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A vacuum-compatible cylindrical inertial rotation sensor with picoradian sensitivity

  • M. P. Ross*
  • , J. van Dongen
  • , Y. Huang
  • , H. Zhou
  • , Y. Chowdhury
  • , S. K. Apple
  • , C. M. Mow-Lowry
  • , A. L. Mitchell
  • , N. A. Holland
  • , B. Lantz
  • , E. Bonilla
  • , A. Engl
  • , A. Pele
  • , D. Griffith
  • , E. Sanchez
  • , E. A. Shaw
  • , C. Gettings
  • , J. Gundlach
  • *Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

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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 ∼ 5 prad / Hz . The sensor is entirely made of vacuum compatible materials, and the center of mass can be adjusted remotely.

Original languageEnglish
Article number094503
Pages (from-to)1-4
Number of pages4
JournalReview of Scientific Instruments
Volume94
Issue number9
DOIs
Publication statusPublished - 21 Sept 2023

Bibliographical note

Published online: September 22 2023.

Publisher Copyright:
© 2023 Author(s).

Funding

Participation from the University of Washington, Seattle, was supported by funding from the NSF under Award Nos. PHY-1607385, PHY-1607391, PHY-1912380, and PHY-1912514. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 865816).

FundersFunder number
National Science FoundationPHY-1607391, PHY-1912380, PHY-1607385, PHY-1912514
National Science Foundation
University of Washington
Horizon 2020 Framework Programme865816
Horizon 2020 Framework Programme
European Research Council

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