MINI Electronic Signals: Potentiometers

A Potentiometer produces a gradually changing voltage signal to a control module. The signal is infinitely variable within the operating range of the sensor.

This varying voltage reflects a mechanical movement or position of the potentiometer wiper arm and its related components.

Fig 1: Potentiometer Wiper Diagram

Courtesy of BMW OF NORTH AMERICA, INC.

Typical Application of Potentiometers: 

• Pedal Position Sensors
• Throttle Position Sensors (Also Feedback Potentiometers)