Indoor Growing Lights,Pendant Lighting,Motion Lights Indoor,Solar Lamps Indoor Foshan Nanhai Pinming Electrical Appliance Co.,Ltd , https://www.mavcadonf.com The measuring device and the feedback component are usually mounted on the working table or the screw of the machine tool, which is equivalent to the dial of the ordinary machine tool and the human eye. It converts the actual displacement of the machine table into an electrical signal and feeds it back to the CNC device for the CNC device. An error signal is generated in comparison with the command value to control the machine tool to move in a direction to eliminate the error.