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Automating Manufacturing Systems - Process Control and ...

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continuous actuators - 24.27<br />

How many pulses are required to rotate the motor through three complete revolutions?<br />

If it is desired to rotate the motor at a speed of 25 rev/min, what pulse<br />

rate must be generated by the robot controller?<br />

2. Describe the voltage ripple that would occur when using a permanent magnet DC motor as a<br />

tachometer. Hint: consider the use of the commutator to switch the polarity of the coil.<br />

3. Compare the advantages/disadvantages of DC permanent magnet motors <strong>and</strong> AC induction<br />

motors.

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