FR3039893B1 - DEVICE FOR MEASURING LIQUID LEVEL BY OPTICAL REFLECTROMETRY, STRUCTURE COMPRISING SUCH A DEVICE AND CORRESPONDING MEASUREMENT METHOD - Google Patents

DEVICE FOR MEASURING LIQUID LEVEL BY OPTICAL REFLECTROMETRY, STRUCTURE COMPRISING SUCH A DEVICE AND CORRESPONDING MEASUREMENT METHOD Download PDF

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Publication number
FR3039893B1
FR3039893B1 FR1557504A FR1557504A FR3039893B1 FR 3039893 B1 FR3039893 B1 FR 3039893B1 FR 1557504 A FR1557504 A FR 1557504A FR 1557504 A FR1557504 A FR 1557504A FR 3039893 B1 FR3039893 B1 FR 3039893B1
Authority
FR
France
Prior art keywords
liquid level
optical
reflectrometry
measurement method
corresponding measurement
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.)
Expired - Fee Related
Application number
FR1557504A
Other languages
French (fr)
Other versions
FR3039893A1 (en
Inventor
Jocelyn Perisse
Jean-Reynald Mace
Sylvain Girard
Emmanuel Marin
Serena Rizzolo
Aziz Boukenter
Youcef Ouerdane
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.)
Centre National de la Recherche Scientifique CNRS
Areva NP SAS
Universite Jean Monnet Saint Etienne
Original Assignee
Centre National de la Recherche Scientifique CNRS
Areva NP SAS
Universite Jean Monnet Saint Etienne
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 Centre National de la Recherche Scientifique CNRS, Areva NP SAS, Universite Jean Monnet Saint Etienne filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR1557504A priority Critical patent/FR3039893B1/en
Priority to CN201680055241.3A priority patent/CN108369123A/en
Priority to PCT/EP2016/068543 priority patent/WO2017021447A1/en
Publication of FR3039893A1 publication Critical patent/FR3039893A1/en
Priority to ZA2018/00925A priority patent/ZA201800925B/en
Application granted granted Critical
Publication of FR3039893B1 publication Critical patent/FR3039893B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G01F23/0023—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 with a probe suspended by a wire or thread
    • 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
    • G01F23/04—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 dip members, e.g. dip-sticks
    • 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
    • G01F23/80—Arrangements for signal processing
    • G01F23/802—Particular electronic circuits for digital processing equipment
    • G01F23/804—Particular electronic circuits for digital processing equipment containing circuits handling parameters other than liquid level
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/02—Devices or arrangements for monitoring coolant or moderator
    • G21C17/035—Moderator- or coolant-level detecting devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3172—Reflectometers detecting the back-scattered light in the frequency-domain, e.g. OFDR, FMCW, heterodyne detection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

Le dispositif de mesure comprend : - au moins une fibre optique (15) prévue pour être plongée dans le liquide à travers la surface libre (13) du liquide ; - une source de lumière (17) envoyant un rayonnement lumineux dans la fibre optique (15) ; - un analyseur (19), prévu pour analyser un rayonnement lumineux rétrodiffusé par la fibre optique (15) et pour en déduire le niveau de liquide par rapport au fond (9). Le dispositif de mesure (1) comprend une gaine (29) dans laquelle est disposée la ou chaque fibre optique (15), la gaine (29) étant perméable au liquide.The measuring device comprises: - at least one optical fiber (15) intended to be immersed in the liquid through the free surface (13) of the liquid; a light source (17) sending light radiation into the optical fiber (15); - An analyzer (19), for analyzing a light radiation backscattered by the optical fiber (15) and to deduce the liquid level from the bottom (9). The measuring device (1) comprises a sheath (29) in which the or each optical fiber (15) is arranged, the sheath (29) being permeable to the liquid.

FR1557504A 2015-08-03 2015-08-03 DEVICE FOR MEASURING LIQUID LEVEL BY OPTICAL REFLECTROMETRY, STRUCTURE COMPRISING SUCH A DEVICE AND CORRESPONDING MEASUREMENT METHOD Expired - Fee Related FR3039893B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR1557504A FR3039893B1 (en) 2015-08-03 2015-08-03 DEVICE FOR MEASURING LIQUID LEVEL BY OPTICAL REFLECTROMETRY, STRUCTURE COMPRISING SUCH A DEVICE AND CORRESPONDING MEASUREMENT METHOD
CN201680055241.3A CN108369123A (en) 2015-08-03 2016-08-03 The device that liquid level is measured by optical reflectance measurements meter includes structure and the corresponding measurement method of the device
PCT/EP2016/068543 WO2017021447A1 (en) 2015-08-03 2016-08-03 Device for measuring liquid level by means of optical reflectometry, structure comprising such a device and corresponding measuring method
ZA2018/00925A ZA201800925B (en) 2015-08-03 2018-02-12 Device for measuring liquid level by means of optical reflectometry, structure comprising such a device and corresponding measuring method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1557504 2015-08-03
FR1557504A FR3039893B1 (en) 2015-08-03 2015-08-03 DEVICE FOR MEASURING LIQUID LEVEL BY OPTICAL REFLECTROMETRY, STRUCTURE COMPRISING SUCH A DEVICE AND CORRESPONDING MEASUREMENT METHOD

Publications (2)

Publication Number Publication Date
FR3039893A1 FR3039893A1 (en) 2017-02-10
FR3039893B1 true FR3039893B1 (en) 2019-05-24

Family

ID=54608728

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1557504A Expired - Fee Related FR3039893B1 (en) 2015-08-03 2015-08-03 DEVICE FOR MEASURING LIQUID LEVEL BY OPTICAL REFLECTROMETRY, STRUCTURE COMPRISING SUCH A DEVICE AND CORRESPONDING MEASUREMENT METHOD

Country Status (4)

Country Link
CN (1) CN108369123A (en)
FR (1) FR3039893B1 (en)
WO (1) WO2017021447A1 (en)
ZA (1) ZA201800925B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107389154B (en) * 2017-08-09 2023-04-25 武汉昊衡科技有限公司 Hollow fiber continuous liquid level sensing device and measuring method based on OFDR

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597971B1 (en) * 1986-04-24 1990-10-19 Photonetics FIBER OPTIC SENSOR
JPH10153475A (en) * 1996-11-20 1998-06-09 Sumitomo Electric Ind Ltd Water level sensor
CA2271918A1 (en) * 1999-05-11 2000-11-11 Lee A. Danisch Transversely coupled fiber optic sensor for measuring and classifying contact and shape
JP2002277304A (en) * 2001-03-15 2002-09-25 Ntt Advanced Technology Corp Level gage
BRPI0610178A2 (en) * 2005-05-26 2012-09-25 Mitsubishi Electric Corp fiber optic sensor
US8203707B2 (en) * 2007-11-13 2012-06-19 Wei Xu Method and apparatus for distributed sensing utilizing optical scattering in optical waveguides
DE102010032716A1 (en) * 2010-07-29 2012-02-02 Lios Technology Gmbh Fiber optic cable for transmitting optical radiation, comprises shell, which surrounds optical fiber, and is partially or in sections hermetically sealed, where intermediate space is formed between optical fiber and shell
US9645002B2 (en) * 2013-03-28 2017-05-09 Exxonmobil Research And Engineering Company System and method for identifying levels or interfaces of media in a vessel

Also Published As

Publication number Publication date
WO2017021447A1 (en) 2017-02-09
ZA201800925B (en) 2018-11-28
CN108369123A (en) 2018-08-03
FR3039893A1 (en) 2017-02-10

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