Question

Low power transducers called sensors prefer:

(a) Linear relationship between controlled variable and output variable

(b) Non-functional relationship between controlled variable and output variable

(c) Non-linear relationship between controlled variable and output variable

(d) Not related with each other

This question was posed to me during an interview for a job.

My question is based upon Controller Components topic in section Control System and Components of Control Systems

Answer 1

Right option is (a) Linear relationship between controlled variable and output variable

The explanation: Sensors are different from transducers as in transducers the energy is converted from one form to another while in sensors only the energy is sensed not converted and it is possible to get the accurate results in less time.