FR2363787A1 - Sonde optique pour detecter le niveau d'un liquide - Google Patents

Sonde optique pour detecter le niveau d'un liquide

Info

Publication number
FR2363787A1
FR2363787A1 FR7726620A FR7726620A FR2363787A1 FR 2363787 A1 FR2363787 A1 FR 2363787A1 FR 7726620 A FR7726620 A FR 7726620A FR 7726620 A FR7726620 A FR 7726620A FR 2363787 A1 FR2363787 A1 FR 2363787A1
Authority
FR
France
Prior art keywords
level
light
liquid
optical probe
detect
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Withdrawn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
FR7726620A
Other languages
English (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.)
Honeywell Ltd Canada
Honeywell Ltd Great Britain
Original Assignee
Honeywell Ltd Canada
Honeywell Ltd Great Britain
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 Honeywell Ltd Canada, Honeywell Ltd Great Britain filed Critical Honeywell Ltd Canada
Publication of FR2363787A1 publication Critical patent/FR2363787A1/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Withdrawn legal-status Critical Current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
    • G01F23/28—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
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

L'invention concerne une sonde optique pour détecter le niveau d'un matériau ou d'un liquide. Cette sonde comporte deux éléments de transmission de lumière 41, 42 espacés possédant chacun une face 43, 44 réfléchissant la lumière, ces faces étant orientées dans des directions opposées et disposées de façon à ce qu'en fonctionnement la lumière provenant d'une source de lumière 48 soit transmise par lesdites faces vers un détecteur de lumière 50, seulement si ledit niveau est en dessous de la sonde. Détection du niveau d'un liquide.
FR7726620A 1976-09-02 1977-09-01 Sonde optique pour detecter le niveau d'un liquide Withdrawn FR2363787A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA260,450A CA1082053A (fr) 1976-09-02 1976-09-02 Sonde optique pour la detection d'un niveau

Publications (1)

Publication Number Publication Date
FR2363787A1 true FR2363787A1 (fr) 1978-03-31

Family

ID=4106778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726620A Withdrawn FR2363787A1 (fr) 1976-09-02 1977-09-01 Sonde optique pour detecter le niveau d'un liquide

Country Status (4)

Country Link
US (1) US4156149A (fr)
CA (1) CA1082053A (fr)
FR (1) FR2363787A1 (fr)
GB (1) GB1550073A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148188A1 (fr) * 1983-07-01 1985-07-17 BAXTER INTERNATIONAL INC. (a Delaware corporation) Dispositifs mouillables fonctionnant avec des liquides aqueux
WO1989003978A1 (fr) * 1988-03-22 1989-05-05 Conax Buffalo Corporation Detecteur de niveau de liquide de type optique
US5054319A (en) * 1990-09-12 1991-10-08 Fling John J Liquid level sensor and method
US6057772A (en) * 1997-11-13 2000-05-02 Henny Penny Corporation Apparatus and method for optically sensing liquid level in cooking vessels

