CA1041318A - Electro-optical method and system for in situ measurements of particulate mass density - Google Patents

Electro-optical method and system for in situ measurements of particulate mass density

Info

Publication number
CA1041318A
CA1041318A CA246,938A CA246938A CA1041318A CA 1041318 A CA1041318 A CA 1041318A CA 246938 A CA246938 A CA 246938A CA 1041318 A CA1041318 A CA 1041318A
Authority
CA
Canada
Prior art keywords
radiation
particles
medium
source
per unit
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
Application number
CA246,938A
Other languages
English (en)
French (fr)
Inventor
Gerhard Kreikebaum
Frederick M. Shofner
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.)
Environmental Systems Corp
Original Assignee
Environmental Systems Corp
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 Environmental Systems Corp filed Critical Environmental Systems Corp
Application granted granted Critical
Publication of CA1041318A publication Critical patent/CA1041318A/en
Expired 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
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N2001/225—Sampling from a flowing stream of gas isokinetic, same flow rate for sample and bulk gas

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)
CA246,938A 1975-03-05 1976-03-02 Electro-optical method and system for in situ measurements of particulate mass density Expired CA1041318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/555,355 US4017186A (en) 1975-03-05 1975-03-05 Electro-optical method and system for in situ measurements of particulate mass density

Publications (1)

Publication Number Publication Date
CA1041318A true CA1041318A (en) 1978-10-31

Family

ID=24216945

Family Applications (1)

Application Number Title Priority Date Filing Date
CA246,938A Expired CA1041318A (en) 1975-03-05 1976-03-02 Electro-optical method and system for in situ measurements of particulate mass density

Country Status (9)

