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aneroid barometer

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aneroid barometer: see barometer barometer , 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
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

aneroid barometer [′an·ə‚rȯid bə′räm·əd·ər]
(engineering)
A barometer which utilizes an aneroid capsule. Also known as aneroid.


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sensitive aneroid barometer that is adapted and standardized, used essentially in aircraft for finding distance higher than sea level, ground, or some other reference point by an evaluation and comparison of air pressures?
Nearly two centuries later, scientists discovered a way of measuring pressure without the use of mercury and the Aneroid barometer came into being.
 
 
 
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