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WO2003019160A3 - Open path emission sensing system - Google Patents

Open path emission sensing system Download PDF

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Publication number
WO2003019160A3
WO2003019160A3 PCT/US2002/025173 US0225173W WO03019160A3 WO 2003019160 A3 WO2003019160 A3 WO 2003019160A3 US 0225173 W US0225173 W US 0225173W WO 03019160 A3 WO03019160 A3 WO 03019160A3
Authority
WO
WIPO (PCT)
Prior art keywords
detection unit
light
light sources
open path
particulate matter
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.)
Ceased
Application number
PCT/US2002/025173
Other languages
French (fr)
Other versions
WO2003019160A2 (en
Inventor
Craig S Rendahl
John Didomenico
Robert A Gentala
Theresa A Foley
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.)
SPX Technologies Inc
Original Assignee
SPX 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
Priority claimed from US09/934,272 external-priority patent/US6744516B2/en
Application filed by SPX Corp filed Critical SPX Corp
Priority to AU2002331016A priority Critical patent/AU2002331016A1/en
Publication of WO2003019160A2 publication Critical patent/WO2003019160A2/en
Publication of WO2003019160A3 publication Critical patent/WO2003019160A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
    • G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
    • G01M15/108—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases using optical methods
    • 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
    • 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
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • 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
    • G01N1/2252—Sampling from a flowing stream of gas in a vehicle exhaust
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G01N15/075—Investigating concentration of particle suspensions by optical means
    • 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
    • G01N2001/2264—Sampling from a flowing stream of gas with dilution
    • 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
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/3155—Measuring in two spectral ranges, e.g. UV and visible
    • 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
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/317—Special constructive features
    • G01N2021/3174—Filter wheel
    • 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
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G01N2021/3513—Open path with an instrumental source
    • 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
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G01N21/3518—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
    • G01N2021/3527—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques and using one filter cell as attenuator

Landscapes

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

Abstract

An open path device for measuring particulate matter and/or gaseous components in an air sample, for example in a vehicle emissions, includes one or more light sources (120, 144, 146) for emitting visible and/or infrared and/or ultraviolet light and a detection unit (90) for detecting light emitted by the one or more light sources, transmitted through the air sample and reflected back to the detection unit by a reflection unit (124). In a configuration with plural light sources (120, 144, 146) the light beams (122, 148, 152) emitted from the light sources are combined by beam splitter/combiner means (140, 142) to follow essentially the same optical path (132, 134) to the detection unit. Particulate matter and/or gaseous component concentrations are derived from light intensities measured by a detection unit using the Lambert-Beer law.
PCT/US2002/025173 2001-08-21 2002-08-09 Open path emission sensing system Ceased WO2003019160A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002331016A AU2002331016A1 (en) 2001-08-21 2002-08-09 Open path emission sensing system

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US09/934,272 2001-08-21
US09/934,272 US6744516B2 (en) 2001-08-21 2001-08-21 Optical path structure for open path emissions sensing
US10/028,725 2001-12-28
US10/028,724 2001-12-28
US10/028,723 US6833922B2 (en) 2001-08-21 2001-12-28 Optical path structure for open path emissions sensing with opposed sources
US10/028,725 US6744059B2 (en) 2001-08-21 2001-12-28 Optical path structure for open path emissions sensing with spinning mirror
US10/028,723 2001-12-28
US10/028,724 US6723990B2 (en) 2001-08-21 2001-12-28 Optical path structure for open path emissions sensing with spinning filter wheel
US10/142,061 2002-05-10
US10/142,061 US6900893B2 (en) 2001-08-21 2002-05-10 Optical path structure for open path emissions sensing with particulate matter and lubricating oil consumption absorption methodology

Publications (2)

Publication Number Publication Date
WO2003019160A2 WO2003019160A2 (en) 2003-03-06
WO2003019160A3 true WO2003019160A3 (en) 2003-08-14

Family

ID=27739434

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/025173 Ceased WO2003019160A2 (en) 2001-08-21 2002-08-09 Open path emission sensing system

Country Status (1)

Country Link
WO (1) WO2003019160A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009025147B3 (en) * 2009-06-17 2010-12-09 Abb Ag Method for operating a spectrometer for gas analysis, and spectrometer itself
CN103868833A (en) * 2012-12-13 2014-06-18 张艳丽 Particulate matter-containing air shooting quantization assessment method and apparatus
DE102016124068A1 (en) * 2016-12-12 2018-06-14 HELLA GmbH & Co. KGaA Measuring device and method for fine dust measurement for a motor vehicle
CN109975224B (en) * 2019-04-17 2024-04-05 西南交通大学 Gas shooting detection system
GB2587780B (en) 2019-06-28 2021-10-20 Protea Ltd In-situ infra-red & ultra-violet photometer
GB2595617B (en) * 2019-06-28 2022-05-25 Protea Ltd In-situ infra-red & ultra-violet photometer
CN113588585B (en) * 2021-06-25 2024-08-06 张玉芝 Rapid detection method for composite gas component
CN113670889B (en) * 2021-06-25 2024-10-15 张玉芝 Comprehensive gas detection device
JP7544295B2 (en) * 2022-04-05 2024-09-03 富士電機株式会社 Gas Analyzers
CN119043662B (en) * 2024-10-30 2025-01-28 山东中科际联光电集成技术研究院有限公司 Thermal vacuum beam combiner testing system and testing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009064A (en) * 1987-11-23 1991-04-23 Robert Bosch Gmbh Apparatus for measuring the particulate matter in the flue gas or exhaust gas from a combustion process
EP0869349A2 (en) * 1997-04-03 1998-10-07 AVL List GmbH Device for turbidity measurement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009064A (en) * 1987-11-23 1991-04-23 Robert Bosch Gmbh Apparatus for measuring the particulate matter in the flue gas or exhaust gas from a combustion process
EP0869349A2 (en) * 1997-04-03 1998-10-07 AVL List GmbH Device for turbidity measurement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PAGANINI E ET AL: "Instrument for long-path spectral extinction measurements in air: application to sizing of airborne particles", APPLIED OPTICS, vol. 40, no. 24, 20 August 2001 (2001-08-20), pages 4261 - 4274, XP002226218 *

Also Published As

Publication number Publication date
WO2003019160A2 (en) 2003-03-06

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