SR3 Oplev setup, calibration and diagonalization

Document #:

JGW-E1808836-v2

Document type:

E

Submitted by:

Enzo Tapia

Updated by:

Enzo Tapia

Document Created:

22 Aug 2018, 20:29

Contents Revised:

22 Aug 2018, 23:17

DB Info Revised:

22 Aug 2018, 23:17

Abstract:

As of 08-22-2018, we are unsuccessful in perfectly diagonalizing the pitch and yaw signal. This could possibly due to some peculiar couplings of the suspension itself instead of the OpLev. We put in OL2EUL matrix so that yaw channel is complete decoupled from pitch motion but pitch is still entangled with 2.5% of yaw.


By Terrence (Tsang Terrence Tak Lun)

Files in Document:

• Calibration (VIS_SR3_OPLEV_LEN_CAL_2018_08_17.pdf, 22.2 kB)
• First report (klog_sr3_oplev_dia.pdf, 27.8 kB)
• Second report (klog_sr3_oplev_diag_08_19_2018.pdf, 24.3 kB)

Topics:

• Detector:Suspensions
• Activity:KAGRA
• Management:Others

Authors:

• Enzo Tapia

Keywords:

Oplev SR3 diagonalization

Notes and Changes:

calibration plots added