It is used in controlling pneumatic linear (rotary) actuators in order to Orient the positioner of valve exactly.
该方案主要用于控制气动直(角)行程执行器，实现阀门的准确定位。
2
3 mobile or welding positioner, such as welding roller frame, frame head and tail flip machine, rotary platform and positioner, mobile precision displacement mechanism should drive with servo motor.