Research and Fabrication of High-Frequency Broadband and Omnidirectional Transmitting Transducer

被引：30

作者：

Hao, Shaohua ^{[1
]}

Wang, Hongwei ^{[1
]}

Zhong, Chao ^{[2
]}

Wang, Likun ^{[2
]}

Zhang, Hao ^{[1
]}

机构：

[1] Beijing Informat Sci & Technol, Sch Sci, Beijing 100192, Peoples R China

[2] Beijing Informat Sci & Technol Univ, Sensing Technol Res Ctr, Beijing 100101, Peoples R China

来源：

SENSORS | 2018年 / 18卷 / 07期

基金：

中国国家自然科学基金;

关键词：

composite materials; multimode coupling; curved-surface forming; high frequency; broadband; horizontal omnidirectional emission; underwater acoustic transducer; ULTRASONIC TRANSDUCER; FINITE-ELEMENT; COMPOSITE; DESIGN;

D O I：

10.3390/s18072347

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A wide-band cylindrical transducer was developed by using the wide band of the composite material and the matched matching layer for multimode coupling. Firstly, the structure size of the transducer's sensitive component was designed by using ANSYS simulation software. Secondly, the piezoelectric composite ring-shaped sensitive component was fabricated by the piezoelectric composite curved-surface forming process, and the matching layer was coated on the periphery of the ring-shaped piezoelectric composite material. Finally, it was encapsulated and the electrodes were drawn out to make a high-frequency broadband horizontal omnidirectional water acoustic transducer prototype. After testing, the working frequency range of the transducer was 230-380 kHz, and the maximum transmission voltage response was 168 dB in the water.

引用

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