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A vacuum-compatible cylindrical inertial rotation sensor with picoradian sensitivity

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...

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Published in:Review of scientific instruments 2023-09, Vol.94 (9)
Main Authors: Ross, M. P., van Dongen, J., Huang, Y., Zhou, H., Chowdhury, Y., Apple, S. K., Mow-Lowry, C. M., Mitchell, A. L., Holland, N. A., Lantz, B., Bonilla, E., Engl, A., Pele, A., Griffith, D., Sanchez, E., Shaw, E. A., Gettings, C., Gundlach, J.
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container_issue 9
container_start_page
container_title Review of scientific instruments
container_volume 94
creator Ross, M. P.
van Dongen, J.
Huang, Y.
Zhou, H.
Chowdhury, Y.
Apple, S. K.
Mow-Lowry, C. M.
Mitchell, A. L.
Holland, N. A.
Lantz, B.
Bonilla, E.
Engl, A.
Pele, A.
Griffith, D.
Sanchez, E.
Shaw, E. A.
Gettings, C.
Gundlach, J.
description 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.
doi_str_mv 10.1063/5.0167283
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source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list); American Institute of Physics(アメリカ物理学協会)
subjects Inertial sensing devices
Noise levels
Rotation
Scientific apparatus & instruments
title A vacuum-compatible cylindrical inertial rotation sensor with picoradian sensitivity
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