40m
QIL
Cryo_Lab
CTN
SUS_Lab
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OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
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40m Log |
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Tue Feb 2 17:09:17 2021, yehonathan, Update, BHD, SOS assembly 
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Tue Feb 2 18:24:54 2021, Koji, Update, BHD, SOS assembly
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Thu Feb 4 15:14:55 2021, Yehonathan, Update, BHD, SOS assembly
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Tue Feb 16 13:13:39 2021, Yehonathan, Update, BHD, SOS assembly
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Tue Feb 16 15:29:01 2021, Koji, Update, BHD, SOS assembly
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Tue Feb 16 22:59:36 2021, Yehonathan, Update, BHD, SOS assembly
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Fri Feb 19 12:21:04 2021, Yehonathan, Update, BHD, SOS assembly
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Fri Mar 26 10:25:37 2021, Yehonathan, Update, BHD, SOS assembly
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Tue Apr 6 15:42:57 2021, Yehonathan, Update, BHD, SOS assembly
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Fri Apr 9 20:54:54 2021, Yehonathan, Update, BHD, SOS assembly 
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Mon Apr 12 17:30:11 2021, Yehonathan, Update, BHD, SOS assembly
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Mon May 3 16:49:04 2021, Yehonathan, Update, BHD, SOS assembly 
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Tue Jun 1 16:17:06 2021, Yehonathan, Update, BHD, SOS assembly
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Wed Jun 2 01:03:19 2021, Koji, Update, BHD, SOS assembly
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Fri Jun 18 19:02:00 2021, Yehonathan, Update, BHD, SOS assembly  
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Fri Jun 18 23:53:08 2021, Koji, Update, BHD, SOS assembly
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Tue Jun 22 17:05:26 2021, Yehonathan, Update, BHD, SOS assembly
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Tue Jul 27 17:14:18 2021, Yehonathan, Update, BHD, SOS assembly
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Tue Jul 27 20:12:53 2021, Koji, Update, BHD, SOS assembly
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Mon Jun 28 12:35:19 2021, Yehonathan, Update, BHD, SOS assembly    
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Tue Jun 29 20:45:52 2021, Yehonathan, Update, BHD, SOS assembly 
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Thu Jul 1 16:45:25 2021, Yehonathan, Update, BHD, SOS assembly
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Wed Jul 28 12:00:35 2021, Yehonathan, Update, BHD, SOS assembly
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Thu Sep 23 18:18:07 2021, Yehonathan, Update, BHD, SOS assembly 
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Tue Oct 26 10:17:14 2021, Yehonathan, Update, BHD, SOS assembly
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Thu Oct 28 23:13:19 2021, Yehonathan, Update, BHD, SOS assembly   
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Tue Nov 2 15:02:03 2021, Yehonathan, Update, BHD, SOS assembly
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Tue Nov 2 22:50:30 2021, Koji, Update, BHD, SOS assembly
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Mon Nov 8 17:22:27 2021, Yehonathan, Update, BHD, SOS assembly 
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Tue Nov 9 11:11:37 2021, Yehonathan, Update, BHD, SOS assembly
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Fri Nov 12 23:47:29 2021, Yehonathan, Update, BHD, SOS assembly
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Tue Nov 16 17:42:46 2021, Yehonathan, Update, BHD, SOS assembly    
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Tue Nov 16 18:28:53 2021, Koji, Update, BHD, SOS assembly 
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Wed Nov 24 14:15:15 2021, Yehonathan, Update, BHD, SOS assembly
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Wed Dec 1 12:57:08 2021, Yehonathan, Update, BHD, SOS assembly 7x
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Mon Dec 6 18:23:04 2021, Yehonathan, Update, BHD, SOS assembly
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Thu Dec 9 21:57:35 2021, Yehonathan, Update, BHD, SOS assembly 
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Tue Dec 14 14:02:33 2021, Yehonathan, Update, BHD, SOS assembly 
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Wed Dec 15 22:09:53 2021, Yehonathan, Update, BHD, SOS assembly
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Thu Dec 16 18:16:36 2021, Yehonathan, Update, BHD, SOS assembly   
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Fri Dec 17 17:50:17 2021, Yehonathan, Update, BHD, SOS assembly   
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Fri Dec 17 19:16:45 2021, Koji, Update, BHD, SOS assembly
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Fri Dec 17 22:16:07 2021, Yehonathan, Update, BHD, SOS assembly
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Sat Dec 18 00:56:14 2021, Koji, Update, BHD, SOS assembly
