Gaserzeugungsvorrichtung

A device and related method adapted to generate a gas flow containing a precise amount of impurities for calibrating analysers or the like; e.g. hygrometers. The device comprises a membrane (11) through which an impurity gas e.g. water vapour permeates and mixing means to make a mixture of said impu...

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Bibliographic Details
Main Authors MERMOUD, FRANCOIS, WESTMONT, IL 60559, US, BRANDT, MICHAEL D., CHICAGO, IL 60618, US
Format Patent
LanguageGerman
Published 09.02.1995
Edition6
Subjects
CONTROLLING
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TESTING
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Summary:A device and related method adapted to generate a gas flow containing a precise amount of impurities for calibrating analysers or the like; e.g. hygrometers. The device comprises a membrane (11) through which an impurity gas e.g. water vapour permeates and mixing means to make a mixture of said impurity gas and a vector gas sweeping said membrane (11). The pressure of said mixture is substantially constant, but adjustable, to enhance the accuracy of the device.
Bibliography:Application Number: DE19883851814T