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How does digital barometer work?

Updated: 8/9/2023
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11y ago

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I bought a digital weather station recently so I've been studying the various features one of which is a digital barometer. This particular one lets you set the altitude of your house for greater acuracy. A barometer's range as I understand it is from 28 to 32 inches. When the barometer falls it is indicating a change in the weather such as rain or a storm. The lower the number goes the more severe the storm. When it rises it indicates that better weather is coming. Remember, though, a barometer tells you what the weather will be not what the weather is. My instrument seems to predict what the weather will be in about 12 hours with a fair amount of acuracy. By the way the unit I bought was a relatively inexpensive one from Radio Shack and it seems to be fine

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15y ago
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11y ago

Electrical charges read the air pressure multiple times to give a more accurate reading than traditional barometers. Older barometers use either rising Mercury or empty, sealed metal boxes that expand or contract with changing air pressure.

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Related questions

How do barometer-work?

precipitation and humidity


What is a device for measuring atmostpheric pressure?

The most usual devices are barographs and barometers. A barometer can work off an aneroid cell (eg digital aneroid barometer) or a column of mercury (eg Kew Pattern barometer). Barographs usually work off aneroid cells and through a linkage system print the pressure onto a chart (usually changed weekly although there are daily barometers as well). So the main difference is that a barometer gives a spot reading while the barograph is continuous, although it's possible for the readings from a digital barometer like one connected to an Automatic Weather Station to be saved and called up later, or even printed out in graph form. The usual unit for air pressure in meteorological circles is the hectoPascal (hPa) which replaced the millibar some years ago (the units have the same numerical value, though) except for the US which sticks with the old inches of mercury (InHg).


What is a device with a dial or digital face to measure air pressure with thin metal cells that contain pockets of air?

aneroid barometer


What is an aneroid barometer called?

Well, an aneroid barometer, is called an aneroid barometer- but, a barometer measures air pressure, and an aneroid barometer is a barometer that contains no liquid.


What device with a dial or digital face to measure air pressure with thin metal cells that contain pockets of air is called a?

aneroid barometer


What is A device with a dial or digital face to measure air pressure with thin metal cells that contains pockets of air is called?

aneroid barometer


What is a device with a dial or digital face to measure air pressure with thin metal cells that contain pockets of air called?

aneroid barometer


Device with a dial or digital face to measure air pressure with thin metal cells that contain pockets of air is called a?

aneroid barometer


What is a device with a dial or digital face to measure air pressure with thin metal cells that contain pockets of air is called?

aneroid barometer


A device with a dial or digital face to measure air pressure with thin metal cells contain pockets of air is called a?

aneroid barometer


A device with a dial or digital face to measure air pressure with thin metal cells that contain pockets of air is called a?

aneroid barometer


What is the difference between how air pressure is indicated in a mercury barometer and an aneroid barometer?

Usually no difference at all. They can both move a pointer around a circular scale. The scale can be calibrated in both Inches of Mercury (InHg) or Millbars (Mb). An aneroid system can lend itself more easily to a digital display.