Gas Manometer Vacuum Pressure Manometer

Gas manometer, Vacuum pressure manometer

When a vacuum is applied to one leg, the liquid rises in that leg and falls in the other. The difference in height, "h," which is the sum of the readings above and below zero, indicates the amount of vacuum. Instruments employing this principle are called manometers.

Vacuum gauges are basic measurement components for vacuum furnace systems and can be found either in vacuum lines or connected directly onto the vacuum chamber. For all intents and purposes, a vacuum gauge is an instrument for measuring pressures below that of atmospheric pressure.

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What is vacuum pressure?

Vacuum is an air pressure measurement that is less than Earth's atmospheric pressure, about 14.7 psi. A perfect vacuum, by definition, is a space where all matter has been removed. This is an idealized description. Vacuum pressures that come close to the “almost no matter” point are difficult and expensive to create.

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