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A low-frequency torsion pendulum with interferometric readout

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Date

2021

Authors

Ross, M P
Venkateswara, Krishna Yethadka
Hagedorn, C. A.
Leupold, C. J.
Forsyth, Perry
Wegner, J. D.
Shaw, E. A.
Lee, J. G.
Gundlach, J. H.

Journal Title

Journal ISSN

Volume Title

Publisher

American Institute of Physics (AIP)

Abstract

We describe a torsion pendulum with a large mass-quadrupole moment and a resonant frequency of 2.8 mHz, whose angle is measured using a Michelson interferometer. The system achieved noise levels of ∼200prad/Hz⎯⎯⎯⎯⎯√ between 0.2 and 30 Hz and ∼10prad/Hz⎯⎯⎯⎯⎯√ above 100 Hz. Such a system can be applied to a broad range of fields from the study of rotational seismic motion and elastogravity signals to gravitational wave observation and tests of gravity.

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Keywords

Citation

URI

http://hdl.handle.net/1885/291020

Collections

ANU Research Publications

Source

Review of Scientific Instruments

Type

Journal article

Book Title

Entity type

Access Statement

Open Access

License Rights

DOI

10.1063/5.0043098

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