject: |
ETMX suspended |
|
|
[lydia, steve, ericq, gautam]
Summary:
- ETMX is now suspended by wire clamps (winches have been removed)

- Wire clamp was machined by shop, D groove widened to spec, old wire grooves removed from face
- We also sanded the part of the suspension tower in contact with the primary wire clamp, as there were a couple of craters there which looked dangerous (pictures to follow)
- Height was adjusted by centering magnets on OSEMs. We then winched an extra half turn in anticipation of wire sag
- I then proceeded to tighten, first, the primary wire standoff (I reduced the torque on the torque wrench to ~1.25Nm), and then the secondary wire clamps.
- Checked that the ruby standoff is sitting on the optic barrel and not on glue
- Later in the evening, I inserted OSEMs, centered magnets, and checked that the damping scheme set up last week works (I'm leaving the damping on, bottom EQ stops are ~0.5mm from the optic)
- Checked the pitch balancing - initially, we were ~60mrad off. By using the tweezers to gently adjust the position of the ruby standoff (after clamping the optic, turning the damping off), I was able to improve the situation a little bit - now we are ~20 mrad off. I am not attempting to do the fine pitch balancing tonight, but all parts of the PZT buzzer set up are ready to go in the cleanroom.
- Unfortunately, in the process of doing the pitch balancing, the position of the magnets relative to the OSEM coils have moved. Now the UR magnet looks a little high relative to the coil, but perhaps after any sag has set in, we should be alright. Else, we can probably get away by inserting one of the little metal shim pieces, the adjustment required is small.
- Lydia will upload some photos soon.
- We actually went through another failed attempt today - this time, the problem was that the winches were not sufficiently secure at the top, such that when the range of the winch was nearing its end, the whole assembly twisted and took the wire along with it. Perhaps this would not have happened if we had a winch adaptor plate handy...
- Plan for tomorrow:
- Fine pitch balancing using PZT buzzer
- Clean ETMY epoxy residue from knocked off magnet
- Glue wire standoff
- Glue ETMY magnet
|