介绍了一种基于半闭环控制的三坐标测量机的测量原理。
Measurement principle of three coordinate measuring machine based on half-closed loop control is introduced.
为实现对多电机的半闭环控制系统提供了一个良好的开发平台。
This would provide a good development platform for the half-closed-loop control system to multi-motors.
叙述了地毯簇绒机中横动运动的伺服控制，提出了基于可编程多轴控制器（PMAC）运动控制卡的半闭环控制系统。
Principle of thwartwise motion in tufting machine, hardware and function of Programmable Multi-Axis Controller (PMAC) and controlling process were presented.
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