WO1998041840A3 - Verfahren zur partikelgrössenmessung - Google Patents

Verfahren zur partikelgrössenmessung Download PDF

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Publication number
WO1998041840A3
WO1998041840A3 PCT/EP1998/001490 EP9801490W WO9841840A3 WO 1998041840 A3 WO1998041840 A3 WO 1998041840A3 EP 9801490 W EP9801490 W EP 9801490W WO 9841840 A3 WO9841840 A3 WO 9841840A3
Authority
WO
WIPO (PCT)
Prior art keywords
particle sizes
measuring
measuring particle
picked
linear operation
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP1998/001490
Other languages
English (en)
French (fr)
Other versions
WO1998041840A2 (de
Inventor
Ulrich Riebel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US09/381,367 priority Critical patent/US6587200B1/en
Priority to AU70355/98A priority patent/AU7035598A/en
Priority to EP98916951A priority patent/EP0968408A2/de
Priority to JP54013098A priority patent/JP2001516451A/ja
Publication of WO1998041840A2 publication Critical patent/WO1998041840A2/de
Publication of WO1998041840A3 publication Critical patent/WO1998041840A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • G01N15/0211—Investigating a scatter or diffraction pattern
    • G01N2015/0222—Investigating a scatter or diffraction pattern from dynamic light scattering, e.g. photon correlation spectroscopy

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)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Partikelgrößenmessung durch Messung der Abschwächung von Strahlung nach Durchlaufen einer definierten Meßstrecke, in der sich ein disperses System befindet. Erfindungsgemäß wird das zeitlich schwankende Transmissionssignal mit variabler zeitlicher oder räumlicher Auflösung aufgenommen. Diese aufgenommenen Transmissionssignale werden anschließend einer nicht-linearen Operation unterworfen. Das Ergebnis der nicht-linearen Operation wird als spektraler Verlauf, d.h. als Funktion der räumlichen oder zeitlichen Auflösung dargestellt und ausgewertet.
PCT/EP1998/001490 1997-03-19 1998-03-12 Verfahren zur partikelgrössenmessung Ceased WO1998041840A2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US09/381,367 US6587200B1 (en) 1997-03-19 1998-03-12 Method of measuring particle sizes
AU70355/98A AU7035598A (en) 1997-03-19 1998-03-12 Method of measuring particle sizes
EP98916951A EP0968408A2 (de) 1997-03-19 1998-03-12 Verfahren zur partikelgrössenmessung
JP54013098A JP2001516451A (ja) 1997-03-19 1998-03-12 粒子サイズ測定方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19711494.6 1997-03-19
DE19711494A DE19711494C1 (de) 1997-03-19 1997-03-19 Verfahren zur Partikelgrößenmessung

Publications (2)

Publication Number Publication Date
WO1998041840A2 WO1998041840A2 (de) 1998-09-24
WO1998041840A3 true WO1998041840A3 (de) 1998-12-03

Family

ID=7823926

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/001490 Ceased WO1998041840A2 (de) 1997-03-19 1998-03-12 Verfahren zur partikelgrössenmessung

Country Status (6)

Country Link
US (1) US6587200B1 (de)
EP (1) EP0968408A2 (de)
JP (1) JP2001516451A (de)
AU (1) AU7035598A (de)
DE (1) DE19711494C1 (de)
WO (1) WO1998041840A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10001701B4 (de) * 2000-01-18 2006-03-30 Topas Gmbh Fotometer
US7181095B1 (en) 2003-07-29 2007-02-20 Cisco Technology, Inc. Low loss, noise filtering multiplexer/demultiplexer for reconfigurable OADMs
JP2008527359A (ja) * 2005-01-17 2008-07-24 バイオフォス・アーゲー 粒子の動的パラメータを測定するための方法およびデバイス
US7440102B1 (en) 2005-08-26 2008-10-21 The United States Of America As Represented By The Secretary Of The Army Systems and methods for analyzing polarized light scattered from a sample
WO2008009403A1 (en) * 2006-07-17 2008-01-24 Biophos Ag Mobile device for particle analysis by image correlation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975084A (en) * 1973-09-27 1976-08-17 Block Engineering, Inc. Particle detecting system
US4110044A (en) * 1975-12-01 1978-08-29 Svenska Traforskningsinstitutet Method for determination of concentration
US4318180A (en) * 1978-06-15 1982-03-02 Svenska Traforskningsinstitutet Method and apparatus for indicating the size distribution of particles in a flowing medium
US4752131A (en) * 1984-04-04 1988-06-21 Basf Aktiengesellschaft Laser-optical arrangement for measuring the degree of dispersion in flowing systems
US5015094A (en) * 1988-10-03 1991-05-14 Otsuka Electronics Co., Ltd. Particle size measuring system
EP0427093A2 (de) * 1989-11-07 1991-05-15 Honeywell Inc. Verfahren und Vorrichtung zur Messung der Teilchengrössenverteilung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733548A (en) * 1971-04-28 1973-05-15 Coulter Electronics Apparatus and method for measuring particle concentration of a suspension passing through a sensing zone
US3779070A (en) * 1971-11-23 1973-12-18 Autometrics Co Particle size and percent solids monitor
DE3138159A1 (de) * 1981-09-25 1983-04-14 Gkss - Forschungszentrum Geesthacht Gmbh, 2054 Geesthacht Verfahren und vorrichtung zur (gamma)-transmissionsanalyse von mehrkomponenten-gemischen in gegenwart grobkoerniger komponenten
SE453128B (sv) * 1981-10-01 1988-01-11 Svenska Traeforskningsinst Forfarande for att bestemma medelpartikelradie och/eller medelpartikellengd
DE3344122A1 (de) * 1983-12-07 1985-06-20 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Verfahren und einrichtung zur bestimmung der mittleren partikelgroesse von aerosolen
US5095451A (en) * 1989-07-13 1992-03-10 E. I. Du Pont De Nemours And Company Centrifuge particle size analyzer
US5121629A (en) * 1989-11-13 1992-06-16 E. I. Du Pont De Nemours And Company Method and apparatus for determining particle size distribution and concentration in a suspension using ultrasonics
US4988190A (en) * 1990-01-05 1991-01-29 Trustees Of Princeton University Absorption line filter window and method for velocity measurements by light scattering

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975084A (en) * 1973-09-27 1976-08-17 Block Engineering, Inc. Particle detecting system
US4110044A (en) * 1975-12-01 1978-08-29 Svenska Traforskningsinstitutet Method for determination of concentration
US4318180A (en) * 1978-06-15 1982-03-02 Svenska Traforskningsinstitutet Method and apparatus for indicating the size distribution of particles in a flowing medium
US4752131A (en) * 1984-04-04 1988-06-21 Basf Aktiengesellschaft Laser-optical arrangement for measuring the degree of dispersion in flowing systems
US5015094A (en) * 1988-10-03 1991-05-14 Otsuka Electronics Co., Ltd. Particle size measuring system
EP0427093A2 (de) * 1989-11-07 1991-05-15 Honeywell Inc. Verfahren und Vorrichtung zur Messung der Teilchengrössenverteilung

Also Published As

Publication number Publication date
AU7035598A (en) 1998-10-12
WO1998041840A2 (de) 1998-09-24
JP2001516451A (ja) 2001-09-25
EP0968408A2 (de) 2000-01-05
DE19711494C1 (de) 1998-10-15
US6587200B1 (en) 2003-07-01

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