IN2012DN04974A - - Google Patents

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Publication number
IN2012DN04974A
IN2012DN04974A IN4974DEN2012A IN2012DN04974A IN 2012DN04974 A IN2012DN04974 A IN 2012DN04974A IN 4974DEN2012 A IN4974DEN2012 A IN 4974DEN2012A IN 2012DN04974 A IN2012DN04974 A IN 2012DN04974A
Authority
IN
India
Prior art keywords
scattered light
difference
recorded
determining
signals
Prior art date
Application number
Inventor
Karl Stengel
Gerhard Haaga
Michael Neuendorf
Raymond Sieg
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of IN2012DN04974A publication Critical patent/IN2012DN04974A/en

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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
    • G01N21/4785—Standardising light scatter apparatus; Standards therefor
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • 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
    • G01N21/17—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
    • G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
    • G01N2021/513—Cuvettes for scattering measurements
    • 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
    • G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule

Landscapes

  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The present subject matter relates to a method for determining the quality of the measurement results of a scattered light meter (3) for measuring the particle concentration in motor vehicle exhaust gases, which device has at least one scattered light measurement chamber (26), at least one light source (4) and at least one light sensor (6a, 6b), said method comprising the following steps: determining the difference R between two scattered light sensor signals (S1, S2) which have been recorded in a reference state of the scattered light meter; determining the difference (D) between two scattered light sensor signals (M1, M2) which have been recorded in a used state of the scattered light meter; and comparing the difference (D) between the signals recorded in the used state to the reference signal difference (R) between the signals recorded in the reference state.
IN4974DEN2012 2010-02-26 2011-01-03 IN2012DN04974A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010002420 DE102010002420A1 (en) 2010-02-26 2010-02-26 Method and device for determining the quality of the measurement results of a scattered light measuring device
PCT/EP2011/050031 WO2011104039A1 (en) 2010-02-26 2011-01-03 Method and device for determining the quality of the measurement results of a scattered light meter

Publications (1)

Publication Number Publication Date
IN2012DN04974A true IN2012DN04974A (en) 2015-09-25

Family

ID=43856153

Family Applications (1)

Application Number Title Priority Date Filing Date
IN4974DEN2012 IN2012DN04974A (en) 2010-02-26 2011-01-03

Country Status (6)

Country Link
US (1) US8873052B2 (en)
EP (1) EP2539688B1 (en)
CN (1) CN102762972B (en)
DE (1) DE102010002420A1 (en)
IN (1) IN2012DN04974A (en)
WO (1) WO2011104039A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5822534B2 (en) * 2011-05-13 2015-11-24 株式会社日立ハイテクノロジーズ Automatic analyzer
WO2013018093A1 (en) * 2011-08-01 2013-02-07 Nova Measuring Instruments Ltd Monitoring system and method for verifying measurements in patterned structures
US20170059539A1 (en) * 2013-06-14 2017-03-02 Dresser, Inc. Modular metering system
CN105637342B (en) * 2013-09-30 2019-03-26 哈克兰格有限责任公司 The method that nephometer and the sample tube for detecting nephometer pollute
CN105424558B (en) * 2015-11-03 2018-05-22 上海理工大学 A kind of burning particles multiparameter measuring device and method using blue light back lighting
DE102018108538A1 (en) * 2018-04-11 2019-10-17 Audi Ag Method for determining traffic information

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976891A (en) 1975-02-18 1976-08-24 Electra-Tronics, Inc. Photoelectric detector for smoke or the like
US4688017A (en) * 1986-05-20 1987-08-18 Cooperbiomedical, Inc. Optical detector circuit for photometric instrument
DE4343897A1 (en) * 1993-12-22 1995-06-29 Bosch Gmbh Robert Device for determining the density and concentration of visible components in fluids
US5467187A (en) 1994-09-29 1995-11-14 Hf Scientific, Inc. Automatic calibration system for turbidimeters using a pulsing fluid flow to reciprocate a standard in a cuvette
ATE339680T1 (en) * 1995-04-06 2006-10-15 Delaval Holding Ab METHOD AND DEVICE FOR THE QUANTITATIVE DETERMINATION OF PARTICLES IN LIQUIDS
JPH10170435A (en) * 1996-12-05 1998-06-26 Daikin Ind Ltd Method and device for dust detection
JP3765549B2 (en) 1997-02-28 2006-04-12 日本碍子株式会社 Dust concentration measurement method
WO2009017721A2 (en) * 2007-07-28 2009-02-05 Buglab Llc Particle sensor with wide linear range
EP2040075A1 (en) * 2007-09-24 2009-03-25 Julius-Maximilians-Universität Würzburg Compounds and markers for surface-enhanced raman scattering

Also Published As

Publication number Publication date
CN102762972B (en) 2015-11-25
WO2011104039A1 (en) 2011-09-01
EP2539688A1 (en) 2013-01-02
US8873052B2 (en) 2014-10-28
CN102762972A (en) 2012-10-31
DE102010002420A1 (en) 2011-09-01
US20130057859A1 (en) 2013-03-07
EP2539688B1 (en) 2016-12-28

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