【摘要】 超声波马达是一种由超声振动而获得驱动力的新型电机。它利用作为定子的压电陶瓷振子，通过压电效应产生高频振动并依靠摩擦力来驱动压置在其上的转子运动。其特点：结构简单，且转速低，单位体积转矩大，响应性能良好，控制性能好，效率高。更多还原

【Abstract】 Ultrasonic motor is a new type of electric machine driven by ultrasonic vibration. By means of piezoelectric merarnic vibrator as a staor, it drives the rotor put on it into motion through friction power and dither produced by piezoelectric effect. It has the attibutes of simple structure, low roation rate, great torque Per unit volume, perfect response and control characteristics as well as high efficency.更多还原