Which of the following types of sensors cannot be used as a RPM reference sensor?
A) Potentiometer
B) Permanent magnet
C) Optical
D) Hall effect

Question

Quizplus · Accepted Answer

Potentiometers are not typically used as RPM reference sensors because they measure position or displacement, not rotational speed directly. Permanent magnet, optical, and Hall effect sensors can all be used to measure RPM by detecting rotational movement or changes in magnetic field as an object rotates.

Which of the Following Types of Sensors Cannot Be Used