REALISATION OF THE PHASE EQUILIBRIUM METHOD IN THE STANDARD LOW FROST-POINT HUMIDITY GENERATOR

G. Mamontov, D. Mamontova, L. Konopelko

Abstract

Results of theoretical analyses of the phase equilibrium method of required low frost-point temperature generation are given, on the basis of which the described standard dynamic humidity generator is designed for testing and calibration of hygrometers. The generator allows to produce the required and exactly known frost-point temperature of vapour-gas mixture of down to -120°C in wide range of mixture flow rates with the estimated uncertainty of ±0.1°C of frost-point temperature, which is almost equal in the whole range.

Keywords

standard low frost-point generator, phase equilibrium method, calibration, thermal and temperature measurement

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IMEKO-WC-2000-TC12-P312.pdf

DOI

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IMEKO TC

TC12 - Temperature and Thermal Measurements

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