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Entry  Sun Mar 8 03:27:48 2015, Jenne, Update, LSC, Error signal blending for CARM/DARM transitions 
    Reply  Sun Mar 8 04:04:19 2015, Jenne, Update, LSC, Error signal blending for CARM/DARM transitions 
       Reply  Sun Mar 8 13:51:41 2015, rana, Update, LSC, Error signal blending for CARM/DARM transitions 
          Reply  Mon Mar 9 14:14:32 2015, Jenne, Update, LSC, Error signal blending for CARM/DARM transitions First-ever_RFonly_lock_7March2015.pngSecond-ever_RFonly_lock_7March2015.png
Message ID: 11121     Entry time: Sun Mar 8 13:51:41 2015     In reply to: 11120     Reply to this: 11122
Author: rana 
Type: Update 
Category: LSC 
Subject: Error signal blending for CARM/DARM transitions 

According to the official rules, we only need 8 seconds to declare it "locked".

I wonder if the double cavity pole compensation filter for CARM was on for all the attempts yesterday? IF it looks like it will not saturate, it would be more stable to have the whitening on for REFL11 / AS55. Since on Friday, I set the REFL165 demod phase just by minimizing the MICH control signal with the arms on resonance, we ought to check out the PRMI degeneracy with the ETMs misaligned.

Speaking of signal mixing: Although we weren't able to get the carrier term cancelled in the 3*f1 signals by the relative mod phase method, I wonder if we can do it by mixing the 3*f1 and 3*f2 signals in the input matrix. Might help to keep the PRMI more stable, if that's an issue.


P.S. I have done some scripts directory / SVN cleanup. Adding some directories that were not in (like lockloss) and then removing stuff from the repo using 'svn rm --keep-local  filenames' for the image and data files.

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