Wheatstone bridge implementation of a 3 wire RTD probe. Source: Wikipedia Not all of us enjoy analog circuit design, and there is a decent IC that will handle it for you: the MAX31865 RTD to ...

[Keri] selects them not with his golden ears, but by wiring both pots together as a Wheatstone bridge. A meter between the two wipers would detect any current due to a mismatch. A Wheatstone ...