DE68925983D1 - Optische Vorrichtung zur Messung von Teilchengrössen - Google Patents
Optische Vorrichtung zur Messung von TeilchengrössenInfo
- Publication number
- DE68925983D1 DE68925983D1 DE68925983T DE68925983T DE68925983D1 DE 68925983 D1 DE68925983 D1 DE 68925983D1 DE 68925983 T DE68925983 T DE 68925983T DE 68925983 T DE68925983 T DE 68925983T DE 68925983 D1 DE68925983 D1 DE 68925983D1
- Authority
- DE
- Germany
- Prior art keywords
- optical device
- particle sizes
- measuring particle
- measuring
- sizes
- 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.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title 1
- 239000002245 particle Substances 0.000 title 1
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
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
- G01N15/1434—Optical arrangements
-
- 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
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
- G01N15/1456—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals
-
- 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
- G01N2015/0238—Single particle scatter
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N2021/4704—Angular selective
- G01N2021/4707—Forward scatter; Low angle scatter
Landscapes
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/144,225 US4842406A (en) | 1988-01-15 | 1988-01-15 | Optical instruments for measuring particle sizes |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68925983D1 true DE68925983D1 (de) | 1996-04-25 |
DE68925983T2 DE68925983T2 (de) | 1996-10-31 |
Family
ID=22507628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68925983T Expired - Fee Related DE68925983T2 (de) | 1988-01-15 | 1989-01-10 | Optische Vorrichtung zur Messung von Teilchengrössen |
Country Status (4)
Country | Link |
---|---|
US (1) | US4842406A (de) |
EP (1) | EP0324413B1 (de) |
JP (1) | JP2761018B2 (de) |
DE (1) | DE68925983T2 (de) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8713649D0 (en) * | 1987-06-11 | 1987-07-15 | Pa Consulting Services | Biological assay |
US5007297A (en) * | 1988-12-06 | 1991-04-16 | Pacific Scientific Company | Particle size measuring system with automatic dilution of sample |
DE59004078D1 (de) * | 1989-04-07 | 1994-02-17 | Grimm Labortechnik | Vorrichtung und Verfahren zum Bestimmen der Korngrössenverteilung und der Gesamtkonzentration von Partikeln in einem Gas, insbesondere in Luft. |
US5033851A (en) * | 1989-05-30 | 1991-07-23 | Pacific Scientific Company | Light scattering method and apparatus for detecting particles in liquid sample |
US5061065A (en) * | 1989-10-20 | 1991-10-29 | Pacific Scientific Company | Particle contamination detection in fluids through the external section of a laser |
US5092675A (en) * | 1989-11-14 | 1992-03-03 | Pacific Scientific Company | Vacuum line particle detector with slab laser |
JP2715604B2 (ja) * | 1989-12-18 | 1998-02-18 | 株式会社島津製作所 | レーザ回折・散乱式粒度分布測定装置 |
JP3049254B2 (ja) * | 1990-02-08 | 2000-06-05 | シスメックス株式会社 | 2種類の光源を備えた光学式粒子分析装置 |
JP2899359B2 (ja) * | 1990-05-08 | 1999-06-02 | 興和株式会社 | 流体中の粒子計測方法及びその装置 |
US5084614A (en) * | 1990-09-21 | 1992-01-28 | Tsi Incorporated | Optical single particle detector with lenseless fiber optic probe |
DE69129260T2 (de) * | 1990-11-03 | 1998-11-19 | Horiba Ltd | Gerät zur Messung der Teilchengrössenverteilung |
JP2863874B2 (ja) * | 1990-12-30 | 1999-03-03 | 株式会社堀場製作所 | 粒度分布測定装置 |
FR2689247B1 (fr) * | 1992-03-24 | 1994-06-03 | Electricite De France | Procede et dispositif de mesure optique des dimensions d'un objet ou de la vitesse d'un objet ou d'un fluide en mouvement dans un champ. |
US5298967A (en) * | 1992-06-02 | 1994-03-29 | Pacific Scientific Company | Measurement of concentrations of dissolved solvent |
US5426501A (en) * | 1993-01-06 | 1995-06-20 | Laser Sensor Technology, Inc. | Apparatus and method for particle analysis |
US5467189A (en) * | 1993-01-22 | 1995-11-14 | Venturedyne, Ltd. | Improved particle sensor and method for assaying a particle |
US5534999A (en) * | 1993-03-05 | 1996-07-09 | Shinmikuni Kikai Ltd. | Monitoring sub-micron particles |
US5859705A (en) * | 1993-05-26 | 1999-01-12 | The Dow Chemical Company | Apparatus and method for using light scattering to determine the size of particles virtually independent of refractive index |
US6373868B1 (en) * | 1993-05-28 | 2002-04-16 | Tong Zhang | Single-mode operation and frequency conversions for diode-pumped solid-state lasers |
WO1995005594A1 (en) * | 1993-08-19 | 1995-02-23 | Venturedyne Limited | Particle sensor with low-pressure-drop air flow system |
