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| 40m Log |
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 Tue Sep 10 15:41:37 2019, aaron, Update, IOO, WFS measurements 
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 Wed Sep 11 10:26:56 2019, aaron, Update, IOO, WFS measurements
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Wed Sep 11 14:37:43 2019, aaron, Update, IOO, WFS measurements
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Thu Sep 12 12:42:31 2019, aaron, Update, IOO, WFS measurements
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Fri Sep 13 10:36:03 2019, aaron, Update, IOO, WFS measurements
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Mon Sep 16 12:38:59 2019, aaron, Update, IOO, WFS measurements
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Thu Oct 3 11:38:35 2019, aaron, Update, IOO, WFS measurements
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Mon Sep 30 13:20:55 2019, aaron, Update, IOO, shot noise measurement
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Fri Sep 13 10:53:40 2019, aaron, Update, IOO, WFS loop measurements
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Mon Sep 16 05:08:04 2019, rana, Update, IOO, WFS loop measurements
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Mon Sep 16 11:55:58 2019, rika, Update, IOO, WFS loop measurements
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Tue Sep 17 09:41:48 2019, gautam, Update, IOO, WFS loop measurements
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Tue Sep 17 10:47:44 2019, rika, Update, IOO, WFS loop measurements
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Wed Sep 18 14:45:52 2019, rika, Update, IOO, WFS loop measurements
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Tue Sep 17 10:34:48 2019, aaron, Update, IOO, WFS loop measurements
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Tue Oct 8 20:39:42 2019, aaron, Update, IOO, WFS loop measurements
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Wed Oct 9 09:37:28 2019, aaron, Update, IOO, WFS loop measurements
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Message ID: 14888
Entry time: Tue Sep 17 10:47:44 2019
In reply to: 14880
Reply to this: 14896
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| Author: |
rika |
| Type: |
Update |
| Category: |
IOO |
| Subject: |
WFS loop measurements |
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[aaron, rika]
Once stop the auto-locker and realigned to make beam to get into QPD again.
After we lock MC, we took TFs from suspension MC1/2/3 PIT/YAW to WFS1/2 PIT/YAW.
-----
Diagnotics test tools
range: 7 Hz to 50 Hz
avarage=61
Column 0: WFS2_PIT 1: WFS2_YAW 2:WFS1_PIT 3: WFS1_YAW 4: TRANCE_PIT 5:TRANCE_YAW
-----
I'm wondering weather the MC1data I saved is correct, becouse I found the channel was changed when I exported MC2 data. So I took MC1 data again.
We got all data for TFs already. Each data is devided to real part and imaginary part. Then we are arranging the datas to obtain TFs.
TF of MC2 is attachiment 1. So tomorrow, I make other TF.
| Quote: |
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[rika, aaron]
We aligned optics of WFS as it was. Now auto-locker is working to lock MC.
But it still doesn't lock. We notice that the c1lsc machine doesn't work. So we run rebootCILSC.sh.
Now we reset the hardware!
17:11
After reset, auto locking didn't work well. Gautum and Aaron reboot slow c1ioo. Then it works, and Gautam returned the MC to a good alignment.
We found the beam is not in the center of the QPD, we (turned off the MC autolocker and MC loop, then) realigned to make beam to get in to the QPD center. Afterwards we start auto locking.
With the WFS on, the maximum MC transmission we observe is 14,700 counts; after the transmission level stabilizes (MC_TRANS pit and yaw brought to 0), the MC transmission is only 14,200 counts. Perhaps the MC_TRANS QPD offsets need adjustment. We relieve the WFS servo of its DC offsets. This is the configuration we'll use for WFS loop measurements this week.
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