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
来源：
FOURTH ASIA PACIFIC OPTICAL SENSORS CONFERENCE | 2013年 / 8924卷
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.
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页数：4
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