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Which of the following devices are commonly used as error detectors in instruments ?

(a) Vernistats

(b) Microsyns

(c) Resolvers

(d) None of the mentioned

The question was asked in quiz.

My question is based upon Closed-Loop Transfer Function topic in section Automatic Control of Machine Dynamics

1 Answer

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by (38.6k points)
Right answer is (d) None of the mentioned

The best I can explain: The commonly used error detectors are self-balancing recording potentiometer, hot wire anemometer, eloctro-magnetic flow meter, torque sensor etc.

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