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On a Method for Increasing the Resolution of Atmospheric Pressure Measurements

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  • 1 Federal Bureau of Measurements, Mike Alasa 14, 11000 Belgrade, Yugoslavia
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Abstract

It is known that conventional methods for determining atmospheric pressure by measuring the length-height of the mercury column in Torriceli's Tube (TT) give resolution up to 1 Pa. A method is presented in this note for determining atmospheric pressure by measuring mercury column mass in TT which facilitates measurement with a resolution up to 0.01 Pa; this is approximately 100 times the resolution afforded by conventional methods.

The application of this method requires measurement equipment available in a large number of laboratories worldwide, and it may be used in different areas of scientific research, using various measurement techniques and in experimental physics.

Abstract

It is known that conventional methods for determining atmospheric pressure by measuring the length-height of the mercury column in Torriceli's Tube (TT) give resolution up to 1 Pa. A method is presented in this note for determining atmospheric pressure by measuring mercury column mass in TT which facilitates measurement with a resolution up to 0.01 Pa; this is approximately 100 times the resolution afforded by conventional methods.

The application of this method requires measurement equipment available in a large number of laboratories worldwide, and it may be used in different areas of scientific research, using various measurement techniques and in experimental physics.

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