NCal Torque to Force Calculations

Document #:

LIGO-T2100088-v7

Document type:

T - Technical notes

Abstract:

This document describes the effect of torques on the Newtonian Calibrator injections during the third observing run. In general gravitational calibrators cause torques as well as forces on the test mass. These torques can couple into the strain read out and must be taken into accounted for.

git.ligo.org project for this document lives here:
https://git.ligo.org/Calibration/documents/t2100088

Files in Document:

• t2100088_main.pdf (490.2 kB)

Topics:

• Modelling
• Calibration

Authors:

• Michael Ross
• Jeffrey Kissel
• Timesh Mistry
• Laurence Datrier

Keywords:

ncal calibrator rotor torque

Referenced by:

• LIGO-E2000214: aLIGO, CAL, NCAL, Essential Technical Notes