VACUUM GAUGE

It is called vacuum gauge to an instrument that allows the measurement of pressure when it is less than the pressure of the atmosphere . That is why vacuum gauges are said to measure vacuum .

Vacuum gauge

Remember that atmospheric pressure or pressure of the atmosphere reflects the force per unit area exerted by the air on the planetary surface. It is a physical quantity that indicates how the force is projected perpendicular to each unit of surface.

In various industrial sectors and in the field of research , work is usually done in vacuum conditions. For this, a vacuum gauge is needed to help measure and control the values.

Vacuum gauges have sensors that can measure pressure with great accuracy beyond the gas class. These devices also stand out for their stability and low dependence on temperature.

Specifically, what a vacuum gauge does is measure how pressure drops in a given environment. The engines , for example, function as compressors , since gases aspirated and compressed. When a leak occurs, performance drops. That's why it's important to ensure there are no leaks - to maintain performance. The vacuum gauge, with its measurements, reflects eventual leaks.

It is important to mention that there are different kinds of vacuum gauges . There are vacuum gauges that connect to a pressure gauge to synchronize the throttles when the engine has several carburettors. Other vacuum gauges are U-shaped gauges that are attached to a container that has full vacuum.

Many and varied, as we have mentioned, are the types of vacuum gauges that exist. However, it should be noted that among the most relevant is the so-called McLeod vacuum gauge. From it, we can highlight the following hallmarks:
-It was created in the second half of the 18th century, specifically in 1784, by the scientist Herbert G. McLeod.
-It is characterized because it is very precise when it comes to “calculating” pressures lower than what would be the pressure of the atmosphere.
-It works proceeding to compress the relevant gas sample with mercury.

At present we cannot ignore either that absolute vacuum gauges are used to undertake a long list of functions. Specifically, among the most frequent are the annealing of certain materials, the analysis of surfaces, the vacuum drying of different foods, the creation of semiconductor elements, the drying of the insulating paper, the electronic deposition, the welding by emission of electrons, evaporative coating ...

In motor workshops, we come across the fact that the vacuum gauge becomes a fundamental part of the daily work of its professionals. And it is that thanks to this device they can detect problematic situations that can generate difficulties for vehicle drivers. Specifically, when they detect that there is an irregular vacuum, they report that it can lead to unstable idling, sudden engine stops, increased fuel consumption ...

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