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Proceedings Paper

Diaphragm-based fiber optic Fabry-Perot hydrophone with hydrostatic pressure compensation
Author(s): Zhaogang Wang; Wentao Zhang; Fang Li
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Paper Abstract

A fiber optic Fabry-Perot (FP) hydrophone with hydrostatic pressure compensation was demonstrated. A polyimide (PI) diaphragm attached on the end of an Acrylonitrile Butadiene Styrene (ABS) tube was used as the sensing element. A pair of grooves was designed in an inner ABS tube to connect the Fabry-Perot cavity with the outside environment, which made the hydrophone hydrostatic pressure compensated. The operation principle, design and testing of polyimide diaphragm-based sensor were described. Experiment results show that it has not only high stability in different hydrostatic pressures, but also flat frequency response of about 158 ±3 dB within 300-3000 Hz.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89241B (15 October 2013); doi: 10.1117/12.2029456
Show Author Affiliations
Zhaogang Wang, Institute of Semiconductors (China)
Wentao Zhang, Institute of Semiconductors (China)
Fang Li, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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