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40m
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| 40m Log |
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 Tue Jun 12 02:07:42 2012, Jenne, Update, SUS, PRM oplevs left off
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 Tue Jun 12 16:33:32 2012, steve, Update, SUS, PRM oplevs servo ON for confirmation
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Tue Jun 12 17:04:55 2012, steve, Update, SUS, PRM oplevs servo is still bad 
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Tue Jul 10 17:47:55 2012, yuta, Update, SUS, PRM oplevs fixed
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Mon Aug 6 07:59:33 2012, steve, Update, SUS, PRM oplevs servo is still bad
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Mon Aug 6 23:05:22 2012, Jenne, Update, SUS, PRM oplevs servo is fine
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Mon Oct 15 08:08:33 2012, steve, Update, SUS, PRM damping restored
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Message ID: 7544
Entry time: Mon Oct 15 08:08:33 2012
In reply to: 7087
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| Author: |
steve |
| Type: |
Update |
| Category: |
SUS |
| Subject: |
PRM damping restored |
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Yuta claims he fixed the PRM oplev by centering it the other day, but no one has left it on and watched it for a long while, to make sure it's okay. We watched it now for ~2 min, and it was good, but we're leaving the oplevs off anyway for the night. Tomorrow we should restore PRM (it's currently restored), turn on the oplevs, and let it sit to make sure it doesn't go crazy.
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PRM oplev servo was turned on with PITgain 0.5 and YAWgain -0.7
Note: gain settings were PIT 1.0 and YAW --0.5 on Jun 1, 2012 that I measured Feb 23, 2012
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It is still oscillating. Gains turned down to zero.
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Earthquake test our suspensions PRM damping restored. Oplev servo gains turned to zero.
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The PRM damping restored. Oplev PIT gain 0.15 and YAW gain -0.3 turned to zero. |