摘要
提出了一种圆筒型行波非接触超声马达,以圆筒型振子为定子,矩形板压电陶瓷粘贴在圆筒振子的外表面作为激励源以产生周向行波。研究了激励圆筒振子产生周向行波的原理,分别给出了激励点间在空间和时间上的关系,为有效设计和激励定子提供了理论依据。同时对驱动电源与激励点的连接方法进行了研究。最后根据理论分析,设计了马达样机进行实验,取得了良好的转速输出。
A travelling-wave non-contact ultrasonic motor is proposed, whose stator is a circular cylindrical vibrator. The rectangle piezoelectric ceramics bonded on the outer surface of the vibrator are used as exciting supply. The exciting principle of travelling-wave along the circumferential direction of the vibrator is studied systematically. The relationships among the exciting supplies on space and time domains are given, which provide the theoretical foundation for designing and exciting the stator. Moreover, the connecting method between electric power and exciting supply is also discussed. Based on those theories, the prototype of the motor is fabricated for trial, and the revolution property is well.
出处
《声学学报》
EI
CSCD
北大核心
2003年第1期91-95,共5页
Acta Acustica
基金
国家自然科学基金(59675044)
中国博士后基金资助项目
