首页 | 官方网站   微博 | 高级检索  
     

扭转振动压电超声换能器的研究
引用本文:林书玉.扭转振动压电超声换能器的研究[J].声学技术,1995,14(3):135-138.
作者姓名:林书玉
作者单位:陕西师范大学应用声学研究所
摘    要:本文对夹心式复合结构压电超声扭转振动换能器进行了系统的理论研究,该换能器由两段金属真圆棒及切向极化的压电陶瓷圆片堆复合而成,文中首先研究了切向极化压电陶瓷细长管的扭转振动性,推出了其机电等效电路,并提出了压电陶瓷细长管截面扭转系数的概念。,

关 键 词:复合结构换能器  扭转振动  超声换能器

Study on the piezoelectric torsional transducer
LIN Shuyu.Study on the piezoelectric torsional transducer[J].Technical Acoustics,1995,14(3):135-138.
Authors:LIN Shuyu
Abstract:In this paper, I studied the composite torsional transducer which consists of the piezoelectric ceramic pile of circular pipes, the front and the back metal cylinders.First f the torsional vibration of the tangentially polarized piezoelectric ceramic slender pipe is analyzed, the electromechanical equivalent circuit is derived and the concept of the cross sectional torsional coefficient is proposed. Then, based on the equivalent circuit, the torsional vibration of the tangentially polarized piezoelectric ceramic pile is studied by means of the network theory and the equivalent torsional soun speed in the pile is obtained. At last the resonance frequency equation of the comPOsite torsional transducer is derived, which can be used to design the torsional transducer for different applications.
Keywords:composite transducer  torsional vibration  tangential polarizaton  resonance frequency  electrimechanical equivalent circuit  cross sectional torsional coefficient  
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号