Question

Thermal compensation can be provided in a Wheatstone bridge by ________

(a) using more than one resistive sensor

(b) making use of a heat sink

(c) using cooling fans

(d) immersing the circuit into a liquid

This question was posed to me in an interview.

Enquiry is from Applications of Wheatstone Bridge in portion Measurement of Resistance of Electrical Measurements

Answer 1

Right choice is (a) using more than one resistive sensor

To explain I would say: By making use of more than one resistive sensor within the four arms of a Wheatstone bridge we get a full bridge, half bridge or a quarter bridge setup with an automatic balancing effect.