Comparison of stepper motor and servo motor
Both stepper motors and servo motors can greatly improve the accuracy of the control loop. The stepper motor rotates at a fixed angle (step angle), and has no accumulated error, and has been widely used in various open loop controls. The servo motor can convert the received electrical signal into an angular displacement or angular velocity output on the motor shaft. It is characterized by no rotation when the signal voltage is zero, but its speed will decrease as the torque increases.
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