ES2116322T3 - Sensor de particulas de gases de escape. - Google Patents

Sensor de particulas de gases de escape.

Info

Publication number
ES2116322T3
ES2116322T3 ES92309678T ES92309678T ES2116322T3 ES 2116322 T3 ES2116322 T3 ES 2116322T3 ES 92309678 T ES92309678 T ES 92309678T ES 92309678 T ES92309678 T ES 92309678T ES 2116322 T3 ES2116322 T3 ES 2116322T3
Authority
ES
Spain
Prior art keywords
photodiode
led
exhaust gas
header
particle sensor
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 - Lifetime
Application number
ES92309678T
Other languages
English (en)
Inventor
John Albert Pye
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
Application granted granted Critical
Publication of ES2116322T3 publication Critical patent/ES2116322T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01N21/27—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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • 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
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • G01J2001/1636—Arrangements with two photodetectors, the signals of which are compared one detector directly monitoring the source, e.g. also impulse time controlling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/062—LED's
    • G01N2201/0624—Compensating variation in output of LED source
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/069—Supply of sources
    • G01N2201/0691—Modulated (not pulsed supply)

Landscapes

  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Led Device Packages (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

EN UN DETECTOR DE LOS HUMOS DE ESCAPE, UN EMISOR DE LUZ (20) GENERA UN HAZ LUMINOSO QUE PASA A TRAVES DE UNA REGION QUE CONTIENE EL GAS DE ESCAPA HASTA UN PRIMER DETECTOR DE LUZ (38). PARA REDUCIR LAS INTERFERENCIAS, EL EMISOR DE LUZ (20) ES ACCIONADO POR UNA SEÑAL DE ONDA CUADRADA CERCANA (40) PRODUCIDA AL HACER PASAR A UNA ONDA CUADRADA (40A) A TRAVES DE UN FILTRO PASABAJOS (40B).
ES92309678T 1991-10-22 1992-10-22 Sensor de particulas de gases de escape. Expired - Lifetime ES2116322T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9122361A GB2260808B (en) 1991-10-22 1991-10-22 Exhaust gas particle sensor

Publications (1)

Publication Number Publication Date
ES2116322T3 true ES2116322T3 (es) 1998-07-16

Family

ID=10703311

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92309678T Expired - Lifetime ES2116322T3 (es) 1991-10-22 1992-10-22 Sensor de particulas de gases de escape.

Country Status (8)

Country Link
US (1) US5592296A (es)
EP (2) EP0539203B1 (es)
JP (1) JPH05240765A (es)
AT (1) ATE164007T1 (es)
DE (1) DE69224699T2 (es)
ES (1) ES2116322T3 (es)
GB (2) GB2288231B (es)
MX (1) MX9206069A (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333365B (en) * 1998-01-14 2001-11-21 Assembly Technology & Test Ltd Exhaust probe assembly
RU2210759C1 (ru) * 2001-12-29 2003-08-20 Самарский государственный аэрокосмический университет им. акад. С.П. Королева Контроллер дымности отходящих газов теплоэнергетических установок
US20040055402A1 (en) * 2002-07-10 2004-03-25 Pfizer Inc. Probe holder
GB2394551B (en) * 2002-10-23 2006-05-03 Premier Diagnostics Ltd Test device fot internal combustion engine
GB2395260B (en) * 2002-11-07 2005-11-02 E2V Tech Uk Ltd Gas sensors
GB2404731B (en) * 2003-07-31 2006-08-09 Apollo Fire Detectors Ltd Smoke detector with compact light source
DE102005040790A1 (de) * 2005-08-29 2007-03-01 Robert Bosch Gmbh Verfahren zum Betreiben eines Sensors zum Erfassen von Partikeln in einem Gasstrom und Vorrichtung zur Durchführung des Verfahrens
AT504436B8 (de) * 2007-03-01 2008-09-15 Anton Paar Gmbh Verfahren und vorrichtung zur bestimmung des alkoholgehaltes von flüssigkeiten
DE102011079769A1 (de) * 2011-07-25 2013-01-31 Robert Bosch Gmbh Vorrichtung und Verfahren zur Messung der Partikelkonzentration in einem Aerosol
JP5681655B2 (ja) * 2012-02-21 2015-03-11 日本特殊陶業株式会社 微粒子検知システム
US9933335B2 (en) 2016-06-17 2018-04-03 Wisconsin Alumni Research Foundation Combustion gas sensor assembly for engine control
US10429297B2 (en) * 2017-01-26 2019-10-01 Acumentor Llc Monitoring opacity of smoke exhausted by wood stove and controlling wood stove based on same
US12055477B2 (en) * 2021-09-29 2024-08-06 Kidde Technologies, Inc. Compressed gas cleaning of windows in particle concentration measurement device
US12222272B2 (en) 2022-03-03 2025-02-11 Ford Global Technologies, Llc Method and systems for optically sensing particulate matter

