Pressure sensor is one of the more common sensors. The traditional pressure sensor is mainly a mechanical structure device, and the deformation of the elastic part indicates the pressure. However, due to their size and weight, they cannot generate electricity.

The development of semiconductor technology has also led to the emergence of semiconductor pressure sensors. It is characterized by small size, light weight, high precision and good temperature performance. Especially with the development of MEMS technology, semiconductor sensors are developing in the direction of miniaturization, low power consumption and high reliability.

The role of pressure sensors

1. Directly used to measure different pressures: air pressure, hydraulic pressure, hydraulic pressure (including hydraulic pressure), different blood pressure in daily life, etc.;

2. Pressure sensors are used in cars, some elite motorcycles and almost all internal combustion engines;

3. Liquid level: The field equipment used for various liquid level measurement is mainly pressure sensors;

4. Most electronic weighing signals and vehicle weighing signals come from pressure sensors.

Pressure sensors are mainly used to control and monitor certain applications. In the automotive industry, MEMS pressure sensors are mainly used to measure fuel pressure, tire pressure, airbag pressure, and pipeline pressure. In the biomedical field, MEMS pressure sensors are mainly used in diagnostic and detection systems; In the aerospace industry, MEMS pressure sensors are mainly used to control spacecraft and spacecraft position;