A potentiometer can be an electromechanical transconductor that converts mechanical energy into electricity. The input product is a form of mechanical displacement, either linear or rotational. Whenever a voltage is applied over the set terminals of the potentiometer, the end result voltage, measured between your variable terminal and ground it really is proportional to the displacement insight, either linearly or relating to a nonlinear romance.
Potentiometers are generally made РІР‚вЂ№РІР‚вЂ№of cable or conductive plastic resistant material. 1 reveals a rotary potentiometer and Figure 2 a linear potentiometer. For precision control, conductive plastic potentiometer is preferable since it includes a static infinite resolution, rotational extended life, smooth and low noises output
Figure 1Figure 2
Figure 3 shows the same circuit representation of a potentiometer, linear or rotary. Because the voltage between your variable terminal the reference is normally proportional to the displacement of the potentiometer shaft, whenever a voltage between your fixed terminals is used, the device can be utilised to point the absolute placement of a system