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DE2804881C3 (de) * 1978-02-04 1980-08-07 Fa. Carl Zeiss, 7920 Heidenheim Gerät zur automatischen Analyse von flüssigen Proben
US4254316A (en) * 1979-08-30 1981-03-03 Clark Control, Inc. Electrical switching apparatus
US4274705A (en) * 1979-09-24 1981-06-23 The Boeing Company Fiberoptic-fed fluid level sensor using a hemiellipsoidal optical element
US4503994A (en) * 1979-10-01 1985-03-12 Chevron Research Company Fiber optic fuel shutoff system
US4303601A (en) * 1980-03-31 1981-12-01 Baxter Travenol Laboratories, Inc. Ventilator humidifier
US4499852A (en) * 1980-07-15 1985-02-19 Shipley Company Inc. Apparatus for regulating plating solution in a plating bath
US4353252A (en) * 1980-10-23 1982-10-12 Cadbury Schweppes Plc Liquid level sensor
EP0074976A1 (fr) * 1981-03-31 1983-03-30 Commonwealth Scientific And Industrial Research Organisation Application de sondes a fibres optiques
US4396353A (en) * 1981-04-13 1983-08-02 Flint & Walling, Inc. Submersible sump pump
US4440022A (en) * 1981-10-14 1984-04-03 Smiths Industries Public Limited Company Liquid-level detection
DE3323365C2 (de) * 1982-09-04 1994-10-20 Gsf Forschungszentrum Umwelt Verfahren und Vorrichtung zur Ausleuchtung von Hohlräumen
DE3247192A1 (de) * 1982-12-21 1984-07-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Faseroptische fluessigkeitsstandsmessvorrichtung
GB2138947B (en) * 1983-04-14 1986-10-08 Chiltern Glass Fibres Limited Improvements in or relating to a method of control of liquid stock
GB8310096D0 (en) * 1983-04-14 1983-05-18 Chiltern Glass Fibres Ltd Control of liquid stock
GB2159620A (en) * 1984-05-29 1985-12-04 Norman Barrie Jones Photoelectric pressure transducer without elastic diaphragm
US4639594A (en) * 1984-12-17 1987-01-27 Carrier Corporation Fiberoptic probe and method of making and using
US4689484A (en) * 1985-05-17 1987-08-25 Mcmahon Robert L Photoelectric leak detection system for double-walled tanks and the like
DE3614130A1 (de) * 1986-04-25 1987-10-29 Spinner Gmbh Elektrotech Fluessigkeitspegelfuehler
US4867872A (en) * 1986-07-28 1989-09-19 Protectaire Systems Co. Automatically adjustable weir and environmentally protected sensor
DE3716538A1 (de) * 1987-05-16 1988-12-08 Timm Elektronik Gmbh Anordnung zur erfassung eines fluessigkeitsfuellstandes
AU596012B2 (en) * 1987-05-29 1990-04-12 Godfrey Howden Proprietary Limited Liquid testing apparatus
US4935621A (en) * 1987-10-30 1990-06-19 Pikulski Joseph L Optical switch with collimating lenses, antifreeze and/or index matching fluid for control of electrical equipment
US4954724A (en) * 1988-04-06 1990-09-04 Koda Hideo H Optical fuel gauge for vehicles
US4877066A (en) * 1988-08-31 1989-10-31 Mazda Motor Manufacturing (Usa) Corporation Apparatus for filling transmission fluid into transmissions
US4950885A (en) * 1989-05-08 1990-08-21 I.V.P. Co. Fluid coupled fiber optic sensor
US4979797A (en) * 1989-10-06 1990-12-25 Imo Industries, Inc. Multi-level fiber-optic liquid-level sensing system
US5075543A (en) * 1990-05-29 1991-12-24 Xerox Corporation Light weight paper sensor using fibers
US5073720A (en) * 1990-07-30 1991-12-17 The United States Of America As Represented By The Secretary Of The Navy Liquid level and volume measurement device
US5186017A (en) * 1990-09-10 1993-02-16 K-Whit Tools, Inc. Refrigerant recovery device
US5200615A (en) * 1991-06-25 1993-04-06 Joram Hopenfeld Method and apparatus for detecting the presence of fluids
US5187366A (en) * 1991-06-25 1993-02-16 Joram Hopenfeld Sensors for detecting leaks
US5362971A (en) * 1993-03-10 1994-11-08 Terrascope Systems, Inc. Fiber optic detection system
US5425624A (en) * 1993-10-22 1995-06-20 Itt Corporation Optical fluid-level switch and controls for bilge pump apparatus
US5712934A (en) * 1996-07-25 1998-01-27 Johnson; Douglas M. Fiber optic infrared sensor
US5984892A (en) * 1996-09-16 1999-11-16 Minnesota Mining And Manufacturing Company Blood aspirator
DE19646410C2 (de) * 1996-11-11 1999-05-27 Herbert Bock Absaugvorrichtung und Verfahren zum Ein- und Ausschalten einer Absaugpumpe
US5785100A (en) * 1997-02-14 1998-07-28 Vickers, Incorporated Liquid level detection system
US6173609B1 (en) * 1997-06-20 2001-01-16 Optical Sensor Consultants, Inc. Optical level sensor
US7234830B1 (en) * 2005-10-03 2007-06-26 Cox Research & Technology, Inc. Optical switch
ITRE20070048A1 (it) * 2007-04-04 2008-10-05 Ufi Innovation Ct Srl '' rilevatore di livello e metodo per rilevare il livello di un fluido in un recipiente''
US7902989B2 (en) * 2007-05-31 2011-03-08 Cox Raleigh L Optical switch
IL187597A0 (en) * 2007-11-22 2008-03-20 Dekel Tzidon Fluid level indicator
US8334501B1 (en) 2008-10-16 2012-12-18 Cox Christopher E Optical switch activator with glowable member
US8633623B2 (en) * 2009-08-18 2014-01-21 Xylem IP Holdings LLC. Encapsulated submersible pump
US8643498B1 (en) 2010-07-13 2014-02-04 Christopher E. Cox Optical switches for tank environments
US9383518B2 (en) 2012-12-14 2016-07-05 Christopher E. Cox Optical switch activator
JP6587346B2 (ja) * 2015-10-14 2019-10-09 鹿島建設株式会社 空洞充填検知装置
US10840045B1 (en) 2019-06-04 2020-11-17 Christopher E. Cox Invertible optical float switch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB906609A (en) * 1959-11-20 1962-09-26 Nat Res Dev Improvements in or relating to photo-electric materials testing equipment
FR1542941A (fr) * 1967-07-22 1968-10-18 Bosch Hausgeraete Gmbh Dispositif optique indicateur de niveau de remplissage de récipients à liquides
FR1593760A (fr) * 1967-11-30 1970-06-01
CH559898A5 (en) * 1974-01-23 1975-03-14 Glutz Blotzheim Nachfolger Ag Electro-optical sonde preventing tank overflow - has two parallel rods, each with diagonal surface at lower extremity

