Question

What is the relation between e.m.f. and displacement in electronic gauging systems?

(a) E.m.f is directly proportional to displacement

(b) E.m.f is inversely proportional to displacement

(c) E.m.f is independent to displacement

(d) E.m.f is directly proportional to cube of displacement

I have been asked this question in quiz.

The question is from Electronic Gauging in portion Testing and Calibration of Gauges and Dynamic Measurement of Engineering Metrology

Answer 1

Correct choice is (a) E.m.f is directly proportional to displacement

The explanation: Mostly the electric gauging systems are based on the principle of displacement transducer e.g. LVDT (linear voltage differential transducer) which produces an e.m.f. This is linearly proportional to the displacement.