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Proceedings Paper

A new type fiber-optic accelerometer
Author(s): Chang Yang; Hongpu Zhou; Min Zhang; Shangran Xie; Fajie Duan; Yanbiao Liao
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Paper Abstract

A novel all-metal fiber-optic accelerometer with Michelson interferometric configuration is proposed, using mass blocks and flexible reed structure. The sensing arm is configured to directly transform the applied acceleration to fiber deformation in axial direction, which increases the acceleration sensitivity of the sensor. The axis of the reference arm is set orthogonal to that of the sensing arm in order to make it insensitive to applied acceleration, and thus decrease the phase noise of the sensor. Using the flexible reed of 1mm thick and the mass block of 208g, an acceleration sensitivity of 556.7rad/g(54.9dB) is achieved by this structure. In the case of 10-4 rad/rt Hz(100Hz)noise floor, the minimum detectable acceleration is 200ng/rt Hz.

Paper Details

Date Published: 30 November 2012
PDF: 6 pages
Proc. SPIE 8561, Advanced Sensor Systems and Applications V, 856113 (30 November 2012); doi: 10.1117/12.999531
Show Author Affiliations
Chang Yang, Tianjin Univ. (China)
Hongpu Zhou, Tsinghua Univ. (China)
Min Zhang, Tianjin Univ. (China)
Shangran Xie, Tsinghua Univ. (China)
Fajie Duan, Tianjin Univ. (China)
Yanbiao Liao, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 8561:
Advanced Sensor Systems and Applications V
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan, Editor(s)

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