How a Pressure Gauge, Plunger Pressure Gauge & Bourdon Tube Gauge Works

Pressure gauge is used to measure the intensity of a force when applied in a liquid. And to test this a bourdon tube gauge or a plunger gauge.
The bourdon tube gauge has a dial face that will adjust the PSI and needle pointer that is in thru a linkage to bendable metal tube (which is the bourdon tube).
The bourdon tube lets the pressure rise it straightens out because of the difference in areas linking to the inside and outside diameters. This will make the pointer move to let you know the pressure on the dial face.
The plunger pressure gauge moves when the pressure is against the force of the bias spring. This will make the pointer let you know the right amount of pressure on the scale.

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