Electronic pressure measurement requires a sensor that records the pressure to be measured and converts it into an electrical signal. Due to the large output signals and the established manufacturing processes, as well as the many years of experience gained, piezoresistive technology has become established in pressure measurement.
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Transducers generally convert energy from one form to another, although the energy is typically a signal. They are routinely used in automated systems, which are often controlled by measurements of physical quantities such as force, motion, temperature and pressure. A sensor is a specific type of transducer that senses a physical property of its environment and reports that change, typically in the form of an electrical signal. For example, a pressure sensor detects pressure and reports it to a gauge that displays the pressure.
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Potentiometer - a contacting technology used in both linear and rotary sensors. Hall effect - more popular with rotary sensors but can also be used in linear sensors, non-contacting technology. Inductive - non-contacting technology using alternating currents to measure linear position. LVDT - non-contacting linear sensors - linear variable differential transformer RVDT - non-contacting rotary sensors - rotary variable differential transformer Eddy Current - inductive non-contacting measuring method for linear and rotary movements
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