aneroid barometer

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Related to aneroid barometer: mercury barometer

aneroid barometer:

see barometerbarometer
, instrument for measuring atmospheric pressure. It was invented in 1643 by the Italian scientist Evangelista Torricelli, who used a column of water in a tube 34 ft (10.4 m) long.
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aneroid barometer

[′an·ə‚rȯid bə′räm·əd·ər]

(engineering)

A barometer which utilizes an aneroid capsule. Also known as aneroid.

aneroid barometer

An instrument that measures the atmospheric pressure. It consists of a cylindrical vacuum chamber with corrugated tops and sides. A system of springs within the chamber prevents the chamber from collapsing as a result of outside air pressure. A pointer through a suitable gearing indicates the expansion and contraction of the aneroid, according to the atmospheric pressure. Also known as a siphon chamber.

aneroid barometer

a device for measuring atmospheric pressure without the use of fluids. It consists of a partially evacuated metal chamber, the thin corrugated lid of which is displaced by variations in the external air pressure. This displacement is magnified by levers and made to operate a pointer

References in periodicals archive ?

The example shown here is one of these banjo aneroid barometers, dating to the late 19th/early 20th century.

ANTIQUES: Whatever the weather

Limited Tenders are invited for Procurement Of Aneroid Barometer

Procurement of aneroid barometer

Their website boasts of "an incredible variety of weather predictors, from conventional mercury and aneroid barometers.