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Entry  Tue Mar 5 06:27:14 2013, yuta, Update, LSC, intra-cavity power dependence on mirror misalignment PRM_PIT_20130305a.pngPRM_YAW_20130305b.pngITMX_YAW_20130305.pngITMY_YAW_20130305.png
    Reply  Tue Mar 5 23:00:08 2013, yuta, Update, LSC, Yarm and PRC g-factor from misalignment measurement ITMY_YAW_20130305_DC.pngPRM_PIT_20130305a_DC.pngPRM_YAW_20130305b_DC.png
       Reply  Tue Mar 5 23:37:11 2013, yuta, Update, SUS, PRM angular motion spectra PRMangularmotion.png
    Reply  Wed Mar 6 02:46:20 2013, Manasa, Update, LSC, PRMI locking for g-factor measurement POPDCspec_PRMIlocked.png
       Reply  Wed Mar 6 09:44:29 2013, Koji, Update, LSC, PRMI locking for g-factor measurement 
       Reply  Fri Mar 8 21:00:05 2013, Manasa, Update, PSL, PMC fixed 
Message ID: 8236     Entry time: Tue Mar 5 23:37:11 2013     In reply to: 8235
Author: yuta 
Type: Update 
Category: SUS 
Subject: PRM angular motion spectra 

I measured PRM angular motion spectra (in daytime today).
PRM angular motion is ~ 10 urad in RMS when undamped and ~1 urad in RMS when damped.
If PR2/PR3 angular motions are something like this, and their motion are not enhanced when PRC is locked, measured g-factor of PRC looks OK. But considering the error we have, maybe we are not OK yet. We need calculation.

PRMangularmotion.png

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