介绍了一种基于尺蠖运动原理的纳米级步距压电电动机，提出了一种新型的压电陶瓷驱动电源，并给出了详细的电路原理图。
A kind of piezoelectric motor with nano-step, based on the principle of inchworm motion, is introduced in this paper, then a newly developed driving power is presented in detail.
提出了一种新的步进电动机微步驱动方式下步距角的测试方法，较好地解决了微小步距角的测量问题，给出了实验数据和曲线的例子。
Present a new method to test the micro step angle of step motor in micro step driving mode. Solve the problem of how to test the micro step angle. This paper provide practical data and curve.
采用不等齿距的设计，减小二相电动机的定位转矩，提高其运行性能。
Through the design of unequal tooth pitch, the detent torque can be effectively minimized for improved operation performance.
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