The working principle of the pressure sensor mainly depends on the deformation

of the shaft or diaphragm to measure the pressure. The resistive pressure sensor

determines the pressure by measuring the resistance value change caused by the

deformation of the elastic metal film under the action of external pressure. The

capacitive pressure sensor uses the capacitance value change of aluminum film

and conductive glue under the action of external pressure to infer the pressure.

As an important part of modern technology, pressure sensors have powerful and

diversified functions. Whether in sophisticated industrial control systems or harsh

environmental monitoring scenarios, it accurately senses pressure changes and

converts them into processable electrical signals. In the petroleum, chemical, energy

and other industries, pressure sensors monitor the pressure status of pipelines,

storage tanks and other equipment in real time to ensure production safety and avoid

potential risks. In the medical field, it is used to monitor patients' vital signs, such as

blood pressure, breathing, etc., to provide doctors with key diagnosis and treatment

basis. With the progress of science and technology, pressure sensors are developing

towards higher accuracy, wider measurement range and stronger adaptability, providing

more accurate and reliable pressure measurement solutions for all walks of life.