Country Link
US (1) US4017186A (enExample)
JP (1) JPS51113660A (enExample)
CA (1) CA1041318A (enExample)
DE (1) DE2609246A1 (enExample)
FR (1) FR2303283A1 (enExample)
GB (1) GB1542296A (enExample)
IT (1) IT1057296B (enExample)
NL (1) NL7602336A (enExample)
SE (1) SE7602734L (enExample)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176960A (en) * 1975-10-21 1979-12-04 United Technologies Corporation Spatial resolution enhancement in coaxial light scattering systems
CH592933A5 (enExample) * 1976-04-05 1977-11-15 Cerberus Ag
US4140395A (en) * 1976-12-07 1979-02-20 Environmental Systems Corporation Electro-optical method and system for in situ measurements of particle size and distribution
FR2445523A1 (fr) * 1978-12-28 1980-07-25 Sable Sarl Procede pour mesurer le volume des matieres en suspension dans un liquide
US4269518A (en) * 1979-06-18 1981-05-26 The United States Of America As Represented By The Secretary Of The Navy Stray light eliminator in a scatterometer
US4482247A (en) * 1982-05-10 1984-11-13 United Technologies Corporation Forward scattering laser particulate sensor
FI78561C (fi) * 1986-02-25 1989-08-10 Valmet Automation Oy Foerfarande foer att maeta egenskaper av en blandning bestaoende av vaetska och fasta partiklar och en i foerfarandet anvaendbar anordning.
JPS62262328A (ja) * 1986-05-06 1987-11-14 オムロン株式会社 光電スイツチ
FR2600152B1 (fr) * 1986-06-17 1988-08-26 Pechiney Aluminium Dispositif et procede d'optimisation de la combustion dans les fours a chambres pour la cuisson de blocs carbones
ES2010215B3 (es) * 1986-06-17 1989-11-01 Pechiney Aluminium Dispositivo y procedimiento de optimizacion de la combustion en los hornos con camaras para la coccion de bloques carbonados.
US4841157A (en) * 1988-01-06 1989-06-20 Downing Jr John P Optical backscatter turbidimeter sensor
US4953978A (en) * 1989-03-03 1990-09-04 Coulter Electronics Of New England, Inc. Particle size analysis utilizing polarization intensity differential scattering
US5056918A (en) * 1989-03-03 1991-10-15 Coulter Electronics Of New England, Inc. Method and apparatus for particle size analysis
US5104221A (en) * 1989-03-03 1992-04-14 Coulter Electronics Of New England, Inc. Particle size analysis utilizing polarization intensity differential scattering
DE3917571A1 (de) * 1989-05-30 1990-12-06 Sick Optik Elektronik Erwin Verfahren zur messung auf intensitaet von streulicht und messvorrichtung zur durchfuehrung des verfahrens
US5028135A (en) * 1989-09-05 1991-07-02 University Of Akron Combined high spatial resolution and high total intensity selection optical train for laser spectroscopy
US5298968A (en) * 1989-09-05 1994-03-29 The University Of Akron Combined optical train for laser spectroscopy
FR2654839B1 (fr) * 1989-11-21 1992-03-20 Curie Paris 6 Univ Pierre Mari Appareil pour l'etude de la stratosphere par sondage laser.
US5063301A (en) * 1989-12-21 1991-11-05 The Standard Oil Company Noninvasive method and apparatus using coherent backscattering for process control
US5202570A (en) * 1990-03-27 1993-04-13 Tokyo Gas Co., Ltd. Gas detection device
DK171153B1 (da) * 1995-02-10 1996-07-01 Slagteriernes Forskningsinst Fremgangsmåde og anlæg ved blanding af et uensartet, strømningsdygtigt fødevare-, foder- eller farmaceutisk materiale samt indretning til udtagelse afprøver
US5831730A (en) * 1996-12-06 1998-11-03 United Sciences, Inc. Method for monitoring particulates using beam-steered solid-state light source
US6055052A (en) * 1998-01-26 2000-04-25 Mie Corporation System for, and method of, monitoring airborne particulate, including particulate of the PM2.5 class
US6021678A (en) * 1998-05-27 2000-02-08 Kennecott Utah Copper Corporation Apparatus for transporting emissions from a stack
WO1999064841A1 (en) * 1998-06-12 1999-12-16 Rose Thomas H Backscatter instrument for monitoring particulate levels in a gas stream
DE19925583C2 (de) * 1999-06-04 2002-06-13 Lavision Gmbh Verfahren zur Bestimmung der räumlichen Konzentration der einzelnen Komponenten eines Gemisches, insbes. eines Gasgemisches in einem Brennraum, insbes. eines Motors sowie eine Anordnung zur Durchführung des Verfahrens
ES2315262T3 (es) * 2001-08-17 2009-04-01 Mcdermott Technology, Inc. Detector de humos de dispersion de luz.
US7142298B2 (en) * 2003-09-29 2006-11-28 Shaw Intellectual Property Holdings, Inc. Particulate monitor
DE102011002421A1 (de) 2011-01-04 2012-07-05 Robert Bosch Gmbh Messgerät zur Messung von Partikelkonzentrationen mittels Streulicht und Verfahren zur Überwachung des Messgerätes
DE102018212685B4 (de) * 2018-07-30 2023-06-22 Robert Bosch Gmbh Optische Partikelsensorvorrichtung und entsprechendes Partikelmessverfahren

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1206169B (de) * 1961-05-16 1965-12-02 Fruengel Frank Dr Ing Verfahren zur Sichtweitenmessung unter Einwirkung vollen Tageslichtes
US3310680A (en) * 1964-03-06 1967-03-21 Hasegawa Toshitsune Photosensitive concentration measuring apparatus for colloidal solutions
US3524707A (en) * 1967-08-14 1970-08-18 Julian E Hansen Sr Pulsating light source smoke detector
GB1285977A (en) * 1968-12-23 1972-08-16 Gam Rad Improved turbidimeter
US3563661A (en) * 1969-08-29 1971-02-16 Battelle Development Corp Integrating nephelometer
US3854045A (en) * 1970-10-21 1974-12-10 Bergwerksverband Gmbh Measuring the dust concentration in air
US3782824A (en) * 1972-06-01 1974-01-01 Sperry Rand Corp Apparatus and method for measuring extinction coefficient of an atmospheric scattering medium

Also Published As

Publication number Publication date
GB1542296A (en) 1979-03-14
FR2303283B1 (enExample) 1981-09-25
DE2609246A1 (de) 1976-09-16
NL7602336A (nl) 1976-09-07
US4017186A (en) 1977-04-12
IT1057296B (it) 1982-03-10
FR2303283A1 (fr) 1976-10-01
SE7602734L (sv) 1976-09-06
JPS51113660A (en) 1976-10-06

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