一种宽频带压电单晶换能器设计

刘一鸣; 田丰华; 宋 哲; 王 涛; 吕林夏

doi:10.11993/j.issn.2096-3920.2020.01.015

一种宽频带压电单晶换能器设计

doi: 10.11993/j.issn.2096-3920.2020.01.015

1.
中国船舶重工集团公司第705研究所, 陕西西安, 710077
2.
西安交通大学电子与信息工程学院, 陕西西安, 710049

详细信息

作者简介:
刘一鸣(1995-), 男, 在读硕士, 主要研究方向为水声换能器与声系统.

中图分类号: TJ630; U666.74
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- 文章访问数: 372
- HTML全文浏览量: 3
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- 被引次数: 0
出版历程
- 收稿日期: 2019-05-28
- 修回日期: 2019-07-09
- 刊出日期: 2020-02-29

Design of a Broadband Piezoelectric Single Crystal Transducer

1.
The 705 Research Institute, China Shipbuilding Industry Corporation, Xi’an 710077, China
2.
School of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an 710049, China

摘要

摘要: 为提高复合棒换能器的低频性能、工作带宽、发送电压响应和接收灵敏度, 文中以铌镁酸铅-钛酸铅(PMN-PT)压电单晶作为驱动元件, 利用匹配层技术拓展带宽, 设计了宽频带压电单晶换能器。利用有限元软件分别建立压电单晶换能器和相似规格的压电陶瓷换能器的有限元模型, 完成了对PMN-PT单晶材料性能的量化评估。水池测试表明, 利用PMN-PT单晶材料作驱动元件的宽带换能器与锆钛酸铅压电陶瓷PZT-4相比, 频率更低, 带宽更宽, 发送电压响应提高3~5 dB, 接收灵敏度提高1~12 dB, 可有效提高换能器的水声探测能力。
- 复合棒换能器 /
- 压电单晶 /
- 匹配层 /
- 有限元 /
- 宽频带
Abstract: To improve the low-frequency performance, working bandwidth, transmitting voltage response and recei- ving sensitivity of the composite bar transducer, a broadband piezoelectric single crystal transducer is designed with PMN-PT piezoelectric single crystal as the driving element, and the matching layer technology is adopted to expand its bandwidth. The finite element software is employed to establish finite element models of the piezoelectric single crystal transducer and a similar piezoelectric ceramic transducer, and quantitative evaluation of single crystal PMN-PT materials is completed. Pool test shows that compared with the transducer with PZT-4 material, the designed broadband transducer has lower frequency and wider bandwidth, and its transmission voltage response is 3~5 dB higher and receiving sensitivity is 1~12 dB higher, indicating that the designed transducer has better acoustic detection performance.
- composite bar transducer /
- piezoelectric single crystal /
- matching layer /
- the finite element /
- broadband

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参考文献(10)

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