A low-frequency torsion pendulum with interferometric readout

被引：8

作者：

Ross, M. P. ^{[1
]}

Venkateswara, K. ^{[1
]}

Hagedorn, C. A. ^{[1
]}

Leupold, C. J. ^{[2
]}

Forsyth, P. W. F. ^{[3
]}

Wegner, J. D. ^{[1
]}

Shaw, E. A. ^{[1
]}

Lee, J. G. ^{[1
]}

Gundlach, J. H. ^{[1
]}

机构：

[1] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA

[2] Univ Washington, Bothell, WA 98011 USA

[3] Australian Natl Univ, Coll Sci, Ctr Gravitat Astrophys, OzGrav ANU, Acton, ACT 2601, Australia

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2021年 / 92卷 / 05期

关键词：

Gravity waves - Michelson interferometers - Pendulums - Torsional stress;

D O I：

10.1063/5.0043098

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 similar to 200 prad/root Hz between 0.2 and 30 Hz and similar to 10 prad/root 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. Published under license by AIP Publishing.

引用

页数：6