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892378A (en) * 1955-04-26 1959-06-30 Gen Electric Indicating turbidimeter
US3120125A (en) * 1960-08-03 1964-02-04 American Pyrotector Inc Liquid level determining devices and method
US3895235A (en) * 1974-03-18 1975-07-15 Illinois Tool Works Liquid level and specific gravity indicator
US4082959A (en) * 1975-06-27 1978-04-04 Nippondenso Co., Ltd. Liquid level detector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB906609A (en) * 1959-11-20 1962-09-26 Nat Res Dev Improvements in or relating to photo-electric materials testing equipment
FR1542941A (fr) * 1967-07-22 1968-10-18 Bosch Hausgeraete Gmbh Dispositif optique indicateur de niveau de remplissage de récipients à liquides
FR1593760A (fr) * 1967-11-30 1970-06-01
CH559898A5 (en) * 1974-01-23 1975-03-14 Glutz Blotzheim Nachfolger Ag Electro-optical sonde preventing tank overflow - has two parallel rods, each with diagonal surface at lower extremity

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148188A1 (fr) * 1983-07-01 1985-07-17 BAXTER INTERNATIONAL INC. (a Delaware corporation) Dispositifs mouillables fonctionnant avec des liquides aqueux
EP0148188A4 (fr) * 1983-07-01 1987-06-16 Baxter Travenol Lab Dispositifs mouillables fonctionnant avec des liquides aqueux.
WO1989003978A1 (fr) * 1988-03-22 1989-05-05 Conax Buffalo Corporation Detecteur de niveau de liquide de type optique
US4998022A (en) * 1988-03-22 1991-03-05 Conax Buffalo Corporation Optical liquid level sensor using a polytetrafluoroethylene perfluoroalkoxy material
US5054319A (en) * 1990-09-12 1991-10-08 Fling John J Liquid level sensor and method
US6057772A (en) * 1997-11-13 2000-05-02 Henny Penny Corporation Apparatus and method for optically sensing liquid level in cooking vessels

Also Published As

Publication number Publication date
US4156149A (en) 1979-05-22
CA1082053A (fr) 1980-07-22
GB1550073A (en) 1979-08-08

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Legal Events

Date Code Title Description
RE Withdrawal of published application