The pressure sensor is a device or device that can sense the pressure signal and convert the pressure signal into a usable output electrical signal according to a certain rule. The pressure sensor is usually composed of a pressure sensitive element and a signal processing unit. According to different test pressure types, pressure sensors can be divided into gauge pressure sensors, differential pressure sensors and absolute pressure sensors.
Pressure sensor is the most commonly used sensor in industrial practice. It is widely used in various industrial automation environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil wells, electric power, ships, machine tools , Pipelines and many other industries, the following briefly introduces some common sensor principles and their applications. Another medical pressure sensor.

General purpose pressure sensor
Ceramic pressure sensor
High pressure sensor
     
Oil pressure sensor
Piezoresistive pressure sensor