China motor device factory， Servo motor can control the speed, position accuracy is very accurate, can convert the voltage signal into torque and speed to drive the control object.The rotor speed of the servo motor is controlled by the input signal, and can respond quickly. In the automatic control system, it is used as the executive component, and has the characteristics of small electromechanical time constant, high linearity, starting voltage and so on. The received electrical signal can be converted into the output of angular displacement or angular speed on the motor shaft.It is divided into DC and AC servo motors. Its main characteristic is that when the signal voltage is zero, there is no rotation phenomenon, and the speed decreases uniformly with the increase of the torque.Up to now, the high performance electric servo system mostly adopts the permanent magnet synchronous AC servo motor, the control driver mostly adopts the fast and accurate positioning of the full digital position servo system.
