[1]季博成,蓝宇,周天放.压电单晶双激励宽带纵向换能器[J].哈尔滨工程大学学报,2018,39(09):1472-1477.[doi:10.11990/jheu.201706078]
 JI Bocheng,LAN Yu,ZHOU Tianfang.Piezoelectric single-crystal dual-excited broadband longitudinal transducer[J].hebgcdxxb,2018,39(09):1472-1477.[doi:10.11990/jheu.201706078]
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
39
期数:
2018年09期
页码:
1472-1477
栏目:
出版日期:
2018-09-05

文章信息/Info

Title:
Piezoelectric single-crystal dual-excited broadband longitudinal transducer
作者:
季博成1 蓝宇12 周天放12
1. 哈尔滨工程大学 水声工程学院, 黑龙江 哈尔滨 150001;
2. 哈尔滨工程大学 水声技术重点实验室, 黑龙江 哈尔滨 150001
Author(s):
JI Bocheng1 LAN Yu12 ZHOU Tianfang12
1. College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China;
2. Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China
关键词:
压电单晶双激励纵向换能器宽带有限元等效电路四端网络法PMNT发射响应
分类号:
TB565.1
DOI:
10.11990/jheu.201706078
文献标志码:
A
摘要:
为了提高纵向换能器发射响应和工作带宽,本文以压电单晶PMNT做为有源驱动材料,采用双晶堆不同尺寸反相激励的方式,同时激发出一阶、二阶纵振模态,从而提高纵向换能器发射响应,拓宽工作频带。通过四端网络法简化换能器的等效电路并计算其发射性能,利用ANSYS软件对模型进行优化设计并制作了试验样机,最终测试数据显示在工作频带27~65 kHz,最大发射电压响应值不低于150 dB,带内起伏小于12 dB。研究结果表明:理论计算、有限元仿真计算与实测结果基本吻合,利用双晶堆反相激励的方式可实现纵向换能器较宽频带工作。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-6-21。
基金项目:国家自然科学基金项目(160050300037).
作者简介:季博成(1990-),男,博士研究生;蓝宇(1974-),男,教授,博士生导师.
通讯作者:蓝宇,E-mail:jibocheng@hrbeu.edu.cn
更新日期/Last Update: 2018-09-12