分布式弱反射光纤光栅水听器线列阵指向性分析与测试

顾宏灿; 王佳蓓; 王鹏; 祝苗; 姚高飞; 黄俊斌; 吕加庆

doi:10.12382/bgxb.2024.0792

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分布式弱反射光纤光栅水听器线列阵指向性分析与测试

更新时间：2025-10-21

- 分布式弱反射光纤光栅水听器线列阵指向性分析与测试
- Directivity Analysis and Test of a Distributed WRFBG Hydrophone Linear Array
- 兵工学报 2025年46卷第9期页码：240792
- 作者机构：
  
  1. 海军工程大学,湖北武汉 430033
  2. 91321 部队, 浙江义乌 322000
  3. 91640 部队, 广东湛江 524057
- 作者简介：
  
  * d22382601@nue.edu.cn
- 基金信息：
  
  湖北省重大攻关项目(2023BAA013)
- DOI：10.12382/bgxb.2024.0792
  中图分类号：
- 收稿：2024-09-04，
  
  网络出版：2025-09-24，
  
  纸质出版：2025-09-30
- 稿件说明：
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顾宏灿, 王佳蓓, 王鹏, 等. 分布式弱反射光纤光栅水听器线列阵指向性分析与测试[J]. 兵工学报, 2025,46(9):240792.

Hongcan GU, Jiabei WANG, Peng WANG, et al. Directivity Analysis and Test of a Distributed WRFBG Hydrophone Linear Array[J]. Acta Armamentarii, 2025, 46(9): 240792.
顾宏灿, 王佳蓓, 王鹏, 等. 分布式弱反射光纤光栅水听器线列阵指向性分析与测试[J]. 兵工学报, 2025,46(9):240792. DOI： 10.12382/bgxb.2024.0792.

Hongcan GU, Jiabei WANG, Peng WANG, et al. Directivity Analysis and Test of a Distributed WRFBG Hydrophone Linear Array[J]. Acta Armamentarii, 2025, 46(9): 240792. DOI： 10.12382/bgxb.2024.0792.

摘要

为提高光纤水听器线阵列的目标探测性能

设计一种连续螺旋缠绕增敏的柔顺型分布式弱反射光纤光栅水听器线列阵。分析远场平面波的水声作用机理

根据弹性力学理论建立水听器声压相位灵敏度模型;光纤连续螺旋缠绕于高密度聚乙烯材料中空柱体

若光栅间光纤长度为10m

水听器单元的灵敏度为-133.99dB(re 1 rad/μPa)

搭建6元分布式弱反射光纤光栅水听器线列阵消声水池实验系统。实验结果表明

水听器平均声压灵敏度为-136.00dB

单元指向性测试曲线与理论曲线整体趋势一致

波束响应测试曲线与理论曲线在最大值对应方位、波束宽度方面完全吻合。

Abstract

A compliant distributed weak reflection fiber Bragg grating (WRFBG) hydrophone linear array with continuous spiral winding and sensitization is devised to improve the target detection performance of fiber optic hydrophone linear array.Based on the theory of elasticity

a hydrophone acoustic pressure phase sensitivity model is developed by continuously and spirally winding the optical fiber around a hollow cylinder made of high density polyethylene.If the length of optical fiber between gratings is 10m

the sensitivity of hydrophone unit is -133.99dB (re 1 rad/μPa).An anechoic water tank experimental facility is constructed for a six-element distributed WRFBG hydrophone linear array.The experimental results reveale that the average acoustic pressure sensitivity of hydrophone is -136.00dB.The overall tendency of unit directivity test curve is consistent with that of the theoretical curve.The test curves of beam response are in perfect agreement with the theoretical curves in terms of azimuth and beam width for the maximums.

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references

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