FR2538545A1 - Dispositif de mesure du niveau d'un liquide dans un reservoir - Google Patents

Dispositif de mesure du niveau d'un liquide dans un reservoir Download PDF

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Publication number
FR2538545A1
FR2538545A1 FR8221799A FR8221799A FR2538545A1 FR 2538545 A1 FR2538545 A1 FR 2538545A1 FR 8221799 A FR8221799 A FR 8221799A FR 8221799 A FR8221799 A FR 8221799A FR 2538545 A1 FR2538545 A1 FR 2538545A1
Authority
FR
France
Prior art keywords
fibers
polished
light rays
liquid
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.)
Granted
Application number
FR8221799A
Other languages
English (en)
French (fr)
Other versions
FR2538545B1 (enExample
Inventor
Pierre Pelloux-Gervais
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.)
Air Liquide SA
Original Assignee
Air Liquide SA
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 Air Liquide SA filed Critical Air Liquide SA
Priority to FR8221799A priority Critical patent/FR2538545A1/fr
Publication of FR2538545A1 publication Critical patent/FR2538545A1/fr
Application granted granted Critical
Publication of FR2538545B1 publication Critical patent/FR2538545B1/fr
Granted legal-status Critical Current

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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
    • G01F23/2924—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms for several discrete levels, e.g. with more than one light-conducting sensing element
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
    • G02B17/086—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors wherein the system is made of a single block of optical material, e.g. solid catadioptric systems

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)
FR8221799A 1982-12-27 1982-12-27 Dispositif de mesure du niveau d'un liquide dans un reservoir Granted FR2538545A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8221799A FR2538545A1 (fr) 1982-12-27 1982-12-27 Dispositif de mesure du niveau d'un liquide dans un reservoir

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8221799A FR2538545A1 (fr) 1982-12-27 1982-12-27 Dispositif de mesure du niveau d'un liquide dans un reservoir

Publications (2)

Publication Number Publication Date
FR2538545A1 true FR2538545A1 (fr) 1984-06-29
FR2538545B1 FR2538545B1 (enExample) 1985-04-19

Family

ID=9280521

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8221799A Granted FR2538545A1 (fr) 1982-12-27 1982-12-27 Dispositif de mesure du niveau d'un liquide dans un reservoir

Country Status (1)

Country Link
FR (1) FR2538545A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0456084A1 (de) * 1990-05-05 1991-11-13 Fedag Flüssigkeitssauger
EP0846942A3 (en) * 1996-12-06 1999-04-28 Ingenjörsfirma Ultrac AB Detection device for monitoring spaces in culverts and method for carrying through said monitoring
WO2010012468A1 (de) * 2008-07-31 2010-02-04 Sms Siemag Ag Giessspiegelmessung in einer kokille durch ein faseroptisches messverfahren
CN104948261A (zh) * 2015-04-29 2015-09-30 宁波大叶园林设备有限公司 光导显示润滑油位的机油标尺及发动机点燃和润滑的方法
GB2550149A (en) * 2016-05-10 2017-11-15 Linde Ag A cylinder for pressurised liquefied gas and a method of calculating the liquid level

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB626576A (en) * 1947-06-23 1949-07-18 Lucas Ltd Joseph Improvements relating to liquid level indicators
US3466928A (en) * 1967-09-15 1969-09-16 Gen Motors Corp Fiber optic liquid level indicator
FR2112135A7 (enExample) * 1970-11-06 1972-06-16 Accumulateurs Fixes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB626576A (en) * 1947-06-23 1949-07-18 Lucas Ltd Joseph Improvements relating to liquid level indicators
US3466928A (en) * 1967-09-15 1969-09-16 Gen Motors Corp Fiber optic liquid level indicator
FR2112135A7 (enExample) * 1970-11-06 1972-06-16 Accumulateurs Fixes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0456084A1 (de) * 1990-05-05 1991-11-13 Fedag Flüssigkeitssauger
EP0846942A3 (en) * 1996-12-06 1999-04-28 Ingenjörsfirma Ultrac AB Detection device for monitoring spaces in culverts and method for carrying through said monitoring
WO2010012468A1 (de) * 2008-07-31 2010-02-04 Sms Siemag Ag Giessspiegelmessung in einer kokille durch ein faseroptisches messverfahren
CN102112253A (zh) * 2008-07-31 2011-06-29 Sms西马格股份公司 通过纤维光学的测量方法在结晶器中的铸造液面测量
CN104948261A (zh) * 2015-04-29 2015-09-30 宁波大叶园林设备有限公司 光导显示润滑油位的机油标尺及发动机点燃和润滑的方法
GB2550149A (en) * 2016-05-10 2017-11-15 Linde Ag A cylinder for pressurised liquefied gas and a method of calculating the liquid level

Also Published As

Publication number Publication date
FR2538545B1 (enExample) 1985-04-19

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