Analysis of free vibration characteristics of bar-type fiber optic hydrophone probe

LIU Sheng-chun~1; HAO Yi-chang~1; JIANG De-sheng~1; XIE Guan-mo~2

doi:10.13873/j.1000-97872006.07.009

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Analysis of free vibration characteristics of bar-type fiber optic hydrophone probe

更新时间：2025-09-11

- Analysis of free vibration characteristics of bar-type fiber optic hydrophone probe
- Issue 7, Pages: 27-29(2006)
- 作者机构：
  
  1. 武汉理工大学光纤传感技术研究中心
  2. 武汉理工大学理学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872006.07.009
  CLC： TB565.1
- Published：2006
- 稿件说明：
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[1]刘胜春,郝义昶,姜德生,谢官模.直杆式光纤水听器探头动力特性分析[J].传感器与微系统,2006(07):27-29.

LIU Sheng-chun~1, HAO Yi-chang~1, JIANG De-sheng~1, et al. Analysis of free vibration characteristics of bar-type fiber optic hydrophone probe[J]. 2006, (7): 27-29.
[1]刘胜春,郝义昶,姜德生,谢官模.直杆式光纤水听器探头动力特性分析[J].传感器与微系统,2006(07):27-29. DOI： 10.13873/j.1000-97872006.07.009.

LIU Sheng-chun~1, HAO Yi-chang~1, JIANG De-sheng~1, et al. Analysis of free vibration characteristics of bar-type fiber optic hydrophone probe[J]. 2006, (7): 27-29. DOI： 10.13873/j.1000-97872006.07.009.

摘要

光纤水听器（FOH）探头技术是FOH系统的基础

探头的动力特性直接影响水听器动态响应的幅频特性、响应范围和带宽。分析了直杆式FOH探头的自由振动特性

用Rayle igh法导出了其基频计算的理论公式

全面地分析了FOH探头基频的影响因素

并利用ANSYS对其前几阶固有频率和模态进行了模拟分析。基频的数值模拟结果与理论计算结果比较吻合

最大偏差为5.05%。基频理论计算公式对水听器探头的参数优化设计具有指导意义。

Abstract

The basis of fiber optic hydrophone（FOH） system is FOH probe

the probe natural frequencies and modes have direct influences on the dynamic response characteristics of the hydrophone

such as amplitude-frequency curve features

response range and bandwidth.The free vibration characteristics of bar-type FOH probe are analyzed.The fundamental frequency is derived from Rayleigh method

the influences on fundamental frequency are analyzed comprehensively.ANSYS simulation is employed to analyze the natural frequencies and modes of the FOH probe

results are agree well with theoretical calculation

the error is ±5.05 %.

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references

全光光纤水听器系统海上试验 [J]. 倪明,李秀林,张仁和,胡永明,孟洲,熊水东,刘阳. 声学学报 . 2004(06)

光纤水听器的原理与应用 [J]. 张仁和,倪明. 物理 . 2004(07)

光纤水听器探头技术研究 [J]. 倪明,胡永明,孟洲,张仁和. 应用声学 . 2003(02)

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