PARAMETERS OPTIMIZATION OF THE SANDWICH PIEZOELECTRIC TRANSDUCER

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.

关键词： Piezoelectric transducer electromechanical equivalent circuit resonance frequency electroacoustic efficiency

作者: Jie XU Yang DOU Shu-yu LIN

作者单位: Shaanxi Key Laboratory of Ultrasonics, Institute of Applied Acoustics, Shaanxi Normal University, Xi Xian Yitong Thermal Technology Services Limited Liability Company, Xian, 710119, China

会议类型: 国际会议

会议名称: The 2016 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2016全国压电和声波理论及器件技术研讨会)

会议地点: 西安

会议语种:英文

页码: 19-22

在线出版日期: 2016-10-21（万方平台首次上网日期，不代表论文的发表时间）