摘要
本文介绍超声马达实验的原理和方法,用常规仪器测量并绘制导纳圆图、测量制超声马达的输入功率和输出力矩。
The Principle of ultrasonic motor is introduced.The admittance circle ofpiezoelectric element is measured with ordinary instruments,and the input power and outputtorque of a human-made ultrasonic motor are measured as well.
出处
《大学物理》
北大核心
1995年第8期26-30,共5页
College Physics
关键词
弯曲行波
导纳圆图
逆压电效应
超声马达
bending travelling wave;admittance circle ;converse piezoelectric effect