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1. (WO2018138649) DEVICE AND METHOD FOR MEASURING THE SPATIAL DISTRIBUTION OF THE CONCENTRATION OF COMPOUNDS AND THEIR MIXTURES IN A FLUID AND/OR FOR DETERMINING THE FLUID LEVEL
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Pub. No.: WO/2018/138649 International Application No.: PCT/IB2018/050428
Publication Date: 02.08.2018 International Filing Date: 24.01.2018
IPC:
G01N 21/64 (2006.01) ,G01F 23/292 (2006.01) ,G01N 33/22 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
62
Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63
optically excited
64
Fluorescence; Phosphorescence
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23
Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22
by measurement of 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
28
by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
284
Electromagnetic waves
292
Light
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
22
Fuels; explosives
Applicants:
INSTITUTO SUPERIOR TÉCNICO [PT/PT]; Área De Transferência De Tecnologia, Avenida Rovisco Pais, 1 1049-001 Lisboa, PT
Inventors:
DE MATOS SEQUEIRA BERBERAN E SANTOS, Mário Nuno; PT
MARQUES MARTELO, Liliana; PT
Agent:
PEREIRA DA CRUZ, João; PT
Priority Data:
10987726.01.2017PT
Title (EN) DEVICE AND METHOD FOR MEASURING THE SPATIAL DISTRIBUTION OF THE CONCENTRATION OF COMPOUNDS AND THEIR MIXTURES IN A FLUID AND/OR FOR DETERMINING THE FLUID LEVEL
(FR) DISPOSITIF ET PROCÉDÉ DE MESURE DE LA DISTRIBUTION SPATIALE DE LA CONCENTRATION DE COMPOSÉS ET DE LEURS MÉLANGES DANS UN FLUIDE ET/OU DU NIVEAU DANS UN FLUIDE
(PT) DISPOSITIVO E MÉTODO PARA MEDIÇÃO DA DISTRIBUIÇÃO ESPACIAL DA CONCENTRAÇÃO DE COMPOSTOS E DAS SUAS MISTURAS NUM FUIDO E/OU DO NÍVEL NUM FLUIDO
Abstract:
(EN) The invention relates to a method for measuring the concentration of a substance or mixture of substances, and/or for determining the level of a fluid with intrinsic fluorescence, preferably fuel systems. The invention further relates to an optical device suitable for implementing the method and comprising a unit in which sample excitation light is generated, a unit for detecting a signal from the sample and a signal processing unit. The device and the method implemented thereby make it possible to determine the spatial distribution of the substance or mixture of liquid substances, and/or to determine the level of fluid in a reservoir. One of the main applications of the invention is the measurement of oxygen concentration in aircraft fuel tanks on the basis of the measurement of the intrinsic fluorescence of the fuel.
(FR) L'invention concerne un procédé pour la mesure de la concentration d'une substance ou d'un mélange de substances et/ou la détermination du niveau d'un fluide à fluorescence intrinsèque, de préférence des systèmes de carburant. L'invention concerne également le dispositif optique approprié pour mettre en oeuvre ce procédé, comprenant une unité dans laquelle une lumière d'excitation de l'échantillon est produite, une unité de détection du signal émis par l'échantillon et une unité de traitement de signal. Le dispositif et le procédé mis en oeuvre au moyen de ce dernier permettant en outre de déterminer la distribution spatiale de la substance ou du mélange de substances liquides et/ou du niveau du fluide dans un réservoir. L'une des principales applications est la mesure de la concentration en oxygène dans des réservoirs à carburant d'aéronefs, basée sur la mesure de la fluorescence intrinsèque du carburant.
(PT) A invenção refere-se a um método para medição da concentração de uma substância ou mistura de substâncias e/ou determinação do nível num fluido com fluorescência intrínseca, preferencialmente sistemas de combustível. A invenção refere-se ainda ao dispositivo ótico adequado para implementar o método, que compreende uma unidade onde se gera luz de excitação da amostra; uma unidade de deteção do sinal emitido pela amostra e uma unidade de processamento de sinal. O dispositivo e método por ele implementado permitem ainda determinar a distribuição espacial da substância ou mistura de substâncias líquidas e/ou o nível do fluido num reservatório. Uma das principais aplicações é a medição da concentração de oxigénio em tanques de combustível de aeronaves, baseada na medição da fluorescência intrínseca do combustível.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Portuguese (PT)
Filing Language: Portuguese (PT)