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基于光纤碟型加速度传感单元的三维柱形矢量水听器

A Three-Dimentional Vector Hydrophone Based on Fiber-Optic Flexural Disk Accelerometer

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摘要

光纤矢量水听器(FOVH)以其低频灵敏度高,动态范围大,抗电磁干扰,易轻型化等诸多优势,成为新型矢量水听器的一个发展热点。针对线阵列应用,开展了光纤干涉碟型矢量水听器的仿真分析和研制工作。有限元分析采用光纤等效层方法(FLEM)和光纤细化结构方法(FLDM)分别对系统的性能进行预报,研制出了光纤碟型矢量水听器样品,并进行了全面的测试。实验结果表明,所研制的矢量水听器样品在100~1000 Hz的工作频带内,矢量通道的等效声压相移灵敏度为-182 dB@100 Hz~-158.5 dB@1000 Hz (ref.1 rad/μPa ),串扰小于-30 dB,有良好的矢量性。

Abstract

Fiber-optic vector hydrophone (FOVH), with many advantages including high sensitivity, large dynamic range, intrinsic immunity to electromagnetic interference and light weight, is becoming a hotspot of new-style vector sensors. For array applications, finite element methods and experimental results of the fiberoptical flexural disk vector hydrophone are discussed (FOVH). Two finite element analysis methods are presented to forecast the performance, fiber-layer equivalent method (FLEM) and fiber-layer division method (FLDM), then a fiber-optic flexural disk vector hydrophone is developed and related metrology aspects of measurement is demonstrated. The experimental results are presented that pressure phase sensitivity of the hydrophone is -182 dB@100 Hz~-158.5 dB@1000 Hz (ref.1 rad/μPa ) at the range from 100 Hz to 1000 Hz. The cross-sensitivity is less than -30 dB. It possesses a good directional performance.

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中图分类号:TN253

DOI:10.3788/cjl201542.0305004

所属栏目:光通信

责任编辑:韩峰  信息反馈

基金项目:光纤光学与光通信

收稿日期:2014-08-12

修改稿日期:2014-10-30

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作者单位    点击查看

金梦群:杭州应用声学研究所, 浙江 杭州 310023
张自丽:杭州应用声学研究所, 浙江 杭州 310023
吴国军:杭州应用声学研究所, 浙江 杭州 310023
葛辉良:杭州应用声学研究所, 浙江 杭州 310023

联系人作者:金梦群(jinmq715@163.com)

备注:金梦群(1987—),男,博士研究生,助理工程师,主要从事光纤传感技术方面的研究。

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引用该论文

Jin Mengqun,Zhang Zili,Wu Guojun,Ge Huiliang. A Three-Dimentional Vector Hydrophone Based on Fiber-Optic Flexural Disk Accelerometer[J]. Chinese Journal of Lasers, 2015, 42(3): 0305004

金梦群,张自丽,吴国军,葛辉良. 基于光纤碟型加速度传感单元的三维柱形矢量水听器[J]. 中国激光, 2015, 42(3): 0305004

被引情况

【1】唐波,黄俊斌,顾宏灿,毛欣. DFB 光纤激光水听器预应力理论与实验研究. 中国激光, 2016, 43(3): 305005--1

【2】唐波,黄俊斌,顾宏灿,毛欣. 应用于拖曳线列阵的分布反馈式光纤激光水听器. 中国激光, 2016, 43(5): 505005--1

【3】唐波,黄俊斌,顾宏灿,毛欣. 应用于舷侧阵的分布反馈式光纤激光水听器研究. 中国激光, 2016, 43(8): 810002--1

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