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Match the transducer with its output.

1. Resolver   2. Tachogenerator   3. Control transformer

P. A voltage proportional to angular error   Q. Sine and cosine of shaft angle   R. A voltage proportional to speed

  • A.1-R, 2-Q, 3-P
  • B.1-P, 2-R, 3-Q
  • C.1-Q, 2-P, 3-R
  • D.1-Q, 2-R, 3-P

Answer: D

Correct answer: 1-Q, 2-R, 3-P

Three transducers with three outputs. A resolver gives the sine and cosine of the shaft angle, from which the angle follows unambiguously. A tachogenerator gives a voltage proportional to speed. And a control transformer gives a voltage proportional to the angular error between its own position and the transmitted one.

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