What are Transducers and How Do They Measure Different Physical Quantities?

[bill nye scienceguy!]

such as strain gauges/ thermistors etc., which give you a reading of one value (ie strain) after measuring something completely different but related (ie change in electrical resistance)

 

[FredGarvin]

Transducers.

http://en.wikipedia.org/wiki/Transducer

 

[bill nye scienceguy!]

thanks very much! :)