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1. WO2017021458 - DEVICE FOR MEASURING LIQUID LEVEL BY MEANS OF OPTICAL REFLECTOMETRY, STRUCTURE COMPRISING SUCH A DEVICE AND CORRESPONDING MEASURING METHOD

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Publication Number WO/2017/021458
Publication Date 09.02.2017
International Application No. PCT/EP2016/068562
International Filing Date 03.08.2016
IPC
G01F 23/44 2006.01
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
30by floats
40using bands or wires as transmission elements
44using electrically actuated indicating means
G01F 23/68 2006.01
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
30by floats
64of the free float type
68using electrically actuated indicating means
G01M 11/00 2006.01
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
11Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
CPC
G01F 23/446
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
30by floats
40using bands or wires as transmission elements
44using electrically actuated indicating means
446using opto-electrically actuated indicating means
G01F 23/686
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
30by floats
64of the free float type ; without mechanical transmission elements
68using electrically actuated indicating means
686using opto-electrically actuated indicating means
G01M 11/3109
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
11Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
30Testing of optical devices, constituted by fibre optics or optical waveguides
31with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
3109Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
G01M 11/3172
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
11Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
30Testing of optical devices, constituted by fibre optics or optical waveguides
31with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
3172Reflectometers detecting the back-scattered light in the frequency-domain, e.g. OFDR, FMCW, heterodyne detection
Applicants
  • FRAMATOME [FR]/[FR]
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
  • UNIVERSITE JEAN MONNET SAINT-ETIENNE
Inventors
  • PERISSE, Jocelyn
  • MACE, Jean-Reynald
  • GIRARD, Sylvain
  • MARIN, Emmanuel
  • RIZZOLO, Serena
  • BOUKENTER, Aziz
  • OUERDANE, Youcef
Agents
  • COLOMBIE, Damien
  • BLOT, Philippe
  • DOMENEGO, Bertrand
  • HABASQUE, Etienne
  • NEYRET, Daniel
  • HOLTZ, Béatrice
Priority Data
15 5750303.08.2015FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) DEVICE FOR MEASURING LIQUID LEVEL BY MEANS OF OPTICAL REFLECTOMETRY, STRUCTURE COMPRISING SUCH A DEVICE AND CORRESPONDING MEASURING METHOD
(FR) DISPOSITIF DE MESURE DE NIVEAU DE LIQUIDE PAR RÉFLECTROMÉTRIE OPTIQUE, STRUCTURE COMPRENANT UN TEL DISPOSITIF ET PROCÉDÉ DE MESURE CORRESPONDANT
front page image
Abstract
(EN)
The invention relates to a measuring device comprising: at least one optical fibre (15); a light source (17); and an analyser (19) for analysing light radiation back-scattered by the optical fibre (15) and deducing therefrom the liquid level in relation to the bottom (9). The measuring device (1) comprises a floater (21) floating at the free surface (13) of the liquid, the floater (21) comprising a passage (23) in which the or each optical fibre (15) is received in a sliding manner, a section (25) of the optical fibre (15) engaged in the passage being crimped or diverted.
(FR)
Le dispositif de mesure comprend : - au moins une fibre optique (15); - une source de lumière (17); - 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 un flotteur (21) flottant à la surface libre (13) du liquide, le flotteur (21) comportant un passage (23) dans lequel la ou chaque fibre optique (15) est reçue de manière coulissante, un tronçon (25) de la fibre optique (15) engagé dans le passage étant pincé ou dévié.
Also published as
FR3039891
CN108431558
IN201817005290
SA518390865
Latest bibliographic data on file with the International Bureau
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