A pressure sensor is a device used to measure and detect the pressure of a gas or liquid.

It achieves accurate measurement of pressure by sensing the pressure acting on the

measured medium and converting it into an output signal (such as an electrical signal).

Pressure sensors are widely used in industrial automation, environmental monitoring,

medical equipment, aerospace and other fields to monitor and control pressure changes

in various systems. With accurate pressure measurement, the safe operation of the system

can be ensured, production efficiency can be improved, and reliable data support for

relevant decisions can be provided. The pressure sensor usually consists of a pressure

sensing element and a signal processing unit. According to the different types of test

pressure, pressure sensors can be divided into gauge pressure sensors, differential

pressure sensors and absolute pressure sensors. In addition, according to its working

principle, there are many types of resistive, capacitive and so on.