Study on Underwater Performance of Underwater Transducer Manufactured by 1-1-3 Piezoelectric Composite

被引：0
|
作者：
Du H. [1 ]
Qin L. [1 ,2 ]
Zhong C. [1 ]
Wang L. [1 ,2 ]
机构：
[1] Research Center of Sensor Technology, Beijing Information Science & Technology University, Beijing
[2] Key Laboratory of Modern Measurement & Control Technology, Ministry of Education, Beijing Information Science and Technology University, Beijing
来源：
Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University | 2019年 / 37卷 / 02期
关键词：
1-1-3 piezoelectric composite materials; Performance; Sound source; Transducer; Transmission voltage response;
D O I：
10.1051/jnwpu/20193720386
中图分类号：
学科分类号：
摘要：
A novel kind of underwater transducer with trapezoidal matching layer manufactured by 1-1-3 piezoelectric composite has been proposed to improve the underwater performance of high frequency transducer. In this paper, the finite element method has been used to analyze the influence of the matching layer on the electrical properties of the composite materials and vibration displacement of the radiation area. Two kinds of underwater transducers with and without matching layers have been fabricated. The experimental results show that the transmission voltage response of the underwater transducer with matching layer reaches 169.4 dB at 360 kHz, and the receiving voltage sensitivity reaches-190 dB, the bandwidth is up to 70 kHz and the maximum sound source level is 208 dB. Comparing with transducer without matching layer, the transmission voltage response is increased by 3.8 dB. Meanwhile the sound source level is increased by 6 dB. The received bandwidth is increased by 1.45 times. © 2019 Journal of Northwestern Polytechnical University.
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页码：386 / 392
页数：6
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