This article is about an engineering device. Transducers that convert physical quantities into electrical are called electrical transducers. It is operated by a source of energy, which can be mechanical force, electrical current, hydraulic fluid pressure, or pneumatic pressure, and converts that energy into motion. An actuator is the linear displacement transducer pdf by which a control system acts upon an environment.
Bidirectional transducers convert physical phenomena to electrical signals and also convert electrical signals into physical phenomena. The signal is modulated by the sensor to produce an output signal. Transducers with larger dynamic range are more “sensitive” and precise. This is the ability of the transducer to produce an identical output when stimulated by the same input.
Noise corrupts small signals more than large ones. This is a property in which the output of the transducer depends on not only its current input but also its past input. Foundations of Analog and Digital Electronic Circuits. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 2005, p. New York and London: Focal Press.