1, servo motor
Servo motors are widely used in various control systems to convert the input voltage signal into mechanical output on the motor shaft and drag the controlled components to achieve control purposes.
The servo motor has DC and AC. The earliest servo motor is a general DC motor. When the control accuracy is not high, the general DC motor is used as the servo motor. The current DC servo motor is structurally a low-power DC motor, and its excitation uses armature control and magnetic field control, but usually uses armature control.
2, stepper motor
The stepping motor is mainly used in the field of CNC machine tool manufacturing. Since the stepping motor does not require A/D conversion, it can directly convert the digital pulse signal into angular displacement, so it has been considered as the most ideal CNC machine tool actuator.
In addition to its application on CNC machines, stepper motors can also be used on other machines, such as motors in automatic feeders, as general-purpose floppy disk drives, as well as in printers and plotters.
3, torque motor
Torque motors are characterized by low speed and high torque. AC torque motors are commonly used in the textile industry, and their working principle and structure are the same as those of single-phase asynchronous motors.
4, switched reluctance motor
Switched reluctance motor is a new type of variable speed motor. It is extremely simple and sturdy, low in cost and excellent in speed regulation. It is a strong competitor of traditional control motors and has strong market potential.
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