Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001
· A variable resistor is used to convert a displacement to resistance/voltage.
· These give absolute position readings.
· The basic principle of operation is that a moving wiper (sensor input) moves a contact along a resistor. The ends of the resistor are connected to reference voltages. As the wiper moves the potentiometer acts as a voltage divider and produces a voltage proportional to position.
