WO2011020983A3 - Measurement of fluid concentration - Google Patents

Measurement of fluid concentration Download PDF

Info

Publication number
WO2011020983A3
WO2011020983A3 PCT/GB2010/001265 GB2010001265W WO2011020983A3 WO 2011020983 A3 WO2011020983 A3 WO 2011020983A3 GB 2010001265 W GB2010001265 W GB 2010001265W WO 2011020983 A3 WO2011020983 A3 WO 2011020983A3
Authority
WO
WIPO (PCT)
Prior art keywords
excitation light
transducer
opto
analyte
generate
Prior art date
Application number
PCT/GB2010/001265
Other languages
French (fr)
Other versions
WO2011020983A2 (en
Inventor
Karl Howlett
Stathis Louridas
Leigh Henebury
Stuart Murray
Original Assignee
Marshalls Of Cambridge Aerospace Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0911321A external-priority patent/GB0911321D0/en
Priority claimed from GB0911320A external-priority patent/GB0911320D0/en
Application filed by Marshalls Of Cambridge Aerospace Limited filed Critical Marshalls Of Cambridge Aerospace Limited
Publication of WO2011020983A2 publication Critical patent/WO2011020983A2/en
Publication of WO2011020983A3 publication Critical patent/WO2011020983A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6408—Fluorescence; Phosphorescence with measurement of decay time, time resolved fluorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G01N2021/6432—Quenching
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
    • G01N2021/7706—Reagent provision
    • G01N2021/772—Tip coated light guide
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N2021/7793—Sensor comprising plural indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/121—Correction signals
    • G01N2201/1211—Correction signals for temperature

Abstract

A system for operating an opto-luminescent chemical transducer which is adapted to generate, in response to an input of excitation light, an output radiation capable of absorption by an analyte, thereby to enable a concentration level of the analyte to be established, comprises: a source of cyclically-varying incident excitation light directed upon the transducer; a detector adapted to generate an output signal whose amplitude varies with time in accordance with intensity of output radiation generated by the transducer as a result of its opto-luminescence; and a phase detection module for determining phase of the output signal within a cycle of variation of the excitation light.
PCT/GB2010/001265 2009-06-30 2010-06-30 Measurement of fluid concentration WO2011020983A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0911321A GB0911321D0 (en) 2009-06-30 2009-06-30 Measurement of fluid concentration
GB0911320A GB0911320D0 (en) 2009-06-30 2009-06-30 Optical fibre coupling
GB0911320.0 2009-06-30
GB0911321.8 2009-06-30

Publications (2)

Publication Number Publication Date
WO2011020983A2 WO2011020983A2 (en) 2011-02-24
WO2011020983A3 true WO2011020983A3 (en) 2011-09-15

Family

ID=43607382

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2010/001265 WO2011020983A2 (en) 2009-06-30 2010-06-30 Measurement of fluid concentration

Country Status (1)

Country Link
WO (1) WO2011020983A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9709499B1 (en) 2013-09-12 2017-07-18 Innovative Scientific Solutions, Inc. Measurement of oxygen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453599A1 (en) * 1990-04-25 1991-10-30 Hewlett-Packard GmbH A blood gas parameter measuring system
US20030062485A1 (en) * 2001-09-28 2003-04-03 Fernandez Salvador M. Compact multiwavelength phase fluorometer
US6815211B1 (en) * 1998-08-04 2004-11-09 Ntc Technology Oxygen monitoring methods and apparatus (I)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6634598B2 (en) 2001-11-28 2003-10-21 Kenneth Susko On-board fuel inerting system
US6925852B2 (en) 2002-11-05 2005-08-09 Kenneth Susko Oxygen monitoring device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453599A1 (en) * 1990-04-25 1991-10-30 Hewlett-Packard GmbH A blood gas parameter measuring system
US6815211B1 (en) * 1998-08-04 2004-11-09 Ntc Technology Oxygen monitoring methods and apparatus (I)
US20030062485A1 (en) * 2001-09-28 2003-04-03 Fernandez Salvador M. Compact multiwavelength phase fluorometer

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Photonics in the Transportation Industry: Auto to Aerospace II - Section listing", vol. 7314, XP002634358, Retrieved from the Internet <URL:http://spiedigitallibrary.org/proceedings/resource/2/psisdg/7314/1?isAuthorized=no> [retrieved on 20110420] *
MCDONAGH C ET AL: "Phase fluorometric dissolved oxygen sensor", SENSORS AND ACTUATORS B, ELSEVIER SEQUOIA S.A., LAUSANNE, CH, vol. 74, no. 1-3, 15 April 2001 (2001-04-15), pages 124 - 130, XP004233666, ISSN: 0925-4005, DOI: DOI:10.1016/S0925-4005(00)00721-8 *
PANAHI A: "Fiber optic oxygen sensor using fluorescence quenching for aircraft inerting fuel tank applications", PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING USA, vol. 7314, 5 May 2009 (2009-05-05), XP002633834, ISSN: 0277-786X *

Also Published As

Publication number Publication date
WO2011020983A2 (en) 2011-02-24

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