A vacuum-compatible cylindrical inertial rotation sensor with picoradian sensitivity

20235 citationsJournal Articlegreen Open Access

Authors

M. P. Ross · University of Washington

J. van Dongen · National Institute for Subatomic Physics

Yi Huang · University of Washington

Honglin Zhou · University of Washington

Yuvraj Chowdhury · University of Washington

S. K. Apple · University of Washington

C. M. Mow‐Lowry ·

Abstract

We describe an inertial rotation sensor with a 30-cm cylindrical proof-mass suspended from a pair of 14 μm thick BeCu flexures. The angle between the proof-mass and support structure is measured with a pair of homodyne interferometers, which achieve a noise level of ∼5prad/Hz. The sensor is entirely made of vacuum compatible materials, and the center of mass can be adjusted remotely.

Topics & Keywords

Geophysics and Sensor Technology Seismic Waves and Analysis Mechanical and Optical Resonators

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Review of Scientific Instruments

Volume 94, Issue 9

DOI: 10.1063/5.0167283

Field-Weighted Citation Impact: 1.00