A servomotor cannot rotate like DC or stepper motors. Generally, they are used where a small amount
of rotation is necessary, like the radar of a model aircraft or ventilating fi ns of air-conditioning machines. As
compared with DC motors and stepper motors we have discussed so far, servomotors are capable of off ering
more torque as compared to its size. However, it is also more expensive than the previous two types of motors.
From external observations, it may initially be diffi cult to distinguish these three types of motors, as many
models look very much alike externally. However, a simpler method to distinguish ...
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