DE3712665C2 - Teilchengrößendetektor mit hoher Empfindlichkeit für Umgebungen mit starker Molekularstreuung - Google Patents

Teilchengrößendetektor mit hoher Empfindlichkeit für Umgebungen mit starker Molekularstreuung

Info

Publication number
DE3712665C2
DE3712665C2 DE3712665A DE3712665A DE3712665C2 DE 3712665 C2 DE3712665 C2 DE 3712665C2 DE 3712665 A DE3712665 A DE 3712665A DE 3712665 A DE3712665 A DE 3712665A DE 3712665 C2 DE3712665 C2 DE 3712665C2
Authority
DE
Germany
Prior art keywords
particle size
detector
particles
measuring field
processor
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 - Lifetime
Application number
DE3712665A
Other languages
German (de)
English (en)
Other versions
DE3712665A1 (de
Inventor
Robert G Knollenberg
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.)
Particle Measuring Systems Inc
Original Assignee
Particle Measuring Systems 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 Particle Measuring Systems Inc filed Critical Particle Measuring Systems Inc
Publication of DE3712665A1 publication Critical patent/DE3712665A1/de
Application granted granted Critical
Publication of DE3712665C2 publication Critical patent/DE3712665C2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02Investigating particle size or size distribution
    • G01N15/0205Investigating particle size or size distribution by optical means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/39Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
    • G01N2021/391Intracavity sample

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)
  • Length Measuring Devices By Optical Means (AREA)
DE3712665A 1986-04-14 1987-04-14 Teilchengrößendetektor mit hoher Empfindlichkeit für Umgebungen mit starker Molekularstreuung Expired - Lifetime DE3712665C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06851477 US4798465B2 (en) 1986-04-14 1986-04-14 Particle size detection device having high sensitivity in high molecular scattering environment

Publications (2)

Publication Number Publication Date
DE3712665A1 DE3712665A1 (de) 1987-10-15
DE3712665C2 true DE3712665C2 (de) 2000-02-17

Family

ID=25310865

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3712665A Expired - Lifetime DE3712665C2 (de) 1986-04-14 1987-04-14 Teilchengrößendetektor mit hoher Empfindlichkeit für Umgebungen mit starker Molekularstreuung

Country Status (3)

Country Link
US (2) US4798465B2 (enExample)
JP (1) JP2786187B2 (enExample)
DE (1) DE3712665C2 (enExample)

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US5642193A (en) * 1996-03-08 1997-06-24 Met One, Inc. Particle counter employing a solid-state laser with an intracavity view volume
US5671046A (en) * 1996-07-01 1997-09-23 Particle Measuring Systems, Inc. Device and method for optically detecting particles in a free liquid stream
US5920388A (en) * 1996-10-15 1999-07-06 Research Electro-Optics, Inc. Small particle characteristic determination
JP2956653B2 (ja) * 1996-12-16 1999-10-04 日本電気株式会社 パーティクルモニター装置
US5805281A (en) * 1997-04-21 1998-09-08 Particle Measuring Systems Noise reduction utilizing signal multiplication
US6031610A (en) * 1997-10-06 2000-02-29 Pacific Scientific Instruments Company Multi-lobe pump for particle counters
DE19752033A1 (de) * 1997-11-24 1999-06-10 Andreas Trampe Vorrichtung zur Detektion von Partikeln mit nicht abbildenden optischen Strukturen
US6346983B1 (en) 1998-01-29 2002-02-12 Aleksandr L. Yufa Methods and wireless communicating particle counting and measuring apparatus
US6137572A (en) * 1998-02-27 2000-10-24 Pacific Scientific Instruments Company High sensitivity optical fluid-borne particle detection
US5946092A (en) * 1998-02-27 1999-08-31 Pacific Scientific Instruments Company Dual laser heterodyne optical particle detection technique
US6061132A (en) * 1998-07-20 2000-05-09 Pacific Scientific Instruments Company Dual detector array with noise cancellation for a particle size detection device
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US7006682B1 (en) * 1999-09-09 2006-02-28 Nec Corporation Apparatus for monitoring particles and method of doing the same
JP3818867B2 (ja) * 2000-05-12 2006-09-06 リオン株式会社 光散乱式粒子検出器
US6723975B2 (en) * 2001-02-07 2004-04-20 Honeywell International Inc. Scanner for airborne laser system
US6696362B2 (en) * 2001-02-08 2004-02-24 Applied Materials Inc. Method for using an in situ particle sensor for monitoring particle performance in plasma deposition processes
EP1432972A1 (en) * 2001-09-07 2004-06-30 Inficon, Inc. Signal processing method for in-situ, scanned-beam particle monitoring
US6639671B1 (en) 2002-03-01 2003-10-28 Msp Corporation Wide-range particle counter
US6879398B2 (en) * 2002-05-22 2005-04-12 Lockheed Martin Corporation Distributed contaminant optical monitoring system
WO2004007017A2 (en) * 2002-07-16 2004-01-22 Research Electro-Optics, Inc. Method of noise cancellation in an unpolarized-laser instrument
AU2003253942A1 (en) * 2002-07-16 2004-02-02 Research Electro-Optics, Inc. Method for noise cancellation by spectral flattening of laser output in a multi-line-laser instrument
US7576857B2 (en) * 2002-08-27 2009-08-18 Particle Measuring Systems, Inc. Particle counter with laser diode
US6936828B2 (en) * 2003-02-14 2005-08-30 Honeywell International Inc. Particle detection system and method
US7023620B1 (en) 2003-07-03 2006-04-04 Research Electro-Optics, Inc. Beam array pitch controller
US6909102B1 (en) 2004-01-21 2005-06-21 Varian Semiconductor Equipment Associates, Inc. Ion implanter system, method and program product including particle detection
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US20060014300A1 (en) * 2004-07-15 2006-01-19 Maurer Scott M Sensor for detection and identification of biological particles
US7030980B1 (en) 2004-12-29 2006-04-18 Particle Measuring Systems, Inc. Diode pumped intracavity laser particle counter with improved reliability and reduced noise
US7456960B2 (en) * 2005-06-06 2008-11-25 Particle Measuring Systems, Inc. Particle counter with improved image sensor array
WO2008118769A1 (en) * 2007-03-23 2008-10-02 Particle Measuring Systems, Inc. Optical particle sensor with exhaust-cooled optical source
US7916293B2 (en) * 2007-12-04 2011-03-29 Particle Measuring Systems, Inc. Non-orthogonal particle detection systems and methods
US20120136584A1 (en) * 2009-08-04 2012-05-31 Kazuo Ban Detection apparatus and detection method for detecting microorganisms
JP5574250B2 (ja) 2009-08-24 2014-08-20 パーティクル・メージャーリング・システムズ・インコーポレーテッド 流量がモニタリングされる粒子センサ
DE102011000099A1 (de) * 2011-01-11 2012-07-12 Universität Duisburg-Essen Analyseeinrichtung zur Analyse eines Aerosols
SG11201402528TA (en) 2011-12-01 2014-10-30 P M L Particles Monitoring Technologies Ltd Detection scheme for particle size and concentration measurement
US8477307B1 (en) 2012-01-26 2013-07-02 Ann Rachel Yufa Methods and apparatus for biomedical agent multi-dimension measuring and analysis
US10983040B2 (en) 2013-03-15 2021-04-20 Particles Plus, Inc. Particle counter with integrated bootloader
US11579072B2 (en) 2013-03-15 2023-02-14 Particles Plus, Inc. Personal air quality monitoring system
US12044611B2 (en) 2013-03-15 2024-07-23 Particles Plus, Inc. Particle counter with integrated bootloader
US9677990B2 (en) 2014-04-30 2017-06-13 Particles Plus, Inc. Particle counter with advanced features
US10352844B2 (en) 2013-03-15 2019-07-16 Particles Plus, Inc. Multiple particle sensors in a particle counter
ITRM20130128U1 (it) 2013-07-23 2015-01-24 Particle Measuring Systems S R L Dispositivo per il campionamento microbico dell'aria
US9810558B2 (en) 2014-03-14 2017-11-07 Particle Measuring Systems, Inc. Pressure-based airflow sensing in particle impactor systems
US9631222B2 (en) 2014-03-14 2017-04-25 Particle Measuring Systems, Inc. Filter and blower geometry for particle sampler
JP6531528B2 (ja) * 2015-07-15 2019-06-19 富士電機株式会社 粒子検出装置
US10094755B1 (en) 2017-10-25 2018-10-09 Venturedyne, Ltd Environmental sensor and method of operating the same
WO2019082186A1 (en) 2017-10-26 2019-05-02 Particle Measuring Systems, Inc. SYSTEM AND METHOD FOR MEASURING PARTICLES
US10444137B2 (en) * 2018-01-23 2019-10-15 Cbrn International, Ltd. Bioaerosol detector having safeguards
US10359350B1 (en) * 2018-01-23 2019-07-23 Hai Lin Method and system for particle characterization in harsh environments
WO2020047457A1 (en) 2018-08-31 2020-03-05 Particle Measuring Systems, Inc. Fluid refractive index optimizing particle counter
WO2020051131A1 (en) 2018-09-04 2020-03-12 Particle Measuring Systems, Inc. Detecting nanoparticles on production equipment and surfaces
US11385161B2 (en) 2018-11-12 2022-07-12 Particle Measuring Systems, Inc. Calibration verification for optical particle analyzers
US11181455B2 (en) 2018-11-12 2021-11-23 Particle Measuring Systems, Inc. Calibration verification for optical particle analyzers
US10908059B2 (en) 2018-11-16 2021-02-02 Particle Measuring Systems, Inc. Slurry monitor coupling bulk size distribution and single particle detection
CN113039423B (zh) 2018-11-16 2024-09-06 粒子监测系统有限公司 用于机器人控制的制造屏障系统的粒子采样系统和方法
JP7504912B2 (ja) 2019-04-25 2024-06-24 パーティクル・メージャーリング・システムズ・インコーポレーテッド 軸上粒子検出及び/又は差分検出のための粒子検出システム及び方法
EP4022278A4 (en) 2019-08-26 2023-11-01 Particle Measuring Systems, Inc. TRIGGERED SCANNING SYSTEMS AND METHODS
KR102843087B1 (ko) 2019-10-07 2025-08-06 파티클 머슈어링 시스템즈, 인크. 원격 알람 모니터링 및 제어를 갖는 입자 검출기
WO2021071793A1 (en) 2019-10-07 2021-04-15 Particle Measuring Systems, Inc. Antimicrobial particle detectors
IT201900020248A1 (it) 2019-11-04 2021-05-04 Particle Measuring Systems S R L Dispositivo di monitoraggio mobile per aree a contaminazione controllata
CN114729868A (zh) 2019-11-22 2022-07-08 粒子监测系统有限公司 先进的用于干涉测量颗粒检测和具有小大小尺寸的颗粒的检测的系统和方法
WO2021150472A1 (en) 2020-01-21 2021-07-29 Particle Measuring Systems, Inc. Robotic control for aseptic processing
US11988591B2 (en) 2020-07-01 2024-05-21 Particles Plus, Inc. Modular optical particle counter sensor and apparatus
US11846578B2 (en) * 2020-09-28 2023-12-19 Lighthouse Worldwide Solutions Apparatus and method for characterization of particles
KR20240019343A (ko) 2021-06-15 2024-02-14 파티클 머슈어링 시스템즈, 인크. 도킹 스테이션을 갖춘 모듈식 입자 계수기
EP4356053A4 (en) 2021-06-15 2025-05-28 Particle Measuring Systems, Inc. Condensation particle counter and method of use
TW202319725A (zh) 2021-06-15 2023-05-16 美商粒子監測系統有限公司 緊湊型智慧氣溶膠及流體分歧管
KR20240135793A (ko) 2022-01-21 2024-09-12 파티클 머슈어링 시스템즈, 인크. 향상된 이중 통과 및 다중 통과 입자 검출
TW202536383A (zh) 2023-11-16 2025-09-16 美商粒子監測系統有限公司 用於減少粒子偵測器中之誤報粒子偵測事件的系統及方法
CN121026889B (zh) * 2025-10-31 2026-01-23 雅安宇焜芯材材料科技有限公司 一种氮化镓生产用排气粉尘检测装置及处理系统、方法

