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Proceedings Paper

A fiber-optic flexural disk microphone of high sensitivity
Author(s): Ran Tao; Xuqiang Wu; Qifa Zhang; Sheng Huang; Gang Zhang; Benli Yu
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Paper Abstract

A fiber-optic flexural disk microphone is developed to detect acoustic signals in the air. It consists of a Mach-Zehnder interferometer with an optimized sensing arm of 7.93 m. The disk’s resonance frequencies and their influence on the microphone’s sensitivity are investigated. The microphone’s frequency response is measured in the frequency range from 100 Hz to 5 kHz and the average phase sensitivity is about -120.7 dB re 1rad/μPa.

Paper Details

Date Published: 13 December 2012
PDF: 7 pages
Proc. SPIE 8561, Advanced Sensor Systems and Applications V, 85610D (13 December 2012); doi: 10.1117/12.2000607
Show Author Affiliations
Ran Tao, Anhui Univ. (China)
Xuqiang Wu, Anhui Univ. (China)
Qifa Zhang, Anhui Univ. (China)
Sheng Huang, Anhui Univ. (China)
Gang Zhang, Anhui Univ. (China)
Benli Yu, Anhui 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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