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Entry  Thu Jan 20 17:34:07 2022, Koji, Update, BHD, V6-704/705 Mirror now @Downs PXL_20220120_225248265_2.jpgPXL_20220120_225309361_2.jpg
    Reply  Fri Jan 21 14:51:00 2022, Koji, Update, BHD, V6-704/705 Mirror now @Downs M1.PNGM1_30mm.PNGM2.PNGM2_30mm.PNG
       Reply  Tue Feb 1 20:16:09 2022, Tega, Update, BHD, PR2 candidate mirror analysis PR2_M2_data.pngPR2_M2_recon_FoV_10mm.pngPR2_M2_residual_FoV_10mm.png
Message ID: 16636     Entry time: Tue Feb 1 20:16:09 2022     In reply to: 16612
Author: Tega 
Type: Update 
Category: BHD 
Subject: PR2 candidate mirror analysis 

git repo: git@git.ligo.org:tega-edo/charmirrormap.git

The analysis code takes in a set of raw images, 10 in our case,  for each mirror and calculates the zernike aberration coefficients for each image, then takes their average. This average value is used to reconstruct the mirror height map.  Finally, the residual error between the reconstructed image and the raw data is calculated.

We repeat the analysis for different field of views (FoV) namely 10mm, 20mm, 30mm, 40mm and 46.5mm and save the results in the output folder of the repo.

The analysis output for a 10mm FoV aperture at the mirror center is shown in the attachement. These three images show the input data, the reconstructed mirror surface map and the residual error.

Attachment 1: PR2_M2_data.png  583 kB  | Hide | Hide all
Attachment 2: PR2_M2_recon_FoV_10mm.png  85 kB  | Hide | Hide all
Attachment 3: PR2_M2_residual_FoV_10mm.png  154 kB  | Hide | Hide all
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