Testing an improved cymbal hydrophone  

钹式水听器的改进和测试(英文)

作　　者：陈晟[1] 林关成[1] 

机构地区：[1]西北工业大学航海工程学院,陕西西安710072

出　　处：《Journal of Marine Science and Application》2009年第4期328-332,共5页船舶与海洋工程学报（英文版）

摘　　要：Cymbal hydrophones have small volume and high sensitivity, but their reception is not stable enough, and their reception is in too narrow a frequency band. In order to overcome these inadequacies, the structure of the cymbal hydrophone was improved. The single ceramic piezoelectric element was replaced with a double one, the radius of the ceramic piezoelectric element was reduced, and a parallel circuit was added. A static analysis of this new structure was developed, and then simulations were made of both the traditional and new hydrophone structure using finite element software. Tests were then conducted in a tank. The results showed that the improved hydrophone has reception in a wider frequency band, reception performance is stable within this frequency band, and sensitivity is still high.

关 键 词：cymbal hydrophone sensitivity resonance frequency parallel connection frequency band 

分 类 号：TB565.1[交通运输工程—水声工程]