What is the difference between a barometer and aneroid barometer

Mercury Barometer: Mercury barometer measures the external pressure by measuring the rise or the height of mercury inside the vertical glass tube. Aneroid Barometer: Since an aneroid barometer is a solid and compact device, it is easy to handle and transport.

Mercury Barometer: The mercury barometer is large about 3 feet high and fragile it is hard to handle and transport. Aneroid Barometer: It is easy to take a measurement from the aneroid barometer since it directly gives a value. Mercury Barometer: It is hard to take a measurement from the mercury barometer since the height should be measured accurately after it gets balanced.

Aneroid Barometer: The aneroid barometer need machinery for its construction. Mercury Barometer: Mercury barometer needs no machinery for the construction.

Aneroid Barometer: Aneroid barometers are stable devices. Mercury Barometer: Mercury barometers are unstable. Aneroid Barometer: Aneroid barometers are used in homes, recreational boats, aircrafts, etc. Mercury Barometer: Mercury barometers are used in laboratories, for weather forecasting, to determine the altitude of a place, etc. A barometer is a system that is used to measure atmospheric pressure.

There are many types of barometers. Aneroid barometer and mercury barometer are such two types. Because air pressure is basically the same indoors and out, a barometer can be placed inside or outside. For home use, hang a barometer on a wall in a place where people can read it conveniently.

In most cases, this is an indoor wall, but outdoor walls work, too. Because most buildings are not built air-tight, air pressure can equalize inside the building, so yes, you are generally under the same air pressure inside a building as you are outside. Inside air leaks through bathroom, stove and other vents. Cool the home by running the air conditioner, opening windows on a cool day or using ceiling fans. Cool air sinks, suppressing air molecules and increasing air pressure.

Warmer air rises, lowering air pressure. An increase in temperature leads to a decrease in pressure. The air pressure is lower inside a building usually but not for the reason you think.

The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure.

It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.

In a barometer, a column of mercury in a glass tube rises or falls as the weight of the atmosphere changes. Begin typing your search term above and press enter to search. A manometer is a good example, as it uses the surface area and weight of a column of liquid to both measure and indicate pressure. How are aneroid and mercury barometers different? Category: news and politics weather.

There are many types of barometers. The main difference between aneroid and mercury barometer is that aneroid barometer measures the atmospheric pressure using the expansion of a metal whereas mercury barometer measures the atmospheric pressure by adjusting the height of mercury inside a tube.

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This is also equal to the pressure of the immediate surface water molecules. By principle, the hydrostatic pressure at a same height is similar for any liquid. Therefore, the pressure of a point inside the tube at the same height of the external liquid surface is equal to the external pressure. Since the pressure at the top of the tube is created by a vacuum, it is zero; also, the pressure difference between the top and the bottom of the liquid column is equal to the external pressure.

By equating the force created by the pressure difference, to the weight of the liquid column, an equation for the external pressure can be obtained. Mercury is used as the liquid because of its high density. The common unit used in mercury barometer is mercury millimeter or mmHg.