JPS5051761A - - Google Patents

Info

Publication number
JPS5051761A
JPS5051761A JP49098454A JP9845474A JPS5051761A JP S5051761 A JPS5051761 A JP S5051761A JP 49098454 A JP49098454 A JP 49098454A JP 9845474 A JP9845474 A JP 9845474A JP S5051761 A JPS5051761 A JP S5051761A
Authority
JP
Japan
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.)
Pending
Application number
JP49098454A
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 filed Critical
Publication of JPS5051761A publication Critical patent/JPS5051761A/ja
Pending 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
    • G01F23/28—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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
JP49098454A 1973-08-29 1974-08-29 Pending JPS5051761A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00392849A US3853005A (en) 1973-08-29 1973-08-29 Interface measuring apparatus

Publications (1)

Publication Number Publication Date
JPS5051761A true JPS5051761A (ja) 1975-05-08

Family

ID=23552261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49098454A Pending JPS5051761A (ja) 1973-08-29 1974-08-29

Country Status (4)

Country Link
US (1) US3853005A (ja)
JP (1) JPS5051761A (ja)
DE (1) DE2440402A1 (ja)
FR (1) FR2242668B3 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61102825U (ja) * 1984-12-07 1986-06-30
JPS63190445U (ja) * 1987-05-29 1988-12-07
JP2002340653A (ja) * 2001-05-15 2002-11-27 Kyoto Platec:Kk 静電容量式液面センサー

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3965416A (en) * 1974-05-28 1976-06-22 Tylan Corporation Dielectric-constant measuring apparatus
US3936736A (en) * 1974-08-28 1976-02-03 Lockheed Aircraft Corporation Radome test instrument
US3922914A (en) * 1974-09-18 1975-12-02 Us Interior Bed level monitor
FR2360873A1 (fr) * 1976-08-03 1978-03-03 Ito Patent Ag Procede de mesure du niveau du contenu de reservoirs ou recipients et dispositif pour la mise en oeuvre de ce procede
DK149870C (da) * 1976-12-30 1987-03-23 Danske Sukkerfab Fremgangsmaade til koncentrationsmaaling i et medium
US4135397A (en) * 1977-06-03 1979-01-23 Krake Guss L Level measuring system
DE3115200A1 (de) * 1981-04-15 1983-02-03 Philips Kommunikations Industrie AG, 8500 Nürnberg Verfahren zur messung von impulslaufzeiten, fehlerorten und daempfung auf kabeln und lichtwellenleitern
US4418570A (en) * 1981-12-08 1983-12-06 Exxon Production Research Co. Ice thickness inductor probe
US4495807A (en) * 1983-02-24 1985-01-29 The United States Of America As Represented By The United States Department Of Energy Precision liquid level sensor
US4786857A (en) * 1986-04-24 1988-11-22 Charles L. Mohr Methods and apparatus for time domain reflectometry determination of relative proportion, fluid inventory and turbulence
US4866371A (en) * 1986-09-15 1989-09-12 Chevron Research Company Sample accommodator and method for the measurement of dielectric properties
GB2260235B (en) * 1991-09-26 1995-07-12 Schlumberger Ind Ltd Measurement of liquid level
MY108816A (en) * 1992-05-28 1996-11-30 Shell Int Research An apparatus for measuring the water bottom of a product storage tank and providing water bottom informaiton
US5384541A (en) * 1993-03-05 1995-01-24 Hewlett-Packard Company Precision timed delay measurement using phaselocked CW technique
US5376888A (en) * 1993-06-09 1994-12-27 Hook; William R. Timing markers in time domain reflectometry systems
US5583544A (en) * 1994-10-06 1996-12-10 Videojet Systems International, Inc. Liquid level sensor for ink jet printers
US5554936A (en) * 1994-12-01 1996-09-10 Mohr; Charles L. Mixed fluid time domain reflectometry sensors
US5609059A (en) * 1994-12-19 1997-03-11 The Regents Of The University Of California Electronic multi-purpose material level sensor
US5717337A (en) * 1996-01-16 1998-02-10 Kelly; John M. Time-domain reflectometer based measurement system
AU6756198A (en) * 1996-10-07 1998-06-22 Berwind Corporation Material interface level sensing
US6085589A (en) * 1996-12-23 2000-07-11 Venture Measurement Company Llc Material level sensing system calibration
US5819582A (en) * 1997-03-31 1998-10-13 Kelly; John M. Slow wave time-domain reflectometer point level sensor
US6018247A (en) * 1998-02-19 2000-01-25 Kelly; John Michael Time domain reflectometer linear position sensing
US6144211A (en) 1998-06-25 2000-11-07 Mohr; Charles L. Cross-channel probe system for time domain reflectometry detection of fluid flow
US6477474B2 (en) * 1999-01-21 2002-11-05 Rosemount Inc. Measurement of process product dielectric constant using a low power radar level transmitter
US6782328B2 (en) * 1999-01-21 2004-08-24 Rosemount Inc. Measurement of concentration of material in a process fluid
CA2310417C (en) 2000-05-30 2010-02-23 Esi Environmental Sensors Inc. Fluid sensor
US6662648B2 (en) * 2000-09-06 2003-12-16 Vega Grieshaber Kg Filling level measuring device
US7592946B2 (en) * 2005-02-14 2009-09-22 Endress + Hauser Gmbh + Co. Kg Level measurement arrangement
DE202008006344U1 (de) 2008-05-08 2008-10-16 Sensorentechnologie Gettorf Gmbh Abschlussteil
GB2505190A (en) * 2012-08-21 2014-02-26 Schrader Electronics Ltd Level sensing in a vehicle fuel tank using electromagnetic fields
US8963769B2 (en) * 2012-10-16 2015-02-24 Magnetrol International, Incorporated Guided wave radar interface measurement medium identification
US9074922B2 (en) * 2012-12-10 2015-07-07 Ge-Hitachi Nuclear Energy Americas Llc Systems and methods for remotely measuring a liquid level using time-domain reflectometry (TDR)
US10055519B2 (en) * 2014-10-23 2018-08-21 Honeywell International Inc. Pulse shape change for interface determination

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296862A (en) * 1963-10-02 1967-01-10 Atomic Power Dev Ass Inc Fluid level measuring apparatus
US3424002A (en) * 1965-06-01 1969-01-28 Marathon Oil Co Apparatus for the determination of location of interfaces between different materials
US3695107A (en) * 1970-06-01 1972-10-03 Hertz Carl H Method of measuring the level of a material in a tank, and an apparatus for practicing this method
US3703829A (en) * 1971-04-19 1972-11-28 Honeywell Inc Liquid quantity gaging system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61102825U (ja) * 1984-12-07 1986-06-30
JPS63190445U (ja) * 1987-05-29 1988-12-07
JP2002340653A (ja) * 2001-05-15 2002-11-27 Kyoto Platec:Kk 静電容量式液面センサー

Also Published As

Publication number Publication date
FR2242668B3 (ja) 1977-06-17
US3853005A (en) 1974-12-10
FR2242668A1 (ja) 1975-03-28
DE2440402A1 (de) 1975-03-06

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