PARAMETERS OPTIMIZATION OF THE SANDWICH PIEZOELECTRIC TRANSDUCER

被引：0
|
作者：
Xu, Jie [1 ]
Dou, Yang [2 ]
Lin, Shu-yu [1 ]
机构：
[1] Shaanxi Normal Univ, Inst Appl Acoust, Shaanxi Key Lab Ultrason, Xian 710119, Peoples R China
[2] Xian Yitong Thermal Technol Serv Ltd Liabil Co, Xian 710119, Peoples R China
来源：
PROCEEDINGS OF 2016 SYMPOSIUM ON PIEZOELECTRICITY, ACOUSTIC WAVES, AND DEVICE APPLICATIONS (SPAWDA) | 2016年
基金：
中国国家自然科学基金;
关键词：
Piezoelectric transducer; electromechanical equivalent circuit; resonance frequency; electroacoustic efficiency;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Based on the electromechanical equivalent circuit method, with the consideration of mechanical loss and dielectric loss, input electrical impedance equation and electroacoustic efficiency equation are obtained. Sandwich piezoelectric transducers of both symmetrical and asymmetrical structure are analyzed. Characteristic parameters of effective electromechanical coupling coefficient, mechanical quality factor and electroacoustic efficiency are optimized. Resonance/ anti-resonance frequency is measured and effective electromechanical coupling coefficient is calculated. It is found that the experimental results are in good agreement with the analytical results.
引用
收藏
页码：19 / 22
页数：4
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