
A transducer is an instrument which converts one energy from into another energy form, generally converts a signal in one energy form to that in another energy form. They are typically used in measurement, automation and control systems wherein electric signals are converted from one physical quantity to another physical quantity such as energy, torque, force, light, position, motion, etc.). Thus the process of transduction involves conversion of energy in one form to another. There are passive, active, sensors, bidirectional transducers and active transducers. Potentiometers can be applied as position transducers, like in a joystick. Position transducers can be installed with help of supports. Generally, brackets, joints which are self-aligning and articulated and flanges are used.