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
Entry  Tue Oct 25 01:14:15 2011, Suresh, Update, IOO, C1IOO model modified to include new WFS lockin structure c1ioo20111025.png
    Reply  Tue Oct 25 16:24:58 2011, Suresh, Update, IOO, C1IOO model modified to include new WFS lockin structure 
       Reply  Tue Oct 25 18:50:22 2011, Suresh, Update, IOO, C1IOO model modified to include new WFS lockin structure 
          Reply  Wed Jun 19 15:07:20 2013, rana, Update, IOO, WFS debugging 
             Reply  Thu Jun 20 15:15:39 2013, rana, Update, IOO, WFS debugging Untitled.png
                Reply  Thu Jun 20 20:46:16 2013, gautam, Update, IOO, WFS debugging-QPD debugging MC2_QPD-map.png
                Reply  Tue Jul 9 20:09:53 2013, Koji, Update, IOO, WFS debugging 
                Reply  Sun Oct 6 23:43:07 2013, rana, Update, IOO, WFS debugging 
Message ID: 5735     Entry time: Tue Oct 25 16:24:58 2011     In reply to: 5732     Reply to this: 5737
Author: Suresh 
Type: Update 
Category: IOO 
Subject: C1IOO model modified to include new WFS lockin structure 

I forgot to mention another change I made to the C1IOO model.

The location of the WFS global switch and the WFS_GAIN have been shifted. The switch now cuts off signals just before the WFS servo filters.

I have also added some test points just before the switch and the so that we can monitor the WFS error signals which would be unaffected even if the WFS_GAIN is changed..

 

 

Quote:

A while back we faced the problem that when we use several lockins to excite the MC degrees of freedom, their relative phase was not known.  The solution suggested was to use one oscillator and several demodulators.

I have now modified the C1IOO.mdl so that this can be implemented.  Previously we were using the MC_ASS lockins for WFS work.  I have not separated the WFS and MC_ASS structures. 

Other jobs to be done in this context are:

1) The medm screens associated with WFS lockins need to be updated with new channel names.

2) The scripts associated with both MC_ASS decentering and WFS ouput matrix determination have to be updated with the new channel names.

3) I also deleted all mdem screens in the $screens$/c1ioo/ directory after copying them to $screens$/c1ioo/bak/.  After installing the new c1ioo model $screens$/c1ioo model now contains just the automatically created screens.  All other user made screens should to into $screens$/c1ioo/master/ directory

This is a pic of the new c1ioo model:

 

 c1ioo20111025.png

 

 

ELOG V3.1.3-