40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log  Not logged in ELOG logo
 List  |  Find  |  Login  |  Help 
Entry  Wed Feb 15 05:29:22 2012, kiwamu, Update, LSC, sensing matrix of PRMI 
    Reply  Wed Feb 15 17:15:33 2012, kiwamu, Update, LSC, sensing matrix of PRMI sensingMAT.pngPRMI_Optickle.png
       Reply  Thu Feb 16 07:38:24 2012, Koji, Update, LSC, sensing matrix of PRMI 
          Reply  Fri Feb 17 04:45:48 2012, kiwamu, Update, LSC, sensing matrix of PRMI 
       Reply  Thu Feb 16 13:12:30 2012, rana, Update, LSC, sensing matrix of PRMI 
Message ID: 6293     Entry time: Fri Feb 17 04:45:48 2012     In reply to: 6287
Author: kiwamu 
Type: Update 
Category: LSC 
Subject: sensing matrix of PRMI 

I locked the PRMI with the AS55I and Q combination.

It seems the glitche rate decreased,

but I am not 100 % sure because the rest of the demod signals (i.e. REFL11 and etc) were showing relatively big signals (noise ?), which may cover the glitches.

Also the optical gain of PRCL at AS55I doesn't agree with my expectation based on the obtained sensing matrix (#6283).

It looks too low and lower than the measured sensing matrix by a factor of 50 or so.

I will continue working on this configuration tomorrow and then move on to the SRMI locking as a part of the glitch hunting activity.

Quote from #6287

So why don't you use AS55I and Q for the control of PRMI???

ELOG V3.1.3-