Citations (6)

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US3941982A (en) * 1974-07-22 1976-03-02 Particle Measuring Systems, Inc. Method and apparatus for two-dimensional data acquisition
DE2558392A1 (de) * 1975-01-08 1976-07-15 William Guy Rowe Partikelanalysator
DE2820661A1 (de) * 1977-05-12 1978-11-23 Eisai Co Ltd Verfahren und vorrichtung zur feststellung von fremdkoerpern in fluessigkeiten
US4571079A (en) * 1983-12-29 1986-02-18 Particle Measuring Systems, Inc. Aerosol sampling device and method with improved sample flow characteristics
US4594715A (en) * 1983-11-17 1986-06-10 Particle Measuring Systems, Inc. Laser with stabilized external passive cavity

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Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US3406289A (en) * 1965-11-10 1968-10-15 Univ Iowa State Res Found Inc Laser small-particle detector and method
US3941982A (en) * 1974-07-22 1976-03-02 Particle Measuring Systems, Inc. Method and apparatus for two-dimensional data acquisition
DE2558392A1 (de) * 1975-01-08 1976-07-15 William Guy Rowe Partikelanalysator
DE2820661A1 (de) * 1977-05-12 1978-11-23 Eisai Co Ltd Verfahren und vorrichtung zur feststellung von fremdkoerpern in fluessigkeiten
US4594715A (en) * 1983-11-17 1986-06-10 Particle Measuring Systems, Inc. Laser with stabilized external passive cavity
US4571079A (en) * 1983-12-29 1986-02-18 Particle Measuring Systems, Inc. Aerosol sampling device and method with improved sample flow characteristics

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Title
KNOLLENBERG, R.G. "The Measurement of Particle Sizes Below 0.1 Micrometers" in: The Journal of Environmental Sciences, Jan./Feb. 1985, S.1740 bis 1747 *
VDI-Richtlinien VDI 2083 "Reinraumtechnik/Ober- flächenreinheit" *

Also Published As

Publication number Publication date
JPS6311838A (ja) 1988-01-19
US4893928A (en) 1990-01-16
JP2786187B2 (ja) 1998-08-13
US4798465B2 (en) 1994-08-30
DE3712665A1 (de) 1987-10-15
US4798465B1 (enExample) 1991-09-17
US4798465A (en) 1989-01-17

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