Measurement principle of three coordinate measuring machine based on half-closed loop control is introduced.
介绍了一种基于半闭环控制的三坐标测量机的测量原理。
Using the central control system PLC, intelligent temperature controller and pressure gauge to replace the three pen recorder to realize the closed loop circulation and record of outer temperature.
采用中央控制PLC、智能温控器及压力仪表等替代原进口三针记录仪，实现外温的闭环控制和记录；
In particular, the three closed loops including position loop, current loop and speed loop, and the hardware structure of the control system were described in detail.
详细介绍了控制系统采用的硬件结构和位置环、电流环和速度环三闭环控制方法。
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