Provide one example of systems that can be controlled using PI controller and one example for which PID control is more adequate. Describe the control systems’ inputs and outputs and the sensing/actuation methods used for the examples.

 

Sounds like home work?
Some of the above can be found in App notes on the Picmicro site explaining some methods used for low response devices such as heating to faster devices such as motors.
Max.

 

You need to study what are the purposes and effects of P, I , and D.

Proportional - supplies a correction based on the magnitude of the error.
Integral - takes an average over time and tries to reduce the error to zero.
Derivative - looks at the rate of change, i.e. short term fluctuations, hence is more effective at correcting short term perturbations.

 

I'm always amused when the TS posts an obvious homework problem verbatim, without any attempt to disguise it, and expects us to provide the answer.

 

Homework