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1. (WO2019043408) CHLOROPHYLL ABSORPTION METER
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/043408 International Application No.: PCT/GB2018/052485
Publication Date: 07.03.2019 International Filing Date: 03.09.2018
IPC:
G01N 21/31 (2006.01) ,G01N 21/84 (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
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
84
Systems specially adapted for particular applications
Applicants:
UNIVERSITY OF PLYMOUTH [GB/GB]; Drake Circus Plymouth Devon PL4 8AA, GB
PLYMOUTH MARINE LABORATORY [GB/GB]; Prospect Place West Hoe Plymouth Devon PL1 3DH, GB
Inventors:
NIMMO-SMITH, William; GB
DALL'OLMO, Giorgio; GB
Agent:
BRYERS LLP; 7 Gay Street Bath Bath and North East Somerset BA1 2PH, GB
GREENWOOD, Matthew; GB
Priority Data:
1714042.701.09.2017GB
Title (EN) CHLOROPHYLL ABSORPTION METER
(FR) DISPOSITIF DE MESURE D'ABSORPTION DE CHLOROPHYLLE
Abstract:
(EN) A chlorophyll absorption meter for measuring chlorophyll-a concentration in situ is provided.The meter comprises:an LED for generating a first wavelength in the range of about 670nm to 680nm; an LED for generating a second wavelength in the range of about 685nm to 695nm;a sample chamber for receiving a liquid sample;a sample detector for detecting light at the first and second wavelengths after it is transmitted through a sample; and means for determining light transmittance at the first and second wavelengths.
(FR) L'invention concerne un dispositif de mesure d'absorption de chlorophylle permettant de mesurer une concentration de chlorophylle-a in situ. Ledit dispositif de mesure comprend : une DEL permettant de générer une première longueur d'onde dans une plage environ de 670 nm à 680 nm ; une DEL permettant de générer une seconde longueur d'onde dans une plage environ de 685 nm à 695 nm ; une chambre d'échantillon permettant de recevoir un échantillon liquide ; un détecteur d'échantillon permettant de détecter la lumière à la première longueur d'onde et à la seconde longueur d'onde après son émission à travers un échantillon ; et un moyen de détermination de la transmittance de lumière à la première longueur d'onde et à la seconde longueur d'onde.
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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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)