DK1098176T3 - level meter - Google Patents

level meter

Info

Publication number
DK1098176T3
DK1098176T3 DK00122198T DK00122198T DK1098176T3 DK 1098176 T3 DK1098176 T3 DK 1098176T3 DK 00122198 T DK00122198 T DK 00122198T DK 00122198 T DK00122198 T DK 00122198T DK 1098176 T3 DK1098176 T3 DK 1098176T3
Authority
DK
Denmark
Prior art keywords
substance
electrical conductor
electromagnetic signal
outside
lower substance
Prior art date
Application number
DK00122198T
Other languages
Danish (da)
Inventor
Joseph Neven
Achim Bletz
Original Assignee
Krohne Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19958584A external-priority patent/DE19958584C1/en
Application filed by Krohne Sa filed Critical Krohne Sa
Application granted granted Critical
Publication of DK1098176T3 publication Critical patent/DK1098176T3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves

Abstract

There is disclosed a fill-level detector, operating by the radar principle, for gaging the fill level of the lower of two substances filled into and layered one at op the other in a container. The detector incorporates a first electrical conductor and a seco nd electrical conductor which conductors extend parallel to each other in an essentially straight direction and protrude into the lower substance with a generator mounted at the end of the first electrical conductor and, respectively, at the end of the second electrical conductor situated outside the lower substance and outside the upper substan ce for generating and transmitting an electromagnetic signal, and with a transducer mounted at the end of the first electrical conductor and, respectively, of the second electrical conductor outside the first substance and the second substance for capturing a reflected portion of the electromagnetic signal. The electromagnetic signal can be coupled into the lower substance at the end of the first electrical conductor situated in the lower substance and a portion of the electromagnetic signal reflected at the interface betwe en the lower substance and the upper substance can be captured by the transducer. In this fashion, it is possible in the case of two substances layered one atop the other in the container to also determine the fill level of the lower substance even when the upper substanc e displays a very high dielectric constant.
DK00122198T 1999-11-08 2000-10-13 level meter DK1098176T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19953709 1999-11-08
DE19958584A DE19958584C1 (en) 1999-11-08 1999-12-04 Level measurement unit, comprises primary and secondary electrical conductors, a container for two media, an electromagnetic signal generator, and a transducer

Publications (1)

Publication Number Publication Date
DK1098176T3 true DK1098176T3 (en) 2004-07-26

Family

ID=26055475

Family Applications (1)

Application Number Title Priority Date Filing Date
DK00122198T DK1098176T3 (en) 1999-11-08 2000-10-13 level meter

Country Status (4)

Country Link
EP (1) EP1098176B1 (en)
AT (1) ATE263361T1 (en)
CA (1) CA2324172A1 (en)
DK (1) DK1098176T3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT961071B (en) * 1971-09-04 1973-12-10 Cnen PROBE AND INSTALLATION FOR MEASURING THE LEVELS OF INTERFACES OF FLUIDS AND OF THE CONSTANTS OF THE ELETTERS AND OF THE SAME
FR2624968A1 (en) * 1987-12-16 1989-06-23 Whessoe Sa DEVICE FOR MEASURING STORAGE PARAMETERS, SUCH AS LEVEL AND TEMPERATURE, OF LIQUIDS OR FLUIDS OF DIFFERENT DENSITY IN A RESERVOIR
US6121780A (en) * 1996-10-07 2000-09-19 Cruickshank; William T. Material interface level sensing
US5943908A (en) * 1997-09-08 1999-08-31 Teleflex Incorporated Probe for sensing fluid level
US5898308A (en) * 1997-09-26 1999-04-27 Teleflex Incorporated Time-based method and device for determining the dielectric constant of a fluid

Also Published As

Publication number Publication date
ATE263361T1 (en) 2004-04-15
EP1098176A1 (en) 2001-05-09
CA2324172A1 (en) 2001-05-08
EP1098176B1 (en) 2004-03-31

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