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Pressure error can be measured by which of the following?

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in Control Systems by (105k points)
Pressure error can be measured by which of the following?

(a) Differential bellows and strain gauge

(b) Selsyn

(c) Strain gauge

(d) Strain gauge and potentiometer

This question was posed to me in an interview for internship.

This question is from Pole Placement by State Feedback topic in division State Variable Analysis and Design of Control Systems

1 Answer

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Correct answer is (a) Differential bellows and strain gauge

To explain I would say: Pressure error is the error that is caused due to change in the pressure and the error can be measured by differential bellows and strain gauge which is by the change of dimensions.

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