Method for measuring liquid levels and flow rates in low-concentration electrolytes

These electrolytes are contained in a container having at least one pair of electrodes and being used as measuring cell. The arrangement of container, electrolyte and two uninsulated electrodes arranged at an arbitrary distance from one another is used as a galvanic cell which is comparable to an ac...

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Bibliographic Details
Main Authors POTHMANN, WERNER., 20249 HAMBURG, DE, HARMS, DIRK, DR., 22559 HAMBURG, DE, POOCK-HAFFMANS, PETER., 22880 WEDEL, DE, STEINBERG, BASTIAN., 22149 HAMBURG, DE
Format Patent
LanguageEnglish
German
Published 20.10.1994
Edition5
Subjects
ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEASURING
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
MEDICAL OR VETERINARY SCIENCE
METERING BY VOLUME
PHYSICS
SURGERY
TARIFF METERING APPARATUS
TESTING
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Summary:These electrolytes are contained in a container having at least one pair of electrodes and being used as measuring cell. The arrangement of container, electrolyte and two uninsulated electrodes arranged at an arbitrary distance from one another is used as a galvanic cell which is comparable to an accumulator. The galvanic cell is used as accumulating element in a relaxation oscillator, in such a manner that the frequency of the relaxation oscillator, which is dependent on the electrode surface covered by the electrolytic fluid, or the changes in frequency caused by changes in the surface of the electrodes covered, are used for measuring the liquid levels and flow rates.
Bibliography:Application Number: DE19934312432