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Entry  Mon Sep 20 12:20:31 2021, Paco, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements PRM_PIT_ACT_TF.pdfPRM_YAW_ACT_TF.pdfBS_PIT_ACT_TF.pdfBS_YAW_ACT_TF.pdf
    Reply  Mon Sep 20 14:22:00 2021, rana, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements 
       Reply  Thu Sep 23 15:29:11 2021, Paco, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements BS_PRM_ANG_ACT_TF.pdf
          Reply  Fri Oct 1 14:25:27 2021, yehonathan, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements MICH_PRM_-0.34.pngMICH_PRM_-0.1.png
          Reply  Mon Oct 4 16:00:57 2021, Yehonathan, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements BS_PRM_ANG_ACT_TF_20211004.pdfBS_out_mat_20211004.txtPRM_out_mat_20211004.txt
             Reply  Mon Oct 4 16:10:09 2021, rana, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements 
             Reply  Tue Oct 5 20:04:22 2021, Paco, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements 
                Reply  Wed Oct 6 15:39:29 2021, Anchal, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements 
             Reply  Tue Oct 12 11:32:54 2021, Yehonathan, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements modified_output_matrices_radar_plots.pngnormal_output_matrices_radar_plots.png
                Reply  Tue Oct 12 16:39:52 2021, rana, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements 
                   Reply  Thu Oct 14 13:40:49 2021, Yehonathan, Summary, SUS, PRM and BS Angular Actuation transfer function magnitude measurements BSPRM_Actuation_Radar_plots.pngITM_Actuation_Radar_plots.png
Message ID: 16371     Entry time: Fri Oct 1 14:25:27 2021     In reply to: 16358
Author: yehonathan 
Type: Summary 
Category: SUS 
Subject: PRM and BS Angular Actuation transfer function magnitude measurements 

{Paco, Yehonathan, Hang}

We measured the sensing PRMI sensing matrix. Attachment 1 shows the results, the magnitude of the response is not calibrated. The orthogonality between PRCL and MICH is still bad (see previous measurement for reference).

Hang suggested that since MICH actuation with BS and PRM is not trivial (0.5*BS - 0.34*PRM) and since PRCL is so sensitive to PRM movement there might be a leakage to PRCL when we are actuating on MICH. So there may be a room to tune the PRM coefficient in the MICH output matrix.

Attachment 2 shows the sensing matrix after we changed the MICH->PRM coefficient in the OSC output matrix to -0.1.

It seems like it made things a little bit better but not much and also there is a huge uncertainty in the MICH sensing.

Attachment 1: MICH_PRM_-0.34.png  184 kB  Uploaded Fri Oct 1 15:36:33 2021  | Hide | Hide all
MICH_PRM_-0.34.png
Attachment 2: MICH_PRM_-0.1.png  187 kB  Uploaded Fri Oct 1 15:36:53 2021  | Hide | Hide all
MICH_PRM_-0.1.png
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