Research on Piezoelectric Transducer with Negative Impedance by FEM

摘要：

　　Piezoelectric transducer with negative impedance matching circuit is put forward to enhance its performance in broadband frequencies.The typical multi-physics problem is coupled with sound wave equations,structure stress-strain equations,piezoelectric constitutive equations and electric ordinary equations,and it is analyzed with FEM in detail.Frequency response characteristics are simulated when shunted with negative-impedance in series.When proper negative synthesized elements are connected,the performance of low frequencies and bandwidth are enhanced obviously.

关键词： Piezoelectric Transducer Negative Impedance Coupled Multiphysics FEM

作者: Wenqun Zhang Xinyue Wu Wen Cao

作者单位: Department of Mechanical Engineering,NUE,Wuhan,China Wuhan Environmental Protection Science Research Institute,Hubei,China

会议类型: 国际会议

会议名称: 2012 International Applied Mechanics,Mechatronics Automation Symposium(2012应用力学,机电一体化自动化国际研讨会)(IAMMAS2012)

会议地点: 沈阳

会议语种:英文

页码: 1634-1637

在线出版日期: 2012-09-07（万方平台首次上网日期，不代表论文的发表时间）