Reports until 17:19, Thursday 25 February 2016
H1 ISC (ISC)
hang.yu@LIGO.ORG - posted 17:19, Thursday 25 February 2016 - last comment - 19:54, Thursday 25 February 2016(25735)
sensing matrix with DRMI locked only

Jenne, Sheila, Hang

We wrote a piece of code to automate the measurement of ASC sensing matrix (using method described in alog 25648). It is available at

/opt/rtcds/userapps/release/isc/h1/scripts/SenMtrx

This is a complementary code to the existing one. The new one does not connect to the nds server but only uses ezca, so it may be more stable. On the other hand it can only do elementary measurement right now.

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We used this code to measure the sensing matrix with only DRMI locked. The values are

Optic WFS ct/ct W/rad
PR3 REFL_9A_I -3.2e-1 -6.1e+1
PR3 REFL_45A_I 1.2e-1 2.3e+1
PR3 REFL_9B_I -2.2e-1 -4.1e+1
PR3 REFL_45B_I 9.5e-2 1.8e+1
PR2 REFL_9A_I -1.1e0 -2.1e+2
PR2 REFL_45A_I 4.8e-1 9.1e+1
PR2 REFL_9B_I -7.8e-1 -1.5e+2
PR2 REFL_45B_I 3.4e-1 6.5e+1
IM4 REFL_9A_I -1.5e-1 -2.8e+1
IM4 REFL_45A_I 4.8e-2 9.1e0
IM4 REFL_9B_I 9.5e-2 1.8e+1
IM4 REFL_45B_I -4.6e-2 -8.6e0
SR3 AS_36A_I -1.7e-2 -1.6e0
SR3 AS_36A_I -1.1e-2 -1.1e0
Comments related to this report
kiwamu.izumi@LIGO.ORG - 18:54, Thursday 25 February 2016 (25736)

Why are the signals from PR3 so weak and weaker than those from PR2 ? Maybe typos ?

hang.yu@LIGO.ORG - 19:54, Thursday 25 February 2016 (25738)

Typo fixed