GB1470381A - Absorption measurement apparatus for analysing internal com bustion engine exhaust gas - Google Patents

Absorption measurement apparatus for analysing internal com bustion engine exhaust gas

Info

Publication number
GB1470381A
GB1470381A GB1535073A GB1535073A GB1470381A GB 1470381 A GB1470381 A GB 1470381A GB 1535073 A GB1535073 A GB 1535073A GB 1535073 A GB1535073 A GB 1535073A GB 1470381 A GB1470381 A GB 1470381A
Authority
GB
United Kingdom
Prior art keywords
signals
detector
components
filter wheel
exhaust gas
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
GB1535073A
Other languages
English (en)
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.)
Philips Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB1535073A priority Critical patent/GB1470381A/en
Priority to DE2414229A priority patent/DE2414229A1/de
Priority to NL7404028A priority patent/NL7404028A/xx
Priority to IT67982/74A priority patent/IT1011642B/it
Priority to FR7411399A priority patent/FR2223691B1/fr
Priority to CA196,397A priority patent/CA1000070A/en
Priority to JP49035197A priority patent/JPS5030580A/ja
Publication of GB1470381A publication Critical patent/GB1470381A/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
    • G01N21/25—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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
GB1535073A 1973-03-30 1973-03-30 Absorption measurement apparatus for analysing internal com bustion engine exhaust gas Expired GB1470381A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB1535073A GB1470381A (en) 1973-03-30 1973-03-30 Absorption measurement apparatus for analysing internal com bustion engine exhaust gas
DE2414229A DE2414229A1 (de) 1973-03-30 1974-03-25 Vorrichtung zum analysieren gasfoermiger gemische
NL7404028A NL7404028A (enrdf_load_stackoverflow) 1973-03-30 1974-03-26
IT67982/74A IT1011642B (it) 1973-03-30 1974-03-27 Apparecchio per analisi di miscele gassose
FR7411399A FR2223691B1 (enrdf_load_stackoverflow) 1973-03-30 1974-03-29
CA196,397A CA1000070A (en) 1973-03-30 1974-03-29 Gaseous mixture analyser using multiple frequency bands
JP49035197A JPS5030580A (enrdf_load_stackoverflow) 1973-03-30 1974-03-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1535073A GB1470381A (en) 1973-03-30 1973-03-30 Absorption measurement apparatus for analysing internal com bustion engine exhaust gas

Publications (1)

Publication Number Publication Date
GB1470381A true GB1470381A (en) 1977-04-14

Family

ID=10057587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1535073A Expired GB1470381A (en) 1973-03-30 1973-03-30 Absorption measurement apparatus for analysing internal com bustion engine exhaust gas

Country Status (7)

Country Link
JP (1) JPS5030580A (enrdf_load_stackoverflow)
CA (1) CA1000070A (enrdf_load_stackoverflow)
DE (1) DE2414229A1 (enrdf_load_stackoverflow)
FR (1) FR2223691B1 (enrdf_load_stackoverflow)
GB (1) GB1470381A (enrdf_load_stackoverflow)
IT (1) IT1011642B (enrdf_load_stackoverflow)
NL (1) NL7404028A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5973326A (en) * 1996-08-10 1999-10-26 Eev Limited Gas monitors
CN102621106A (zh) * 2012-03-27 2012-08-01 北京智威宇讯科技有限公司 多倍光程反射腔体
CN102016550B (zh) * 2008-02-21 2012-12-19 热费希尔科学公司 气体分析仪系统
WO2014150447A1 (en) * 2013-03-15 2014-09-25 Grove Instruments Inc. Multiplexing and non-multiplexing noninvasive analyte concentration measurement system and methods

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480191A (en) * 1982-09-27 1984-10-30 Sun Electric Corporation Automatic gain control for an infrared source of an automotive emissions analyzer
AT379452B (de) * 1983-04-21 1986-01-10 Avl Verbrennungskraft Messtech Verfahren zur bestimmung der massen von absorbierenden anteilen einer probe und vorrichtung zur durchfuehrung des verfahrens
US4549080A (en) * 1983-06-17 1985-10-22 Infrared Industries, Inc. Double-pass flue gas analyzer
FI75675C (fi) * 1984-03-23 1988-07-11 Saehkoeliikkeiden Oy Foerfarande foer bestaemning av kolvaetehalter i vaetskor innehaollande dessa.
DE3588055T2 (de) * 1984-11-13 1996-02-15 Shields Instr Ltd Infrarot-spektrophotometrisches Verfahren.
AT391208B (de) * 1985-12-09 1990-09-10 Avl Verbrennungskraft Messtech Verfahren zur quantitativen messung von kohlenwasserstoffen
US5055690A (en) * 1989-02-10 1991-10-08 Gas Research Institute Method of eliminating water vapor interference in detecting gases
US4996431A (en) * 1989-02-10 1991-02-26 Gas Research Institute Selective gas detecting apparatus
US4958076A (en) * 1989-02-10 1990-09-18 Gas Research Institute Selective natural gas detecting apparatus
JPH02144277U (enrdf_load_stackoverflow) * 1989-04-28 1990-12-06
JP3228080B2 (ja) * 1995-08-07 2001-11-12 富士電機株式会社 多重反射形試料セル
JP7289272B2 (ja) * 2019-11-27 2023-06-09 ポリマー キャラクタライゼーション，エセ．アー． 試料中の成分吸光度を測定するための赤外線検出器および方法
JPWO2023120231A1 (enrdf_load_stackoverflow) * 2021-12-20 2023-06-29

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5973326A (en) * 1996-08-10 1999-10-26 Eev Limited Gas monitors
CN102016550B (zh) * 2008-02-21 2012-12-19 热费希尔科学公司 气体分析仪系统
EP2252877A4 (en) * 2008-02-21 2016-08-31 Thermo Fisher Scientific Inc Gas Analyzer
CN102621106A (zh) * 2012-03-27 2012-08-01 北京智威宇讯科技有限公司 多倍光程反射腔体
WO2014150447A1 (en) * 2013-03-15 2014-09-25 Grove Instruments Inc. Multiplexing and non-multiplexing noninvasive analyte concentration measurement system and methods

Also Published As

Publication number Publication date
NL7404028A (enrdf_load_stackoverflow) 1974-10-02
DE2414229A1 (de) 1974-10-10
CA1000070A (en) 1976-11-23
IT1011642B (it) 1977-02-10
JPS5030580A (enrdf_load_stackoverflow) 1975-03-26
FR2223691B1 (enrdf_load_stackoverflow) 1977-10-21
FR2223691A1 (enrdf_load_stackoverflow) 1974-10-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee