absolute pressure sensor / piezoresistive / ceramic / analog
HDI, HDO, HDU, HCE, HCA-BARO, HMU
First Sensor AG
The pressure sensors for air and gases work according to the piezoresistive measuring principle. Four resistors are combined on a thin silicone diaphragm to form a measurement bridge. When it comes to liquids, industrial transmitters with ceramic or stainless steel pressure measurement cells are used. Media compatibility and a long service life are therefore guaranteed in aggressive and corrosive media. In medical and HVAC applications, piezoresistive sensors are complemented by innovative extremely low differential pressure sensors. Thanks to a new technology based on thermal mass flow measurement these sensors combine rapid response behaviour with extremely high sensitivity. Areas of use include medical technology (ventilation, anaesthesia, dialysis and drip-infusion machines) and industrial applications (pneumatics, hydraulics and automation) for media such as oils, fuels, coolants, water and other aggressive and non-aggressive liquids.