3．闭环数控系统（Closed loop numerical control system） 检测机床运动部件位置信号或与它等价的量，然后与数控装置输出的指令 信号（输入数据或与它等价的物理量）进行比较，若出现差值...
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A kind of the pulse control mode, the drive and motor closed loop, but not to the numerical control system, the feedback device, in a sense, can open loop control called the servo control.
一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
A kind of the use of impulsive control mode, the drive and motor closed loop, but not feedback to the numerical control system, this drive, in a sense, can open loop control called the servo control.
一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
A master slave mode of CNC system with a half closed loop control in the numerical control transformation of a machine tool was designed and implemented.
介绍了一个半闭环主从式数控系统在普通机床数控化改造中的设计及实现。
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