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Entry  Fri Jun 14 17:15:45 2013, Manasa, Update, Green Locking, c1als model edited 
    Reply  Wed Jun 26 11:32:11 2013, Manasa, Update, Green Locking, c1als model edited 
       Reply  Wed Jun 26 23:32:15 2013, Manasa, Update, Green Locking, c1als model edited c1als_mdl.png
          Reply  Thu Jun 27 02:44:33 2013, rana, Update, Green Locking, c1als model edited 
             Reply  Thu Jun 27 17:49:17 2013, manasa, Update, Green Locking, c1als model edited ALS_PHASEcalib.pngBEATX_FINE.png
Message ID: 8769     Entry time: Thu Jun 27 17:49:17 2013     In reply to: 8761
Author: manasa 
Type: Update 
Category: Green Locking 
Subject: c1als model edited 

Quote:

 Could be that this is OK, but it doesn't yet make sense to me. Can you please explain in words how this manages to apply the calibration rather than just add an extra gain to the phase tracking loop?

The calibration is applied by adding an extra gain. But, I missed the point that I should be doing this outside the phase-tracking loop....my BAD .

So I modified the model such that the calibration is done without disturbing the phase tracking loop.

Right now, epics input 'PHASE_OUT_CALIB' accepts the calibration and we get the calibrated phase tracker output converted from deg to Hz at 'PHASE_OUT_HZ'.  I have also made it a DAQ channel to be used with dataviewer and dtt.

medm screens have been modified to accommodate these additions to the phase tracker screen. I used Yuta's phase tracker calibration data in elog to set PHASE_OUT_CALIB in the medm screens.

ALS_PHASEcalib.png

BEATX_FINE.png

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