Fremgangsmåde til detektion af en gasboble i en væske

The presence of gas bubbles within the measurement zone of an enclosed cell for determination of physical or chemical properties of a liquid is detected by also measuring the electrical conductivity S under two different pressure conditions, and comparing the value delta S = (S1-S2) / S1 against a p...

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Bibliographic Details
Main Authors GRUEBLER, ROBERT, STEINBOECK, WOLF-DIETRICH, LANDSCHUETZER, EGON
Format Patent
LanguageDanish
Published 25.02.2008
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
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Summary:The presence of gas bubbles within the measurement zone of an enclosed cell for determination of physical or chemical properties of a liquid is detected by also measuring the electrical conductivity S under two different pressure conditions, and comparing the value delta S = (S1-S2) / S1 against a permitted threshold value k. The presence of gas bubbles within the measurement zone of an enclosed cell for determination of physical or chemical properties of a liquid is detected by also measuring the electrical conductivity S under two different pressure conditions, and comparing the value delta S = (S1-S2) / S1 against a permitted threshold value k. Electrical conductivity measurements S1 and S2 are made at, respectively, atmospheric pressure and 100-400 mbar, preferably 250 mbar. Comparison of the standardised value delta S / S1 = (S1-S2) / S1 with a permitted threshhold value k for the liquid, provides indication of the validity of the subsequent measurements.
Bibliography:Application Number: DK20040450141T