Pressure Sensor Terminology

Pressure sensor terminology

Standard pressure

The pressure represented by the atmospheric pressure is greater than the atmospheric pressure, and the pressure less than the atmospheric pressure is called the negative pressure.

Absolute pressure

The absolute vacuum is the standard pressure.

Relative pressure

The size of the pressure for comparing objects (standard pressure).

Atmospheric pressure

Refers to atmospheric pressure. The standard atmospheric pressure (1 atm) corresponds to the pressure of a 760 mm mercury column.


Refers to sub-atmospheric pressure conditions. 1 Torr = 1/760 atmosphere (atm).

Detection pressure range

Refers to the sensor pressure range.

Can withstand pressure

When the pressure is restored to the detection pressure, the pressure can not withstand the decline of its performance

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