Page 110 - 《应用声学》2020年第2期

第 39 卷 第 2 期 Vol. 39, No. 2
2020 年 3 月 Journal of Applied Acoustics March, 2020

⋄ 研究报告 ⋄

基于球形压电陶瓷的耐压水听器

王文龙 1,2 笪良龙 1,2† 尹 航 2

(1 海军潜艇学院 青岛 266199)
(2 海洋科学与技术国家实验室 青岛 266237)

摘要：利用球形压电陶瓷自身所具有的耐压能力，采用径向极化空气背衬压电球壳换能器作为声学接收敏感
元件，设计并制作了一种球形耐压水听器。首先对其低频开路接收灵敏度和谐振频率等声学特性进行了分析
和有限元仿真，然后对其强度和稳定性等耐压性能进行了分析和有限元仿真，最后对其声学性能和耐压能力
进行了测试。测试表明，该球形耐压水听器的直径为 36 mm，工作频段为 50 Hz∼10 kHz，低频接收灵敏度为
−198.4 dB (0 dB=1 V/µPa)，等效自噪声谱级为 46.5 dB@1 kHz，其耐压深度可达 3000 m。该耐压水听器为
大深度水听器设计提供了参考，在深水声学领域具有重要的应用价值。
关键词：压电球壳；耐压；水听器
中图法分类号: TB565+.1 文献标识码: A 文章编号: 1000-310X(2020)02-0268-07
DOI: 10.11684/j.issn.1000-310X.2020.02.014

Pressure-resistant hydrophone based on piezoelectric ceramic spherical shell

WANG Wenlong 1,2 DA Lianglong 1,2 YIN Hang 2

(1 Navy Submarine Academy, Qingdao 266199, China)
(2 National Laboratory for Marine Science and Technology, Qingdao 266237, China)

Abstract: Based on the pressure resistance of piezoelectric ceramic spherical shell itself, a pressure-resistant
hydrophone was designed and fabricated by using radially poled air backing piezoelectric ceramic spherical shell
transducer as acoustic sensitive element. Firstly, the acoustic characteristics such as low frequency open circuit
receiving sensitivity and vibration frequency were analyzed, and simulated by finite element method. Then the
pressure-resistant performance such as strength and stability were analyzed, also simulated with FE software.
Finally, its acoustic performance and pressure resistance were tested. Test results show that the diameter of
the pressure-resistant hydrophone is 36 mm, and its working frequency range is from 50 Hz to 10 kHz. The low
frequency pressure sensitivity is −198.4 dB (0 dB ref 1 V/µPa), the noise spectrum level is 46.5 dB at 1 kHz,
and its working depth is 3000 m. This pressure-resistant hydrophone provides a reference for the design of deep
water hydrophones and has important application value in the field of deep water acoustics.
Keywords: Piezoelectric ceramic spherical shell; Pressure-resistant; Hydrophone

2019-05-08 收稿; 2019-10-11 定稿
作者简介: 王文龙 (1990– ), 男, 山东莱西人, 博士研究生, 研究方向: 水声换能器。
† 通信作者 E-mail: wilon7521@qq.com