WO1999020982A3 - Systeme de mesure de matieres dans une cuve - Google Patents

Systeme de mesure de matieres dans une cuve Download PDF

Info

Publication number
WO1999020982A3
WO1999020982A3 PCT/US1998/021771 US9821771W WO9920982A3 WO 1999020982 A3 WO1999020982 A3 WO 1999020982A3 US 9821771 W US9821771 W US 9821771W WO 9920982 A3 WO9920982 A3 WO 9920982A3
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
materials
backscatter
boundaries
determining
Prior art date
Application number
PCT/US1998/021771
Other languages
English (en)
Other versions
WO1999020982A2 (fr
WO1999020982A9 (fr
Inventor
Gay Early
Original Assignee
Environmental Digital Services
Gay Early
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 Environmental Digital Services, Gay Early filed Critical Environmental Digital Services
Publication of WO1999020982A2 publication Critical patent/WO1999020982A2/fr
Publication of WO1999020982A9 publication Critical patent/WO1999020982A9/fr
Publication of WO1999020982A3 publication Critical patent/WO1999020982A3/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/04—Investigating moisture content
    • 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
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2928—Light, e.g. infrared or ultraviolet for discrete levels using light reflected on the material surface
    • 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
    • G01F23/30—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 floats
    • G01F23/64—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 floats of the free float type without mechanical transmission elements
    • G01F23/68—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means
    • G01F23/686—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means using opto-electrically actuated indicating means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

La présente invention se rapporte à un système de mesure des caractéristiques physiques d'une pluralité de matières séparées les unes des autres par des interfaces et stockées dans un vaisseau ayant des dimensions physiques préétablies. Ledit système comprend un émetteur conçu pour émettre un faisceau d'énergie de longueur d'onde préétablie dirigé vers les diverses matières présentes dans la cuve et générant une rétrodiffusion à partir des diverses interfaces entre les matières; un récepteur conçu pour détecter cette rétrodiffusion; et un circuit de commande conçu pour évaluer le temps de propagation à travers plusieurs des diverses matières en fonction de cette rétrodiffusion, et pour déterminer les caractéristiques physiques des diverses matières en fonction du temps de propagation du faisceau et des dimensions physiques de la cuve.
PCT/US1998/021771 1997-10-17 1998-10-15 Systeme de mesure de matieres dans une cuve WO1999020982A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6193197P 1997-10-17 1997-10-17
US60/061,931 1997-10-17

Publications (3)

Publication Number Publication Date
WO1999020982A2 WO1999020982A2 (fr) 1999-04-29
WO1999020982A9 WO1999020982A9 (fr) 1999-07-08
WO1999020982A3 true WO1999020982A3 (fr) 2001-04-12

Family

ID=22039084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/021771 WO1999020982A2 (fr) 1997-10-17 1998-10-15 Systeme de mesure de matieres dans une cuve

Country Status (1)

Country Link
WO (1) WO1999020982A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005036846B4 (de) * 2005-08-04 2016-11-24 Vega Grieshaber Kg Vorrichtung zum Messen eines Füllstands

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5245200A (en) * 1989-07-10 1993-09-14 Fladda Gerdt H Apparatus and method for preventing blockage of a measuring head for effecting measurements of suspended substances
US5841666A (en) * 1995-12-21 1998-11-24 Endress + Hauser Gmbh + Co. Processor apparatus and method for a process measurement signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5245200A (en) * 1989-07-10 1993-09-14 Fladda Gerdt H Apparatus and method for preventing blockage of a measuring head for effecting measurements of suspended substances
US5841666A (en) * 1995-12-21 1998-11-24 Endress + Hauser Gmbh + Co. Processor apparatus and method for a process measurement signal

Also Published As

Publication number Publication date
WO1999020982A2 (fr) 1999-04-29
WO1999020982A9 (fr) 1999-07-08

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