Posital’s MDW draw-wire linear position sensors ... The sensors are an alternative to conventional multiturn potentiometers. Based on a noncontacting magnetic- measurement technology, they ...

Motorized linear potentiometers are a rare, exotic, and just plain neat input device most commonly found on gigantic audio mixing boards and other equipment that costs as much as a car.

To correct the nonlinearity, using a simple feedback mechanism as a potentiometer yields a linear response (Figure 2). This circuit uses two photoelectric FETs—one for feedback and the other for ...