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Mon Dec 20 13:52:01 2021, Koji, Update, BHD, SOS assembly
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Mon Dec 20 17:26:13 2021, Yehonathan, Update, BHD, SOS assembly 7x
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Tue Dec 21 18:04:46 2021, Yehonathan, Update, BHD, SOS assembly
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Tue Jan 4 18:27:23 2022, Paco, Update, BHD, SOS assembly -- PR3    
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Wed Jan 5 19:18:06 2022, Yehonathan, Update, BHD, SOS assembly -- AS4  
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Thu Jan 6 17:00:20 2022, Yehonathan, Update, BHD, SOS assembly -- LO2  
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Thu Jan 6 17:16:51 2022, Yehonathan, Update, BHD, Using Peek screws/nuts
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Fri Jan 7 17:59:45 2022, Yehonathan, Update, BHD, SOS assembly -- SR2  
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Fri Jan 7 18:24:25 2022, Koji, Update, BHD, SOS assembly -- SR2
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Mon Jan 10 14:00:44 2022, not Koji, Update, BHD, SOS assembly -- SR2
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Tue Jan 11 09:53:14 2022, not Koji, Update, BHD, SOS assembly -- Peek screws and nuts
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Thu Jan 13 16:08:00 2022, Yehonathan, Update, BHD, gluing magnets after AS1/4 misfortune
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Fri Jan 14 17:33:10 2022, Yehonathan, Update, BHD, AS4 resurrection  
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Wed Jan 19 18:15:34 2022, Yehonathan, Update, BHD, AS1 resurrection   
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Thu Jan 20 12:10:51 2022, Yehonathan, Update, BHD, AS1 resurrection  
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Mon Jan 24 17:58:21 2022, Yehonathan, Update, BHD, PR2 Suspension
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Tue Jan 25 18:37:12 2022, TYehonathan, Update, BHD, PR2 Suspension  
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Thu Feb 24 18:05:58 2022, Yehonathan, Update, BHD, Re-susspension of AS1 
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Wed Mar 2 14:02:43 2022, Yehonathan, Update, BHD, Re-susspension of AS1
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Thu Mar 3 17:09:46 2022, Paco, Update, BHD, Re-susspension of AS1
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Mon Mar 7 16:56:08 2022, Yehonathan, Update, BHD, Re-susspension of AS1  
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Mon Mar 7 18:53:16 2022, Koji, Update, BHD, Re-susspension of AS1
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Tue Mar 8 12:24:13 2022, Yehonathan, Update, BHD, Re-susspension of AS1  
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Tue Mar 8 19:29:36 2022, Paco, Update, BHD, Re-balance of AS1
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Wed Mar 9 09:35:26 2022, Paco, Update, BHD, Re-balance of AS1
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Message ID: 16505
Entry time: Tue Dec 14 14:02:33 2021
In reply to: 16497
Reply to this: 16511
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Author: |
Yehonathan |
Type: |
Update |
Category: |
BHD |
Subject: |
SOS assembly |
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{Yehonathan, Paco}
I fixed the overall height of the adapter (attachment 1). I put an OSEM next to the side magnet. I positioned a camera in front of the SOS and connected it to my laptop for live streaming. I painted a line indicating the height of the OSEM plates and a line in between with the mean height. I discarded the wire clamp on the suspension block I released the wires from the winches and pulled on them until the magnet was roughly in the right position. I clamped the wires back on the winches and adjusted them until the magnet was on the middle line. I also verified that the roll of the adapter is aligned as before by making sure that the horizontal features on the adapter are parallel to the horizontal features on the SOS tower.
The wires were clamped to the suspension block using a new wire clamp.
I Found that locking the counterweight setscrew changes the alignment. Today we verified this effect. We released the setscrew and pre-compensated by adjusting the counterweight such that when the setscrew was locked the mirror was aligned.
We measured mechanical resonances (attachment 2). This time the yaw motion was very quiet so we got a smaller peak for the yaw. The peaks are the same as before. Y readout has peaks around the pitch and pos resonances that don't appear in the X readout. I'm not sure what they are. Maybe coming from the QPD electronics.
We locked the adapter using the EQ stops. We made sure the alignment stays close to ideal.
We installed OSEMs on the SOS. We chose suboptimal OSEMs because LO1 will only be used for steering. I made a spreadsheet copying the OSEM catalog into it. There we mark which OSEM goes where.
I cleaned the optic using the ion gun with a pressure of 30 PSI.
The next steps are:
1. Engrave the SOS tower.
2. Cut the wire at the winches and remove the winch adapter plate.
3. Wrap the SOS with foil.
4. Install the SOS in the vacuum chamber.
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