In view of the problems existing in open loop system of CNC machine tools with stepper motor as driving motor, such as lower servo precision, without compensation for step-losing of stepper motor and so on, this paper presents a new technique called quasi-close loop control.
针对以步进电机作为驱动电机的数控机床开环系统存在的一些问题 ,诸如伺服精度低、失步误差不能补偿等 ,文章提出了一种新的控制技术———准闭环控制。
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