WO2002066959A3 - Method for detection and characterisation of liquid-borne particles - Google Patents

Method for detection and characterisation of liquid-borne particles Download PDF

Info

Publication number
WO2002066959A3
WO2002066959A3 PCT/GB2002/000699 GB0200699W WO02066959A3 WO 2002066959 A3 WO2002066959 A3 WO 2002066959A3 GB 0200699 W GB0200699 W GB 0200699W WO 02066959 A3 WO02066959 A3 WO 02066959A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical detector
scattering
detector
particle
borne particles
Prior art date
Application number
PCT/GB2002/000699
Other languages
French (fr)
Other versions
WO2002066959A2 (en
Inventor
Paul Henry Kaye
Edwin Hirst
Original Assignee
Univ Hertfordshire
Paul Henry Kaye
Edwin Hirst
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
Application filed by Univ Hertfordshire, Paul Henry Kaye, Edwin Hirst filed Critical Univ Hertfordshire
Publication of WO2002066959A2 publication Critical patent/WO2002066959A2/en
Publication of WO2002066959A3 publication Critical patent/WO2002066959A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G01N15/0227—Investigating particle size or size distribution by optical means using imaging; using holography
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N2015/03—Electro-optical investigation of a plurality of particles, the analyser being characterised by the optical arrangement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

In one aspect the present invention provides a detector assembly for detecting liquid-borne particles which comprises: (i) a scattering zone; (ii) means for illuminating the particle stream within the scattering zone; (iii) an optical detector adapted to intercept and collect a portion of the light scattered by each particle passing through the illuminating beam; (iv) data processing means adapted to capture and process the signals from the optical detector for each particle traversing the illuminating beam, wherein the optical detector has a matrix of optical detector elements, the scattering zone defines a large scattering volume that is suitably a thin sheet or column and the detector/camera views the wide area scattering volume.
PCT/GB2002/000699 2001-02-16 2002-02-18 Method for detection and characterisation of liquid-borne particles WO2002066959A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0103757.1 2001-02-16
GB0103757A GB0103757D0 (en) 2001-02-16 2001-02-16 Methods and apparatus for the detection and characterisation of liquid-borne a rticles

Publications (2)

Publication Number Publication Date
WO2002066959A2 WO2002066959A2 (en) 2002-08-29
WO2002066959A3 true WO2002066959A3 (en) 2003-01-09

Family

ID=9908819

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/000699 WO2002066959A2 (en) 2001-02-16 2002-02-18 Method for detection and characterisation of liquid-borne particles

Country Status (2)

Country Link
GB (2) GB0103757D0 (en)
WO (1) WO2002066959A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107735667B (en) * 2015-06-12 2021-06-15 皇家飞利浦有限公司 Optical particle sensor and sensing method
DE102015217700B3 (en) 2015-09-16 2016-12-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for determining the mean radius of gyration of particles with a size of less than or equal to 200 nm in a suspension and apparatus for carrying out the method
US10049444B2 (en) * 2016-03-25 2018-08-14 Lockheed Martin Corporation Optical device for fuel filter debris

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173415A (en) * 1976-08-20 1979-11-06 Science Spectrum, Inc. Apparatus and process for rapidly characterizing and differentiating large organic cells
EP0121261A2 (en) * 1983-04-05 1984-10-10 Becton Dickinson and Company Method and apparatus for distinguishing subclasses of leukocytes in a sample
EP0317809A2 (en) * 1987-11-25 1989-05-31 Becton, Dickinson and Company Sheated particle flow controlled by differential pressure
EP0614077A2 (en) * 1993-01-26 1994-09-07 Hitachi, Ltd. Flow cell apparatus
WO1997015229A1 (en) * 1995-10-23 1997-05-01 Cytometrics, Inc. Method and apparatus for reflected imaging analysis
GB2311603A (en) * 1996-03-27 1997-10-01 Univ Hertfordshire Particle analyser

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548500A (en) * 1982-06-22 1985-10-22 Wyatt Philip J Process and apparatus for identifying or characterizing small particles
JPS6030295A (en) * 1983-07-29 1985-02-15 Victor Co Of Japan Ltd Recording and reproducing device for chrominance carrier signal
JP2642632B2 (en) * 1987-07-03 1997-08-20 株式会社日立製作所 Particle measuring device and particle measuring method
JPH01134245U (en) * 1988-03-09 1989-09-13
GB2264556A (en) * 1992-02-21 1993-09-01 Hatfield Polytechnic Higher Ed Diffraction analysis of particle size, shape and orientation
AU3508993A (en) * 1992-02-21 1993-09-13 Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Analysis of particle characteristics

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173415A (en) * 1976-08-20 1979-11-06 Science Spectrum, Inc. Apparatus and process for rapidly characterizing and differentiating large organic cells
EP0121261A2 (en) * 1983-04-05 1984-10-10 Becton Dickinson and Company Method and apparatus for distinguishing subclasses of leukocytes in a sample
EP0317809A2 (en) * 1987-11-25 1989-05-31 Becton, Dickinson and Company Sheated particle flow controlled by differential pressure
EP0614077A2 (en) * 1993-01-26 1994-09-07 Hitachi, Ltd. Flow cell apparatus
WO1997015229A1 (en) * 1995-10-23 1997-05-01 Cytometrics, Inc. Method and apparatus for reflected imaging analysis
GB2311603A (en) * 1996-03-27 1997-10-01 Univ Hertfordshire Particle analyser

Also Published As

Publication number Publication date
WO2002066959A2 (en) 2002-08-29
GB0103757D0 (en) 2001-04-04
GB2376070A (en) 2002-12-04
GB0203797D0 (en) 2002-04-03

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