The method can both speed up positioning and ensure the positioning precision, and in addition, it provides solutions for the resonance vibration which occurs in the operation of the step-servo motor.

该方法既可以提高快速性， 又可以保证系统的定位精度，同时对步进电机在运行过程中产生的共振现象提出了解决方法。

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A motion controller interchangeable for servo motor and step motor constructed by motion control chip PCL240AS is introduced.

提出一种用运动控制芯片PCL240AS构造的伺服电动机和步进电动机通用的运动控制器。

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Triaxial creep tests on coal rocks are carried out by Step Method and the XTR01 electric-fluid servo compression machine.

使用XTR01型微机控制电液伺服试验机，采用梯级加载法，对煤岩进行了三轴蠕变试验。

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