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GB2074325B - Level indicators for electrically conductive liquids or loose materials - Google Patents

Level indicators for electrically conductive liquids or loose materials

Info

Publication number
GB2074325B
GB2074325B GB8112371A GB8112371A GB2074325B GB 2074325 B GB2074325 B GB 2074325B GB 8112371 A GB8112371 A GB 8112371A GB 8112371 A GB8112371 A GB 8112371A GB 2074325 B GB2074325 B GB 2074325B
Authority
GB
United Kingdom
Prior art keywords
electrically conductive
level indicators
loose materials
conductive liquids
liquids
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB8112371A
Other versions
GB2074325A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Politechnika Wroclawska
Original Assignee
Politechnika Wroclawska
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
Application filed by Politechnika Wroclawska filed Critical Politechnika Wroclawska
Publication of GB2074325A publication Critical patent/GB2074325A/en
Application granted granted Critical
Publication of GB2074325B publication Critical patent/GB2074325B/en
Expired legal-status Critical Current

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
    • G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • 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
    • G01F23/24—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 variations of resistance of resistors due to contact with conductor fluid

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
GB8112371A 1980-04-17 1981-04-21 Level indicators for electrically conductive liquids or loose materials Expired GB2074325B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL22360780A PL126453B1 (en) 1980-04-17 1980-04-17 Material level sensing element for liquids and electrically conductive pourable solid materials

Publications (2)

Publication Number Publication Date
GB2074325A GB2074325A (en) 1981-10-28
GB2074325B true GB2074325B (en) 1984-11-07

Family

ID=20002568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8112371A Expired GB2074325B (en) 1980-04-17 1981-04-21 Level indicators for electrically conductive liquids or loose materials

Country Status (3)

Country Link
DE (1) DE3114678C2 (en)
GB (1) GB2074325B (en)
PL (1) PL126453B1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103321B1 (en) * 1982-09-09 1987-09-16 Shell Internationale Researchmaatschappij B.V. Capacitive level gauge
US4601201A (en) * 1984-03-14 1986-07-22 Tokyo Tatsuno Co., Ltd. Liquid level and quantity measuring apparatus
DE3902107A1 (en) * 1989-01-25 1990-08-02 Kessler Franz Capacitive filling level and level measuring device
JPH0324425A (en) * 1989-06-20 1991-02-01 Murata Mfg Co Ltd Displacement-amount measuring apparatus
DE3926218A1 (en) * 1989-07-07 1991-01-10 Merckens J G Gmbh & Co Kg Level measurement arrangement esp. for multiple phase mixtures - has rod sensor with individual electrodes over rod length connected to evaluation device
US5265482A (en) * 1991-05-21 1993-11-30 E. I. Du Pont De Nemours And Company Method of sampling a container
US5406843A (en) * 1993-10-27 1995-04-18 Kdi Corporation, Inc. Digital liquid level sensing apparatus
US6138508A (en) * 1993-10-27 2000-10-31 Kdi Precision Products, Inc. Digital liquid level sensing apparatus
US5613399A (en) * 1993-10-27 1997-03-25 Kdi Precision Products, Inc. Method for liquid level detection
DE4442711A1 (en) * 1994-12-01 1996-06-05 Claas Ohg Capacitive measuring device
GB9519006D0 (en) * 1995-09-16 1995-11-15 Rolls Royce & Ass Capacitance probe
DE19644777C1 (en) * 1996-10-28 1998-06-04 Sican Gmbh Filling level indicator sensors for automobile fuel tank
NO308333B1 (en) * 1997-04-08 2000-08-28 Sentech As Device for capacitive electrical detection or measurement
DE19916979A1 (en) * 1999-04-15 2000-11-02 Sican Gmbh Level measurement method and level sensor
RU2239164C2 (en) * 2002-11-18 2004-10-27 Годнев Александр Геннадьевич Capacitance-type level gage with boom
DE10345707A1 (en) * 2003-10-01 2005-04-21 Volkswagen Ag Method for level detection in a container and corresponding level measurement system
DE102004004923B4 (en) * 2004-01-27 2012-12-13 Frank Bayer Device for capacitive level measurement
EP1677085A3 (en) * 2004-12-31 2007-08-01 Moonhaven LLC Capacitive level sensor
ES2311317B2 (en) * 2005-09-08 2010-10-13 Universitat Politecnica De Catalunya METHOD AND APPARATUS FOR MEASURING THE LEVEL OF LIQUIDS, THE THICKNESS OF LAYERS OF STRATIFIED LIQUIDS AND THE GRADIENT OF CONCENTRATIONS IN NON-HOMOGENEOUS LIQUIDS.
CN102879053A (en) * 2012-10-15 2013-01-16 江苏奥力威传感高科股份有限公司 Probe structure of multi-contact water sensor
CN104596611B (en) * 2015-02-06 2018-10-23 深圳市易流科技股份有限公司 A kind of liquid level sensor
DE102015013886A1 (en) * 2015-10-28 2017-05-04 Audi Ag Level determination device, fluid container arrangement and method for operating a filling level determination device
JP7733835B2 (en) * 2022-07-28 2025-09-03 日本航空電子工業株式会社 liquid level gauge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166497B (en) * 1960-04-13 1964-03-26 Wmf Wuerttemberg Metallwaren Device for controlling the filling of a container with different amounts of liquid
NO742093L (en) * 1974-06-10 1975-12-11 Navaltronic As

Also Published As

Publication number Publication date
DE3114678C2 (en) 1984-04-12
PL223607A1 (en) 1981-10-30
GB2074325A (en) 1981-10-28
DE3114678A1 (en) 1982-01-14
PL126453B1 (en) 1983-08-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee