DE69124600D1 - Geteilter fluss für gleichmässigen multidetektornachweis - Google Patents

Geteilter fluss für gleichmässigen multidetektornachweis

Info

Publication number
DE69124600D1
DE69124600D1 DE69124600T DE69124600T DE69124600D1 DE 69124600 D1 DE69124600 D1 DE 69124600D1 DE 69124600 T DE69124600 T DE 69124600T DE 69124600 T DE69124600 T DE 69124600T DE 69124600 D1 DE69124600 D1 DE 69124600D1
Authority
DE
Germany
Prior art keywords
multidetector
detection
divided flow
divided
flow
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
Application number
DE69124600T
Other languages
English (en)
Other versions
DE69124600T2 (de
Inventor
Louis Petralli
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.)
Met One Inc
Original Assignee
Met One Inc
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 Met One Inc filed Critical Met One Inc
Application granted granted Critical
Publication of DE69124600D1 publication Critical patent/DE69124600D1/de
Publication of DE69124600T2 publication Critical patent/DE69124600T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G01N2021/8557—Special shaping of flow, e.g. using a by-pass line, jet flow, curtain flow
    • 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
    • G01N2201/06—Illumination; Optics
    • G01N2201/061—Sources
    • G01N2201/06113—Coherent sources; lasers
    • G01N2201/0612—Laser diodes

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material 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)
  • Optical Measuring Cells (AREA)
DE69124600T 1990-05-07 1991-02-27 Geteilter fluss für gleichmässigen multidetektornachweis Expired - Fee Related DE69124600T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/520,110 US5084629A (en) 1990-05-07 1990-05-07 Split flow uniform multisensor detection
PCT/US1991/001275 WO1991017426A1 (en) 1990-05-07 1991-02-27 Split flow for uniform multisensor detection

Publications (2)

Publication Number Publication Date
DE69124600D1 true DE69124600D1 (de) 1997-03-20
DE69124600T2 DE69124600T2 (de) 1997-08-07

Family

ID=24071245

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69124600T Expired - Fee Related DE69124600T2 (de) 1990-05-07 1991-02-27 Geteilter fluss für gleichmässigen multidetektornachweis

Country Status (5)

Country Link
US (1) US5084629A (de)
EP (1) EP0528802B1 (de)
JP (1) JPH05506503A (de)
DE (1) DE69124600T2 (de)
WO (1) WO1991017426A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1259750B (it) * 1992-04-16 1996-03-26 Procedimento ed apparecchiatura per l'analisi microbiologica di campioni biologici in soluzione
US5467189A (en) * 1993-01-22 1995-11-14 Venturedyne, Ltd. Improved particle sensor and method for assaying a particle
EP0746752A4 (de) * 1993-08-19 2000-02-23 Venturedyne Ltd Teilchensensor mit luftzirkulationssystem geringen druckverluste
US6061132A (en) * 1998-07-20 2000-05-09 Pacific Scientific Instruments Company Dual detector array with noise cancellation for a particle size detection device
DE10118449C1 (de) * 2001-04-12 2002-10-17 Mwg Biotech Ag Vorrichtung zur Überwachung einer Chemikalienströmung und Verwendung dieser Vorrichtung
US6639671B1 (en) 2002-03-01 2003-10-28 Msp Corporation Wide-range particle counter
US20060192940A1 (en) * 2005-01-20 2006-08-31 Phi-Wilson Janette T Modular flow cytometry system
US20070092976A1 (en) * 2005-10-06 2007-04-26 Board Of Regents Of The University And College Systems Of Nevada Continuous emissions monitoring
EP1862793A1 (de) * 2006-05-29 2007-12-05 Biotest AG Teilchenzähler mit hoher Durchlaufleistung
US20080306582A1 (en) * 2007-06-05 2008-12-11 Yunbing Wang Implantable medical devices with elastomeric copolymer coatings
DE102011002421A1 (de) * 2011-01-04 2012-07-05 Robert Bosch Gmbh Messgerät zur Messung von Partikelkonzentrationen mittels Streulicht und Verfahren zur Überwachung des Messgerätes
CN102221520A (zh) * 2011-04-13 2011-10-19 苏州苏净仪器自控设备有限公司 一种激光尘埃粒子计数器
US8614793B2 (en) * 2012-04-02 2013-12-24 Ecolab Usa Inc. Flow chamber for online fluorometer
CN103954540B (zh) * 2014-04-29 2016-01-06 江苏朗信电气有限公司 一种车载颗粒物浓度检测仪
CN103953754B (zh) * 2014-04-29 2015-12-16 江苏朗信电气有限公司 车载颗粒物浓度检测仪用采样分配阀
US10094755B1 (en) 2017-10-25 2018-10-09 Venturedyne, Ltd Environmental sensor and method of operating the same
US10807440B2 (en) * 2018-01-15 2020-10-20 Maxmac Shanghai Automotive Electronic Co., Ltd. Dual-passage air quality detection device
KR20240019843A (ko) 2021-06-15 2024-02-14 파티클 머슈어링 시스템즈, 인크. 응축 입자 계수 및 사용 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675697A (en) * 1954-04-20 Multiple continuous air sampler
GB1235854A (en) * 1967-08-18 1971-06-16 Associated British Comb Ltd A method and device for combustion control
US3915570A (en) * 1970-08-20 1975-10-28 Environment One Corp Optical fluid contamination and change monitor method and apparatus
FR2558610B1 (fr) * 1984-01-23 1986-05-09 Labo Electronique Physique Procede et appareillage pour determiner l'instant d'arret d'un processus de renouvellement de liquide
US4907884A (en) * 1984-11-15 1990-03-13 Wyatt Technology Corporation Sample cell monitoring system
US4798465B2 (en) * 1986-04-14 1994-08-30 Particle Measuring Syst Particle size detection device having high sensitivity in high molecular scattering environment
US4816695A (en) * 1987-08-31 1989-03-28 Lavin Thomas N Optical fluid detector
EP0326511B1 (de) * 1988-01-14 1992-02-26 Ciba-Geigy Ag Mikrodurchflusszelle
US4920275A (en) * 1988-12-30 1990-04-24 Canon Kabushiki Kaisha Particle measuring device with elliptically-shaped scanning beam
US5011286A (en) * 1989-08-03 1991-04-30 Met One, Inc. Multisensor particle counter utilizing a single energy source

Also Published As

Publication number Publication date
EP0528802A1 (de) 1993-03-03
WO1991017426A1 (en) 1991-11-14
US5084629A (en) 1992-01-28
DE69124600T2 (de) 1997-08-07
EP0528802A4 (en) 1993-07-28
JPH05506503A (ja) 1993-09-22
EP0528802B1 (de) 1997-02-05

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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