Diaphragm-based Fiber Optic Fabry-Perot Hydrophone with Hydrostatic Pressure Compensation

被引:1
|
作者
Wang, Zhaogang [1 ]
Zhang, Wentao [1 ]
Li, Fang [1 ]
机构
[1] Chinese Acad Sci, Optoelect Syst Lab, Inst Semicond, Beijing 100083, Peoples R China
关键词
fiber optic hydrophone; Fabry-Perot; hydrostatic pressure compensation; polyimide diaphragm; SENSOR;
D O I
10.1117/12.2029456
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
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.
引用
收藏
页数:4
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