Optomechanical reference accelerometer

O. Gerberding; F. Guzmán Cervantes; J. Melcher; J. R. Pratt; J. M. Taylor

doi:10.1088/0026-1394/52/5/654

Optomechanical reference accelerometer

O. Gerberding, F. Guzmán Cervantes, J. Melcher, J. R. Pratt, J. M. Taylor

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

We present an optomechanical accelerometer with high dynamic range, >high bandwidth and readout noise levels below 7.8 × 10^-5 m s^-2√ Hz. The straightforward assembly and low cost of our device makes it a prime candidate for on-site reference calibrations and autonomous navigation. We present experimental data taken with a vacuum sealed, portable prototype and deduce the achieved bias stability and the accuracy of the sensitivity. Additionally, we present a comprehensive model of the device physics that we use to analyze the fundamental noise sources and accuracy limitations of such devices.

Original language	English (US)
Pages (from-to)	654-665
Number of pages	12
Journal	Metrologia
Volume	52
Issue number	5
DOIs	https://doi.org/10.1088/0026-1394/52/5/654
State	Published - Sep 8 2015
Externally published	Yes

Keywords

accelerometer
inertial sensing
interferometry
optomechanics

ASJC Scopus subject areas

Engineering(all)

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abstract = "We present an optomechanical accelerometer with high dynamic range, >high bandwidth and readout noise levels below 7.8 × 10-5 m s-2√ Hz. The straightforward assembly and low cost of our device makes it a prime candidate for on-site reference calibrations and autonomous navigation. We present experimental data taken with a vacuum sealed, portable prototype and deduce the achieved bias stability and the accuracy of the sensitivity. Additionally, we present a comprehensive model of the device physics that we use to analyze the fundamental noise sources and accuracy limitations of such devices.",

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AU - Gerberding, O.

AU - Guzmán Cervantes, F.

AU - Melcher, J.

AU - Pratt, J. R.

AU - Taylor, J. M.

PY - 2015/9/8

Y1 - 2015/9/8

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AB - We present an optomechanical accelerometer with high dynamic range, >high bandwidth and readout noise levels below 7.8 × 10-5 m s-2√ Hz. The straightforward assembly and low cost of our device makes it a prime candidate for on-site reference calibrations and autonomous navigation. We present experimental data taken with a vacuum sealed, portable prototype and deduce the achieved bias stability and the accuracy of the sensitivity. Additionally, we present a comprehensive model of the device physics that we use to analyze the fundamental noise sources and accuracy limitations of such devices.

KW - accelerometer

KW - inertial sensing

KW - interferometry

KW - optomechanics

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