EP1177417A4 - Procede et appareil de detection de niveau de liquide dans un contenant - Google Patents

Procede et appareil de detection de niveau de liquide dans un contenant

Info

Publication number
EP1177417A4
EP1177417A4 EP00905654A EP00905654A EP1177417A4 EP 1177417 A4 EP1177417 A4 EP 1177417A4 EP 00905654 A EP00905654 A EP 00905654A EP 00905654 A EP00905654 A EP 00905654A EP 1177417 A4 EP1177417 A4 EP 1177417A4
Authority
EP
European Patent Office
Prior art keywords
container
detection
fluid level
fluid
level
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.)
Withdrawn
Application number
EP00905654A
Other languages
German (de)
English (en)
Other versions
EP1177417A1 (fr
Inventor
R Bruce Draper
Robert W Griffiths
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.)
Rocky Mountain Research Inc
Original Assignee
Rocky Mountain Research Inc
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 Rocky Mountain Research Inc filed Critical Rocky Mountain Research Inc
Publication of EP1177417A1 publication Critical patent/EP1177417A1/fr
Publication of EP1177417A4 publication Critical patent/EP1177417A4/fr
Withdrawn legal-status Critical Current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
    • G01F23/266—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 measuring circuits therefor
    • 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
    • G01F23/265—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 for discrete levels
    • 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
    • G01F23/268—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 mounting arrangements of probes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
EP00905654A 1999-01-19 2000-01-19 Procede et appareil de detection de niveau de liquide dans un contenant Withdrawn EP1177417A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11630299P 1999-01-19 1999-01-19
US116302P 1999-01-19
PCT/US2000/001212 WO2000042395A1 (fr) 1999-01-19 2000-01-19 Procede et appareil de detection de niveau de liquide dans un contenant

Publications (2)

Publication Number Publication Date
EP1177417A1 EP1177417A1 (fr) 2002-02-06
EP1177417A4 true EP1177417A4 (fr) 2003-07-23

Family

ID=22366374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00905654A Withdrawn EP1177417A4 (fr) 1999-01-19 2000-01-19 Procede et appareil de detection de niveau de liquide dans un contenant

Country Status (3)

Country Link
EP (1) EP1177417A4 (fr)
AU (1) AU2730300A (fr)
WO (1) WO2000042395A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20010269A1 (it) * 2001-11-20 2003-05-20 Askoll Holding Srl Dispositivo perfezionato per il rilevamento di livello di liquido particolarmente per pompe sommerse.
DE102010001605A1 (de) * 2010-02-04 2011-08-04 Fresenius Medical Care Deutschland GmbH, 61352 Sensorsystem zur Füllstandsdetektion eines Fluids in einem Gefäß
CN102288257B (zh) * 2011-07-28 2012-11-28 南昌大学 一种使用方波信号的液位检测装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111353A2 (fr) * 1982-12-13 1984-06-20 Shell Internationale Researchmaatschappij B.V. Dispositif de détection de l'interface entre fluide de couverture et saumure dans un procédé d'exploitation minière par dissolution
US4601201A (en) * 1984-03-14 1986-07-22 Tokyo Tatsuno Co., Ltd. Liquid level and quantity measuring apparatus
US5142909A (en) * 1986-09-29 1992-09-01 Baughman James S Material level indicator
WO1996033393A1 (fr) * 1995-04-17 1996-10-24 Kdi Precision Products, Inc. Appareilage de detection numerique du niveau d'un liquide

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005407A (en) * 1988-10-11 1991-04-09 Level Electronics, Inc. Fluid level sensing system
US5051921A (en) * 1989-11-30 1991-09-24 David Sarnoff Research Center, Inc. Method and apparatus for detecting liquid composition and actual liquid level
US5135485A (en) * 1991-02-25 1992-08-04 Louis Cohen Capacitance-type fluid level sensor for i.v. and catheter bags

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111353A2 (fr) * 1982-12-13 1984-06-20 Shell Internationale Researchmaatschappij B.V. Dispositif de détection de l'interface entre fluide de couverture et saumure dans un procédé d'exploitation minière par dissolution
US4601201A (en) * 1984-03-14 1986-07-22 Tokyo Tatsuno Co., Ltd. Liquid level and quantity measuring apparatus
US5142909A (en) * 1986-09-29 1992-09-01 Baughman James S Material level indicator
WO1996033393A1 (fr) * 1995-04-17 1996-10-24 Kdi Precision Products, Inc. Appareilage de detection numerique du niveau d'un liquide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0042395A1 *

Also Published As

Publication number Publication date
AU2730300A (en) 2000-08-01
WO2000042395A1 (fr) 2000-07-20
EP1177417A1 (fr) 2002-02-06
WO2000042395A9 (fr) 2001-10-11

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Effective date: 20130801