Transmission Monitor's Vibration Isolation Stage: preparation (TMS-VIS)

• With a fixed stage.
• TMS = BRT (beam reducing telescope) + GPT (Gouy phase telescope)

Links to knowledge

• https://gwpo.nao.ac.jp/wiki/ATCstandalone

• Ref: SR Suspension Diagonalization Matrices (by Mark)

• Ref: A Study of Low Frequency Vibration Isolation System for Large Scale Gravitational Wave Detectors (by Sekiguchi)

LVDTs

Be careful! The pin assignment in the Dsub shell or the signal phases would be different from the below for #1 and #2, as I needed to once detach the pins when I installed the LVDTs (Akutsu).

• Coil inspection report (JGW-T1808464)

• http://klog.icrr.u-tokyo.ac.jp/osl/?r=5046: note: LVDT1's coil wires were broken.

• http://klog.icrr.u-tokyo.ac.jp/osl/?r=5022

• http://klog.icrr.u-tokyo.ac.jp/osl/?r=5106: note: LVDT6's coil wires were broken.

Actuator coils

Be careful! The pin assignment in the Dsub shell or the signal phases would be different from the below, as I needed to once detach the pins when I installed the coils (Akutsu).

• Coil inspection report (JGW-T1808465)

• http://klog.icrr.u-tokyo.ac.jp/osl/?r=5014

• Tanioka-kun's efforts in 2017

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=3323

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=3103

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=3009

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=2994

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=2823

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=2821

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=2820

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=2803

Geophones

• Data sheets of the geophones

• http://klog.icrr.u-tokyo.ac.jp/osl/?r=5024

Cabling

• LVDT/Act - (coil wires) - Dsub9M - (Dsub9F - PTFE 2m - Dsub9F) - Dsub9M flange - Flipper cable - Dsub Cable
• Geophone - (MIL C 26482 - PTFE 0.5m - Dsub9M) - (Dsub9F - 1.5m PTFE - Dsub9F) - Dsub9M flange - Flipper cable - Dsub Cable

• PTFE cables

Task list

Signal Assign