US5835211A (en) * | 1996-03-28 | 1998-11-10 | Particle Sizing Systems, Inc. | Single-particle optical sensor with improved sensitivity and dynamic size range |
DE69819227T2 (de) | 1997-03-10 | 2004-04-22 | Fuji Electric Co., Ltd., Kawasaki | Vorrichtung und Verfahren zur Trübungsmessung |
US5849064B1 (en) * | 1997-04-14 | 2000-05-02 | Micromeritics Instr Corp | System and method for evenly suspending and circulating particles in a liquid |
US5870190A (en) * | 1997-11-25 | 1999-02-09 | Venturedyne, Ltd. | Particle sensor and related method offering improved particle discrimination |
US6305777B1 (en) * | 1998-08-04 | 2001-10-23 | Sarnoff Corporation | Apparatus and method for measurement of a liquid droplet |
DE19849597A1 (de) * | 1998-10-28 | 2000-05-04 | Dade Behring Marburg Gmbh | Nephelometrische Detektionseinheit mit optischer In-Prozeß-Kontrolle |
EP1008843A1 (de) * | 1998-12-07 | 2000-06-14 | Venturedyne Ltd. | Teilchensensor und verwandte verbesserte Teilchenunterscheidung bietende Verfahren |
US6600559B2 (en) * | 2001-03-22 | 2003-07-29 | Eastman Kodak Company | On-line method for detecting particle size during a milling process |
US7400400B2 (en) * | 2001-08-29 | 2008-07-15 | Merck & Co. Inc. | Method for monitoring particle size |
KR20030045729A (ko) * | 2003-05-07 | 2003-06-11 | 최희규 | 다성분 입자계 입도측정시 최적 굴절률 선정방법 |
JP2005121415A (ja) * | 2003-10-15 | 2005-05-12 | Shimadzu Corp | 粒度分布測定装置 |
DE10348950A1 (de) * | 2003-10-18 | 2005-05-19 | Minebea Co., Ltd. | Verfahren zur Volumenbestimmung von kleinen bewegten kugelförmigen Objekten |
US20050151968A1 (en) * | 2004-01-08 | 2005-07-14 | The Lxt Group | Systems and methods for continuous, on-line, real-time surveillance of particles in a fluid |
US7274447B2 (en) * | 2004-06-21 | 2007-09-25 | Swce | Material porosity pressure impulse testing system |
JP6100161B2 (ja) * | 2011-04-01 | 2017-03-22 | 関西ペイント株式会社 | 粒子径の評価方法および評価装置 |
CN102636420B (zh) * | 2012-04-27 | 2014-03-12 | 西安交通大学 | 一种大型喷雾场雾化液滴粒径测量装置 |
WO2014195917A2 (en) * | 2013-06-07 | 2014-12-11 | Malvern Instruments Limited | Array based sample characterization |
JP2016128795A (ja) * | 2015-01-09 | 2016-07-14 | パナソニックIpマネジメント株式会社 | 粒子測定装置、空気清浄機、及び、粒子測定方法 |
JP6515683B2 (ja) * | 2015-05-29 | 2019-05-22 | 富士通株式会社 | 測定装置および測定システム |
US10151682B2 (en) * | 2015-07-14 | 2018-12-11 | Teilch Llc | Airborne particle measuring device |
US10670523B2 (en) * | 2016-04-19 | 2020-06-02 | Intel Corporation | Particulate matter measurement using light sheet generation and scattering analysis |
CN107219195B (zh) * | 2017-05-23 | 2019-07-23 | 山东中医药大学附属医院 | 一种血液白细胞检测装置和方法 |
US11275014B1 (en) | 2021-05-03 | 2022-03-15 | Roy Olson | Particle characteristic measurement apparatus |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3873204A (en) * | 1970-01-14 | 1975-03-25 | Bio Physics Systems Inc | Optical extinction photoanalysis apparatus for small particles |
US3797937A (en) * | 1972-03-01 | 1974-03-19 | Environmental Systems Corp | System for making particle measurements |
US3830568A (en) * | 1973-05-25 | 1974-08-20 | Texas Instruments Inc | Multiple detection volume laser doppler velocimeter |
US4015135A (en) * | 1975-01-10 | 1977-03-29 | E. I. Dupont De Nemours And Company | Method and apparatus for particulate monitoring |
US4348111A (en) * | 1978-12-07 | 1982-09-07 | The English Electric Company Limited | Optical particle analyzers |
US4263508A (en) * | 1979-04-20 | 1981-04-21 | Research Corporation | Pulse edge measurement for determining particle dimensional characteristics |
US4265538A (en) * | 1979-10-18 | 1981-05-05 | Leeds & Northrup Company | Optical sample cell for analysis of particles in liquid suspension |
JPS58131541A (ja) * | 1982-01-30 | 1983-08-05 | Shimadzu Corp | 白血球・ヘモグロビン量同時測定装置 |
SU1173264A1 (ru) * | 1983-09-30 | 1985-08-15 | Университет дружбы народов им.Патриса Лумумбы | Способ измерени размеров частиц |
US4596464A (en) * | 1983-10-14 | 1986-06-24 | Ortho Diagnostic Systems, Inc. | Screening method for red cell abnormality |
JPS6089731A (ja) * | 1983-10-21 | 1985-05-20 | Toa Medical Electronics Co Ltd | 粒子計数装置 |
-
1988
- 1988-01-15 US US07/144,225 patent/US4842406A/en not_active Expired - Lifetime
-
1989
- 1989-01-10 DE DE68925983T patent/DE68925983T2/de not_active Expired - Fee Related
- 1989-01-10 EP EP89100297A patent/EP0324413B1/de not_active Expired - Lifetime
- 1989-01-11 JP JP1005862A patent/JP2761018B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0324413A3 (en) | 1990-09-12 |
EP0324413A2 (de) | 1989-07-19 |
JPH01216232A (ja) | 1989-08-30 |
EP0324413B1 (de) | 1996-03-20 |
DE68925983T2 (de) | 1996-10-31 |
JP2761018B2 (ja) | 1998-06-04 |
US4842406A (en) | 1989-06-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |