A novel interferometrically read out inertial sensor for future gravitational wave detectors

J. V. Van Heijningen*, A. Bertolini, J. F.J. van den Brand

*Corresponding author for this work

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Abstract

We present a novel inertial sensor designed and developed at Nikhef that features an interferometric readout for a horizontal monolithic accelerometer. It is the first time this class of mechanics and this type of optical readout are combined. It will be able to measure 3 × 10-15 m/√HZ displacement levels from 20 Hz onwards. Current results show (self) noise levels of 8×10-15 m/√Hz from 30 Hz onwards. Despite these unprecedented results, the result is worse than the sum of modeled noise contributions. Several possible unmodeled noise sources and possible solutions have been identified.

Original languageEnglish
Title of host publication2018 IEEE Sensors Applications Symposium, SAS 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-5
Number of pages5
Volume2018-January
ISBN (Electronic)9781538620922
DOIs
Publication statusPublished - 11 Apr 2018
Event2018 IEEE Sensors Applications Symposium, SAS 2018 - Seoul, Korea, Republic of
Duration: 12 Mar 201814 Mar 2018

Conference

Conference2018 IEEE Sensors Applications Symposium, SAS 2018
CountryKorea, Republic of
CitySeoul
Period12/03/1814/03/18

Keywords

  • Accelerometer
  • Femtometer
  • Gravitational Waves
  • Interferometric readout
  • Shot noise

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