芯轴光纤水听器声压灵敏度有限元频率响应仿真

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英文篇名：FEM Frequency Response Simulation of Acoustic Pressure Sensitivity of Mandrel Fiber-Optic Hydrophones 作者：陈开 ; 王俊 英文作者：CHEN Kai;WANG Jun;The 23rd Research Institute,CETC;Shanghai Engineering Research Center of Optical Transmission and Sensing Technology; 关键词：光纤水听器 ; 声压灵敏度 ; 有限元法 ; 频率响应 英文关键词：fiber-optic hydrophone;;acoustic pressure sensitivity;;finite element method(FEM);;frequency response 中文刊名：GYYD 英文刊名：Optical Fiber & Electric Cable and Their Applications 机构：中国电子科技集团有限公司第二十三研究所;上海光传输与光传感工程技术研究中心; 出版日期：2019-06-11 出版单位：光纤与电缆及其应用技术 年：2019 期：No.274 语种：中文; 页：GYYD201903006 页数：4 CN：03 ISSN：31-1480/TN 分类号：37-40

摘要

芯轴型光纤水听器的声压灵敏度仿真方法直接关系到芯轴型光纤水听器的性能。结合有限元频率响应仿真分析和弹光效应相关理论,突破了传统声压灵敏度仿真分析方法不能进行不同频率声压下的灵敏度计算的限制,建立了不同频率声压环境下光纤水听器的声压灵敏度仿真设计方法。试验结果表明,该仿真方法分析结果与实测结果误差在2 dB以内。
        The acoustic pressure sensitivity simulation method of mandrel fiber-optic hydrophones directly affects the performance of hydrophones. A new simulation method of acoustic pressure sensitivity of fiber-optic hydrophones based on FEM frequency response simulation and strain optic effect is reported. Different from the traditional method, FEM frequency response simulation can calculate acoustic pressure sensitivity in different frequency, which is more close to the experiment data. The precision of this simulation method is proved to be less than 2 dB.

引文

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