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1. (WO2010111780) SPECTROSCOPY HAVING CORRECTION FOR BROADBAND DISTORTION FOR ANALYZING MULTI-COMPONENT SAMPLES
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2010/111780 International Application No.: PCT/CA2010/000477
Publication Date: 07.10.2010 International Filing Date: 29.03.2010
IPC:
G01N 21/31 (2006.01) ,G01J 3/42 (2006.01) ,G01N 21/35 (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
17
Systems in which incident light is modified in accordance with the properties of the material investigated
25
Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31
Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
28
Investigating the spectrum
42
Absorption spectrometry; Double-beam spectrometry; Flicker spectrometry; Reflection spectrometry
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
17
Systems in which incident light is modified in accordance with the properties of the material investigated
25
Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31
Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35
using infra-red light
Applicants: HARAN, Frank M.[CA/CA]; CA (UsOnly)
DREES, Reena Meijer[CA/CA]; CA (UsOnly)
TIXIER, Sebastien[CA/CA]; CA (UsOnly)
HONEYWELL ASCA, INC.[CA/CA]; 3333 Unity Drive Mississauga, Ontario L5L 3S6, CA (AllExceptUS)
Inventors: HARAN, Frank M.; CA
DREES, Reena Meijer; CA
TIXIER, Sebastien; CA
Agent: MANOLAKIS, Emmanuel; Gowling Lafleur Henderson LLP 1 Place Ville Marie, 37th Floor Montreal, Québec H3B 3P4, CA
Priority Data:
12/413,66630.03.2009US
Title (EN) SPECTROSCOPY HAVING CORRECTION FOR BROADBAND DISTORTION FOR ANALYZING MULTI-COMPONENT SAMPLES
(FR) SPECTROSCOPIE AYANT UNE CORRECTION DE LA DISTORSION À LARGE BANDE POUR ANALYSER DES ÉCHANTILLONS MULTICOMPOSANTS
Abstract:
(EN) A spectroscopic method (100) and spectroscopy system (200) therefrom for analyzing samples (298). A sample includes a first chemical component that has a characteristic first absorption peak is provided (101). The sample is irradiated (102) in a measurement waveband proximate to the first absorption peak, and at a first and a second reference waveband where the first chemical component lacks characteristic absorption features. Reflected or transmitted detection data is obtained (103) including a measured power proximate to the first absorption peak and first and second reference powers at the reference wavebands. A plurality of different waveband ratios are evaluated (104) using pairs of detection data to generate a plurality of measured waveband ratio values. A parameter of the first chemical component is then determined (105) by evaluating a multidimensional polynomial calibration equation that relates the parameter of the first chemical component to the plurality of different waveband ratios by substituting the measured waveband ratio values into the calibration relation.
(FR) L'invention porte sur un procédé spectroscopique (100) et sur un système de spectroscopie (200) utilisant ce procédé, pour analyser des échantillons (298). Un échantillon comprend un premier composant chimique qui a un premier pic d'absorption caractéristique (101). L'échantillon est irradié (102) dans une gamme d'ondes de mesure proche du premier pic d'absorption, et au niveau d'une première et d'une seconde gamme d'ondes de référence, où le premier composant chimique ne présente pas de propriétés d'absorption caractéristiques. Des données de détection réfléchies ou transmises (103) sont obtenues, comprenant une puissance mesurée au voisinage du premier pic d'absorption, et des première et seconde puissances de référence au niveau des gammes d'ondes de référence. Une pluralité de rapports différents entre gammes d'ondes font l'objet d'une évaluation (104) par utilisation de paires de données de détection, pour produire une pluralité de valeurs des rapports mesurés de gammes d'ondes. Un paramètre du premier composant chimique est ensuite déterminé (105) par évaluation d'une équation d'étalonnage polynomiale multidimensionnelle, qui rapporte le paramètre du premier composant chimique à la pluralité de rapports différents entre gammes d'ondes, par substitution des valeurs mesurées des rapports de gammes d'ondes dans la relation d'étalonnage.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, 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, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)