Piezoresistive pressure sensor diffusion silicon pressure sensor. The piezoresistive sensor has become a commonly used pressure sensor thanks to the widespread use of MEMS manufacturing technologies.
Industrial pressure sensors also referred to as pressure transducers, pressure transmitters, pressure indicators and pressure switches, normally have a diaphragm type design that uses strain gauges, which are either bonded to or diffused into it, with the strain gauges acting as resistive elements.
Terms of pressure sensor, pressure transducer and pressure transmitter are somewhat interchangeable in the industrial world. Pressure sensors can be described with a 4-20mA output signal and pressure transducers with a millivolt signal.
Piezoresistor pressure sensor is a sensor made of piezoresistor effect of monocrystalline silicon and integrated circuit technology. When the monocrystalline silicon material is affected by the force, the resistivity changes, through measuring circuit, ratiometric output signal to force change can be obtained. It is also known as the diffused silicon piezoresistive pressure sensor, which is different from the adhesive strain gauge which needs to feel the external force indirectly through the elastic sensitive element, but directly through the silicon diaphragm to feel the measured pressure.
How to select a suitable pressure sensor sometimes is a difficult decision. There are some tips for you. There are six common types of pressure sensor in our market, it's hard to say which one is best, but we can select a most suitable once upon our application and practical condition. we have a table to analyze their different performance and features.
