Type B local control systems and displacement sensing of the suspended optic - 22nd F2F

Document #:

JGW-G1910095-v2

Document type:

G

Submitted by:

Tak Lun Terrence Tsang

Updated by:

Tak Lun Terrence Tsang

Document Created:

19 Apr 2019, 08:47

Contents Revised:

19 Apr 2019, 13:54

Metadata Revised:

03 May 2021, 23:44

Abstract:

Please check for JGW-T2112874 for a newer version of the optical lever sensing matrix https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12874.

We modified the suspension model to have a new control topology that resembles a classical PID control without proportional control. We installed the displacement sensing mechanism for the suspended optic and have diagonalized the signal to a satisfying level.

Files in Document:

• KAGRA VIS Type B Local Control and Optical Lever (1).pdf (2.1 MB)

Topics:

• Activity:KAGRA
• Management:Collaboration meeting:KAGRA F2F
• Detector:Suspensions

Authors:

• Tak Lun Terrence Tsang

Related Documents:

• JGW-T2112874: Sensing Matrices for Optical Levers (OpLev) of the KAGRA Main Optics

Referenced by:

• JGW-T1910189: BS and SR TM optical lever (oplev) diagonalization matrix

Approved for use in external presentations:

Unapproved