Payne, Peter A. Department of Instrumentation and Analytical Science, University of Manchester, Institute of Science and Technology, Manchester, United Kingdom.
- Displacement transducers
- Force transducers
- Acceleration transducers
- Velocity transducers
- Pressure transducers
- Temperature transducers
- Flow transducers
- Chemical transducers
- Biological transducers
- Advanced devices
- Micro-electro-mechanical systems
- Links to Primary Literature
- Additional Readings
A device that converts variations in one energy form into corresponding variations in another, usually electrical form. Measurement transducers or input transducers may exploit a wide range of physical, chemical, or biological effects to achieve transduction, and their design principles usually revolve around high sensitivity and minimum disturbance to the measurand, that is, the quantity to be measured. Output transducers or actuators are designed to achieve some end effect, for example, opening of a valve or deflection of a control surface on an aircraft. Actuators, therefore, normally operate at high power levels. The term sensor is often used instead of transducer, but strictly a sensor does not involve energy transformation; the term should be reserved for devices such as a thermistor, which is not energy-changing but simply changes its intrinsic electrical resistance in response to changes in temperature.
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