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1. (WO2019028354) AQUEOUS SOLUTION CONSTITUENT ANALYZER
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Pub. No.: WO/2019/028354 International Application No.: PCT/US2018/045172
Publication Date: 07.02.2019 International Filing Date: 03.08.2018
IPC:
G01N 21/33 (2006.01) ,G01N 21/25 (2006.01) ,G01N 21/3577 (2014.01)
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
33
using ultra-violet light
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
[IPC code unknown for G01N 21/3577]
Applicants:
SEA-BIRD ELECTRONICS, INC. [US/US]; 13431 NE 20th Street Bellevue, WA 98005, US
Inventors:
VAN DOMMELEN, Ronnie; CA
PLACHE, Burkhard; CA
BROWN, Keith; CA
STRUBHAR, Wesley, D.; US
BARNARD, Andrew, H.; US
FEENER, Scott; CA
Agent:
YOSICK, Joseph, A.; US
Priority Data:
15/667,85103.08.2017US
Title (EN) AQUEOUS SOLUTION CONSTITUENT ANALYZER
(FR) ANALYSEUR DE CONSTITUANT DE SOLUTION AQUEUSE
Abstract:
(EN) Technology is provided for an aqueous solution constituent analyzer (100). The analyzer (100) includes an ultraviolet light emitting diode LED (130) with a current source (146) providing variable current thereto. A spectrometer (132) is positioned for receiving light from the LED (130) transmitted through an aqueous solution. A controller (140) receives radiant flux data for a plurality of wavelengths and determines, based on the radiant flux data, a usable number of the plurality of wavelengths that satisfies a relative uncertainty threshold. The controller (140) can increase the current to the LED (130) if the usable number of wavelengths is less than a minimum threshold and calculate a concentration of a constituent of interest in the solution. The controller (140) can also determine a peak wavelength of the plurality of wavelengths having the greatest intensity value, and decrease the current level to the LED (130) if the peak wavelength has an intensity value greater than a saturation value for the spectrometer (132).
(FR) La présente invention concerne une technologie pour un analyseur de constituant de solution aqueuse (100). L’analyseur (100) comprend une LED à diode électroluminescente ultraviolette (130) avec une source de courant (146) fournissant un courant variable à celle-ci. Un spectromètre (132) est positionné pour recevoir la lumière provenant de la LED (130) transmise à travers une solution aqueuse. Un dispositif de commande (140) reçoit des données de flux énergétique pour une pluralité de longueurs d’onde et détermine, sur la base des données de flux énergétique, un nombre utilisable de la pluralité de longueurs d’onde qui satisfait à un seuil d’incertitude relative. Le dispositif de commande (140) peut augmenter le courant vers la LED (130) si le nombre utilisable de longueurs d’onde est inférieur à un seuil minimal et calculer une concentration d’un constituant d’intérêt dans la solution. Le dispositif de commande (140) peut également déterminer une longueur d’onde de crête de la pluralité de longueurs d’onde ayant la plus grande valeur d’intensité, et diminuer l’intensité de courant vers la LED (130) si la longueur d’onde de crête a une valeur d’intensité supérieure à une valeur de saturation pour le spectromètre (132).
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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: English (EN)
Filing Language: English (EN)