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833305A (en) * 1969-09-17 1974-09-03 Commercial Electronics Inc Gas analyzing apparatus
US3711210A (en) * 1971-07-06 1973-01-16 R Krukowski Smoke meter
US3743430A (en) * 1971-11-12 1973-07-03 Shell Oil Co Light transmission monitor
US3850529A (en) * 1972-10-26 1974-11-26 R Brugger Device for calibrating a transmissometer
US3895233A (en) * 1972-10-26 1975-07-15 Bailey Meter Co Gas analyzer
FR2277492A1 (fr) * 1974-07-05 1976-01-30 Thomson Csf Dispositif de commande de diode electroluminescente et systeme de communication optique comportant un tel dispositif
US3973852A (en) * 1974-08-30 1976-08-10 The Dow Chemical Company Method and apparatus for measuring particulate concentration in the atmosphere
FR2286594A1 (fr) * 1974-10-04 1976-04-30 Dauphine Bourguignon Const Agr Perfectionnements aux dispositifs de retournement des charrues
US3958122A (en) * 1974-12-19 1976-05-18 United Technologies Corporation Exhaust gas analyzer having pressure and temperature compensation
DD118328A1 (es) * 1975-01-14 1976-02-20
US3967904A (en) * 1975-01-15 1976-07-06 Electronics Corporation Of America Precision radiation source regulation circuit
US3997271A (en) * 1975-03-10 1976-12-14 Brugger Richard D Device for calibrating a transmissometer
US4087690A (en) * 1976-06-22 1978-05-02 E. I. Du Pont De Nemours And Company Spurious radiation compensation in infrared analyzers
US4125777A (en) * 1977-08-17 1978-11-14 Rca Corporation Radiation emitter-detector package
JPS56132035A (en) * 1980-03-21 1981-10-16 Matsushita Electric Works Ltd Countermeasure system for radio interference using trapezoidal wave transmission
FR2498024B1 (fr) * 1981-01-13 1985-06-14 Hennequin Cie Sa Ets Interface convertisseur pour eclairage de securite a partir d'une alimentation continue avec batterie d'accumulateurs
EP0076338A1 (en) * 1981-10-05 1983-04-13 Gamewell Corporation Broad-spectrum particle detector
US4544273A (en) * 1983-07-29 1985-10-01 Particulate Instruments Smoke opacity meter
US4583859A (en) * 1984-03-30 1986-04-22 The Babcock & Wilcox Company Filter cleaning system for opacity monitor
JPS6195591A (ja) * 1984-10-16 1986-05-14 Sony Corp 半導体レ−ザ
JP2597975B2 (ja) * 1985-03-26 1997-04-09 株式会社東芝 半導体発光素子及びその製造方法
DE3526458A1 (de) * 1985-07-24 1987-01-29 Grundig Emv Einrichtung zur optischen truebungsmessung von gasen
DE3535515A1 (de) * 1985-10-04 1987-04-09 Pantuc Ing Buero Verfahren und vorrichtung zur on-line-messung von transmission oder reflexion an bewegten objekten im bereich detektierbarer elektromagnetischer strahlung
US4817109A (en) * 1985-12-10 1989-03-28 501 Sharp Kabushiki Kaisha External resonator type semiconductor laser apparatus
JPS62260384A (ja) * 1986-05-06 1987-11-12 Mitsubishi Electric Corp 半導体装置
US4937461A (en) * 1988-08-22 1990-06-26 Traina John E Transmissometer having solid state light source
GB9102467D0 (en) * 1991-02-05 1991-03-20 Marconi Gec Ltd Exhaust gas particle measurement

Also Published As

Publication number Publication date
GB2260808A (en) 1993-04-28
GB9511061D0 (en) 1995-07-26
GB2288231B (en) 1996-02-21
EP0539203B1 (en) 1998-03-11
EP0539203A2 (en) 1993-04-28
US5592296A (en) 1997-01-07
EP0539203A3 (en) 1993-06-16
ATE164007T1 (de) 1998-03-15
JPH05240765A (ja) 1993-09-17
GB2288231A (en) 1995-10-11
GB9122361D0 (en) 1991-12-04
DE69224699T2 (de) 1998-07-09
DE69224699D1 (de) 1998-04-16
EP0816826A1 (en) 1998-01-07
MX9206069A (es) 1993-10-01
GB2260808B (en) 1996-02-28

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