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Brief facts about pressure gauge:

Pressure measurement is the measurement of an applied force by a fluid on a surface. Pressure is typically measured in units of force per unit of surface area. Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure and display pressure mechanically are called pressure gauges, vacuum gauges or compound gauges. The widely used Bourdon gauge is a mechanical device, which both measures and indicates and is probably the best known type of gauge. A vacuum gauge is used to measure pressures lower than the ambient atmospheric pressure, which is set as the zero point, in negative values. Most gauges measure pressure relative to atmospheric pressure as the zero point, so this form of reading is simply referred to as "gauge pressure". However, anything greater than total vacuum is technically a form of pressure.

Air core gauge - An air core gauge is a specific type of rotary actuator in an analog display gauge that allows an indicator to rotate a full 360 degrees. It is used in gauges and displays, most commonly automotive instrument clusters. A typical automotive application is shown at the right.

Barometer - A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather.

Deadweight tester - A dead weight tester apparatus uses known traceable weights to apply pressure to a fluid for checking the accuracy of readings from a pressure gauge.

Dynamic pressure - Dynamic pressure is the increase in a moving fluid's pressure over its static value due to motion. In this way it can be thought of as the fluid's kinetic energy per unit volume. In both incompressible and compressible fluid dynamics, dynamic pressure, q or Q, defined by...

Force gauge - A force gauge is a measuring instrument used to measure forces. Applications exist in research and development, laboratory, quality, production and field environment. There are two kinds of force gauges today: mechanical and digital force gauges.

Gauge - In science and engineering, a dimensional gauge or simply gauge is a device used to make measurements or to display certain dimensional information.

Pressure gauges

Underwater diving safety equipment

Vacuum