What is the difference between a dc motor and a servo motor?
Servo motors are widely used in various kinds of control system, can convert the input voltage signal to the motor shaft mechanical output, drag the control element, so as to achieve the control purpose.
The dc motor is the magnetic field, which is moving in the field. Ac motor is a magnetic field rotating motion, while the conductor does not move. Dc motor are divided into stator winding and rotor winding. The stator winding magnetic field is produced. When general dc. The stator winding is fixed polarity of the magnetic field generated. The rotor flux direct current in the magnetic field force. The rotor in the magnetic field force then spin. Direct current institutions to build complex. Cost is high.
Has dc and ac servo motor, the original servo motor was general of dc motor, the control accuracy is not high, only the general dc motor servo motor. Structurally, the dc servo motor is small power dc motor, its excitation controlled by the armature and field control, but usually the armature control
