Feedback control requires being able to sense the variable being controlled.

Because electrical signals can be transmitted, amplified, and processed easily, often we want to have a sensor whose output is a voltage or current proportional to the variable being measured. Describe a sensor that would give an electrical output proportional to :



(A) Temperature (온도)



(B) Pressure (압력)



(C) Liquid level (액체 상태)



(D) Flow of liquid along a pipe (or blood along an artery) force



(E) Linear position



(F) Rotational position



(G) Linear velocity



(H) Rotational speed



(I) Translational acceleration



(J) Torque (토크)



위 문제 입니다. 무슨 말인지??



컨트롤 시스템의 전류 전압이 아래 상황에 따라서 왜 변하는가 물어 보는건가요?