HK1041520B - 氮氧化物檢測功能得到提高的排放遙感系統 - Google Patents

氮氧化物檢測功能得到提高的排放遙感系統

Info

Publication number
HK1041520B
HK1041520B HK02102470.3A HK02102470A HK1041520B HK 1041520 B HK1041520 B HK 1041520B HK 02102470 A HK02102470 A HK 02102470A HK 1041520 B HK1041520 B HK 1041520B
Authority
HK
Hong Kong
Prior art keywords
sub
reading
ambient
exhaust
plume
Prior art date
Application number
HK02102470.3A
Other languages
English (en)
Other versions
HK1041520A1 (en
Inventor
John D Didomenico
Craig S Rendahl
Original Assignee
Envirotest 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 Envirotest Systems Corp filed Critical Envirotest Systems Corp
Publication of HK1041520A1 publication Critical patent/HK1041520A1/xx
Publication of HK1041520B publication Critical patent/HK1041520B/zh

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0037—NOx
    • 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
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
    • 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
    • G01N2021/1793—Remote sensing
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire Alarms (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Catching Or Destruction (AREA)
  • Measurement Of Radiation (AREA)
  • Control Of Combustion (AREA)
  • Pinball Game Machines (AREA)
HK02102470.3A 1998-09-17 2002-04-03 氮氧化物檢測功能得到提高的排放遙感系統 HK1041520B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10091398P 1998-09-17 1998-09-17
PCT/US1999/021286 WO2000016068A1 (en) 1998-09-17 1999-09-17 REMOTE EMISSIONS SENSING SYSTEM WITH IMPROVED NOx DETECTION

Publications (2)

Publication Number Publication Date
HK1041520A1 HK1041520A1 (en) 2002-07-12
HK1041520B true HK1041520B (zh) 2006-12-29

Family

ID=22282175

Family Applications (1)

Application Number Title Priority Date Filing Date
HK02102470.3A HK1041520B (zh) 1998-09-17 2002-04-03 氮氧化物檢測功能得到提高的排放遙感系統

Country Status (9)

Country Link
US (1) US6983639B1 (zh)
EP (1) EP1137925B1 (zh)
AT (1) ATE344924T1 (zh)
AU (1) AU6147199A (zh)
BR (1) BR9913827A (zh)
DE (1) DE69933941T2 (zh)
ES (1) ES2276534T3 (zh)
HK (1) HK1041520B (zh)
WO (1) WO2000016068A1 (zh)

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US7400398B2 (en) 2006-05-09 2008-07-15 Environmental Systems Products Holdings Inc. Remote emissions sensing system and method incorporating spectral matching by data interpolation
US8004682B2 (en) * 2008-04-16 2011-08-23 Infineon Technologies Ag Methods and systems for analyzing a volume of gas
US8429957B2 (en) 2008-05-02 2013-04-30 Envirotest Systems Holdings Corp. System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehicles
US8347701B2 (en) 2008-05-02 2013-01-08 Envirotest Systems Holdings Corp. System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehicles
US7930931B2 (en) * 2008-05-02 2011-04-26 Environmental Systems Products Holdings Inc. System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehicles
DE102009037706A1 (de) * 2009-08-17 2011-02-24 Opsolution Nanophotonics Gmbh Verfahren und Vorrichtung zur Bestimmung der Konzentration von NO2 in Gasgemischen
US8447528B2 (en) * 2009-12-21 2013-05-21 Envirotest Systems Holdings Corp. Remote vehicle emissions sensing system and method for differentiating water from hydrocarbons
WO2016142733A1 (en) * 2015-03-09 2016-09-15 Chohol System and method for use in connection on with pollutant emissions
US10724945B2 (en) * 2016-04-19 2020-07-28 Cascade Technologies Holdings Limited Laser detection system and method
GB201700905D0 (en) 2017-01-19 2017-03-08 Cascade Tech Holdings Ltd Close-Coupled Analyser

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Also Published As

Publication number Publication date
ES2276534T3 (es) 2007-06-16
EP1137925B1 (en) 2006-11-08
DE69933941D1 (de) 2006-12-21
EP1137925A4 (en) 2004-04-28
US6983639B1 (en) 2006-01-10
BR9913827A (pt) 2001-10-02
AU6147199A (en) 2000-04-03
WO2000016068A1 (en) 2000-03-23
EP1137925A1 (en) 2001-10-04
HK1041520A1 (en) 2002-07-12
ATE344924T1 (de) 2006-11-15
DE69933941T2 (de) 2007-06-21

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Legal Events

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PE Patent expired

Effective date: 20190916