SIMULATION STUDY ON WIDEBAND TRANSDUCER WITH LONGITUDINAL-FLEXURAL COUPLING VIBRATION
This paper designed a longitudinal bending coupled piezoelectric transducer.The transducer is composed of a rear metal block, a longitudinally polarized piezoelectric ceramic piece and a slotted round front cover.The longitudinal vibration of the piezoelectric oscillators drive the front cover to generate bending vibration to widen the operating frequency band while reducing the fluctuation of transmission voltage response.In this paper, the design method of this multimode coupled transducer is given, and the method is verified by numerical simulation.The results show that the analytical theory and numerical simulation results have good consistency.This longitudinal-flexural coupled vibration transducer widens the bandwidth while preserving the emission voltage response.
Longitudinal-flexural coupled Broadband Piezoelectric transducer
Yue Gou Yu-yu Dai
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China
国际会议
哈尔滨
英文
362-365
2019-01-11（万方平台首次上网日期，不代表论文的发表时间）