GB2252621B - Exhaust gas opacity measurement - Google Patents

Exhaust gas opacity measurement

Info

Publication number
GB2252621B
GB2252621B GB9105731A GB9105731A GB2252621B GB 2252621 B GB2252621 B GB 2252621B GB 9105731 A GB9105731 A GB 9105731A GB 9105731 A GB9105731 A GB 9105731A GB 2252621 B GB2252621 B GB 2252621B
Authority
GB
United Kingdom
Prior art keywords
exhaust gas
opacity measurement
gas opacity
measurement
exhaust
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 - Fee Related
Application number
GB9105731A
Other versions
GB9105731D0 (en
GB2252621A (en
Inventor
John Albert Pye
Philip Edward Stephens
Paul Steven Derbyshire
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.)
BAE Systems Electronics Ltd
Original Assignee
GEC Marconi Ltd
Marconi Co Ltd
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 GEC Marconi Ltd, Marconi Co Ltd filed Critical GEC Marconi Ltd
Priority to GB9501130A priority Critical patent/GB2284049B/en
Priority to GB9501131A priority patent/GB2284050B/en
Publication of GB9105731D0 publication Critical patent/GB9105731D0/en
Publication of GB2252621A publication Critical patent/GB2252621A/en
Application granted granted Critical
Publication of GB2252621B publication Critical patent/GB2252621B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • 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
    • G01N2021/3148—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 using three or more wavelengths
    • 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
    • G01N2021/4704—Angular selective
    • G01N2021/4709—Backscatter
    • 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
    • G01N2021/4704—Angular selective
    • G01N2021/4711—Multiangle measurement
    • 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
    • G01N21/532—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke with measurement of scattering and transmission

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)
GB9105731A 1991-02-05 1991-03-19 Exhaust gas opacity measurement Expired - Fee Related GB2252621B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9501130A GB2284049B (en) 1991-02-05 1991-03-19 Gaseous suspension particle size measurement
GB9501131A GB2284050B (en) 1991-02-05 1991-03-19 Gaseous suspension particle size measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919102467A GB9102467D0 (en) 1991-02-05 1991-02-05 Exhaust gas particle measurement

Publications (3)

Publication Number Publication Date
GB9105731D0 GB9105731D0 (en) 1991-05-01
GB2252621A GB2252621A (en) 1992-08-12
GB2252621B true GB2252621B (en) 1995-08-02

Family

ID=10689574

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919102467A Pending GB9102467D0 (en) 1991-02-05 1991-02-05 Exhaust gas particle measurement
GB9105731A Expired - Fee Related GB2252621B (en) 1991-02-05 1991-03-19 Exhaust gas opacity measurement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919102467A Pending GB9102467D0 (en) 1991-02-05 1991-02-05 Exhaust gas particle measurement

Country Status (1)

Country Link
GB (2) GB9102467D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260808B (en) * 1991-10-22 1996-02-28 Marconi Gec Ltd Exhaust gas particle sensor
DE4343897A1 (en) * 1993-12-22 1995-06-29 Bosch Gmbh Robert Device for determining the density and concentration of visible components in fluids
GB0103885D0 (en) * 2001-02-16 2001-04-04 Assembly Technology & Test Ltd Apparatus for monitoring engine exhaust
US6701256B2 (en) * 2001-09-11 2004-03-02 Environmental Systems Products Holdings Inc. Exhaust opacity measuring device
GB2404979B (en) * 2003-08-15 2006-07-12 Omitec Group Ltd Testing diesel engines
JP4227991B2 (en) * 2005-12-28 2009-02-18 トヨタ自動車株式会社 Exhaust gas analyzer and exhaust gas analysis method
WO2022105258A1 (en) * 2020-11-21 2022-05-27 山东鸣川汽车集团有限公司 Environmental monitoring method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600590A (en) * 1968-11-12 1971-08-17 Harry Einstein Gas measuring apparatus for detecting contaminants
US3632209A (en) * 1970-04-28 1972-01-04 Susquehanna Corp System for measuring light transmittance through absorptive or diffusive media
US3743430A (en) * 1971-11-12 1973-07-03 Shell Oil Co Light transmission monitor
US3957372A (en) * 1974-12-19 1976-05-18 United Technologies Corporation Vehicle exhaust gas analysis system
US4017193A (en) * 1976-03-02 1977-04-12 Leo Loiterman Apparatus for measuring the transmittance or opacity of a gaseous medium carrying particulate matter through a conduit
US4544273A (en) * 1983-07-29 1985-10-01 Particulate Instruments Smoke opacity meter
EP0209704A2 (en) * 1985-07-24 1987-01-28 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Device for the optical measurement of the turbidity of gases
US4924095A (en) * 1987-06-02 1990-05-08 West Lodge Research Remote gas analyzer for motor vehicle exhaust emissions surveillance

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600590A (en) * 1968-11-12 1971-08-17 Harry Einstein Gas measuring apparatus for detecting contaminants
US3632209A (en) * 1970-04-28 1972-01-04 Susquehanna Corp System for measuring light transmittance through absorptive or diffusive media
US3743430A (en) * 1971-11-12 1973-07-03 Shell Oil Co Light transmission monitor
US3957372A (en) * 1974-12-19 1976-05-18 United Technologies Corporation Vehicle exhaust gas analysis system
US4017193A (en) * 1976-03-02 1977-04-12 Leo Loiterman Apparatus for measuring the transmittance or opacity of a gaseous medium carrying particulate matter through a conduit
US4544273A (en) * 1983-07-29 1985-10-01 Particulate Instruments Smoke opacity meter
EP0209704A2 (en) * 1985-07-24 1987-01-28 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Device for the optical measurement of the turbidity of gases
US4713964A (en) * 1985-07-24 1987-12-22 Grundig E.M.V. Elektro-Mechanische Versuchsantalt Max Grundig Holland.Stiftung & Co. Kg Device for optical turbidity measuring of gases
US4924095A (en) * 1987-06-02 1990-05-08 West Lodge Research Remote gas analyzer for motor vehicle exhaust emissions surveillance

Also Published As

Publication number Publication date
GB9105731D0 (en) 1991-05-01
GB2252621A (en) 1992-08-12
GB9102467D0 (en) 1991-03-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020319