Control System Engg
A schematic diagram of A.C. tacho commonly used in servo-mechanism is shown in Fig. 1 0.22. This type resembles a two phase servomotor. The input winding and rotor is thought of as a single phase induction motor whose shaft is turned by some external shaft. ... When the rotor turns, the induced emf due to the forward and reverse field are different since they are rotating with different frequencies.
| Title | : | Control System Engg |
| Author | : | Palani |
| Publisher | : | Tata McGraw-Hill Education - 2010 |
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