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An introduction to differential pressure measurement

Mike Edwards   

Features differential pressure pressure measurement WIKA


There are three methods of measuring pressure. The most common type of pressure measurement is gauge pressure, with reference to atmospheric pressure. This is any pressure applied to the system on top of atmospheric pressure, also known as ambient pressure.

A prime example of gauge pressure measurement is a car’s tire pressure.

Absolute pressure, with reference to a full vacuum, measures pressure independently of changes in atmospheric pressure. Absolute pressure measurement is used in applications where it is critical to monitor the peak of a vacuum, and is needed in laboratories, meteorology, aviation, and other fields.

By measuring differential pressure, users are able to easily and accurately monitor filter conditions, liquid levels in closed tanks, liquid flow rates inside a pipe, and even the output torque of hydraulic motors.

To find out more about the ways to measure differential pressure please visit the full WIKA Canada article here.


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