圆筒压电振子产生周向行波的激励原理  

Traveling-wave Exciting Principle of Cylindrical Vibrator in Circumferential Direction

作　　者：董云朝[1] 刘景全[2] 杨志刚[3] 吴博达[3] 

机构地区：[1]上海交通大学图象通信与信息处理研究所,上海200030 [2]上海交通大学微纳米科学技术研究院,上海200030 [3]吉林大学机械科学与工程学院,长春130025

出　　处：《压电与声光》2002年第1期64-67,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目 (5 9675 0 44 )

摘　　要：圆筒型行波非接触超声马达需要在其圆周方向形成行波以产生驱动力。文章较系统地研究激励圆筒振子产生周向行波的原理 ,分别给出了激励源在空间和时间上的关系 ,为有效设计和激励压电振子提供了理论依据。同时对多种激励法进行了研究和比较 ,给出了相对简便的激励法。最后根据理论分析 ,设计了振子进行实验 。In order to drive the non contact traveling wave cylindrical ultrasonic motor,it needs to form traveling wave along the circumferential direction The exciting principle of traveling wave of cylindrical vibrator is studied systematically The relationships among the exciting power about space and time domains are give,which provides the theoretical foundation for designing and exciting vibrator The simpler exciting method is reported comparing with some exciting methods At last,the vibrator is excited based on the theory above,and the experimental results are in accord with the theory

关 键 词：超声马达 非接触 行波 圆筒型振子 激励原理 压电振子 

分 类 号：TM35[电气工程—电机]