DE69224699D1 - Fühler zur Messung des Russanteils in Abgasen - Google Patents
Fühler zur Messung des Russanteils in AbgasenInfo
- Publication number
- DE69224699D1 DE69224699D1 DE69224699T DE69224699T DE69224699D1 DE 69224699 D1 DE69224699 D1 DE 69224699D1 DE 69224699 T DE69224699 T DE 69224699T DE 69224699 T DE69224699 T DE 69224699T DE 69224699 D1 DE69224699 D1 DE 69224699D1
- Authority
- DE
- Germany
- Prior art keywords
- photodiode
- led
- sensor
- soot
- proportion
- 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
Links
- 239000007789 gas Substances 0.000 title 1
- 239000004071 soot Substances 0.000 title 1
- 230000003287 optical effect Effects 0.000 abstract 1
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)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Engineering & 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)
- Led Device Packages (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Sampling And Sample Adjustment (AREA)
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 (2)
Publication Number | Publication Date |
---|---|
DE69224699D1 true DE69224699D1 (de) | 1998-04-16 |
DE69224699T2 DE69224699T2 (de) | 1998-07-09 |
Family
ID=10703311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69224699T Expired - Fee Related DE69224699T2 (de) | 1991-10-22 | 1992-10-22 | Fühler zur Messung des Russanteils in Abgasen |
Country Status (8)
Country | Link |
---|---|
US (1) | US5592296A (de) |
EP (2) | EP0816826A1 (de) |
JP (1) | JPH05240765A (de) |
AT (1) | ATE164007T1 (de) |
DE (1) | DE69224699T2 (de) |
ES (1) | ES2116322T3 (de) |
GB (2) | GB2288231B (de) |
MX (1) | MX9206069A (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2333365B (en) * | 1998-01-14 | 2001-11-21 | Assembly Technology & Test Ltd | Exhaust probe assembly |
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 |
US20230095478A1 (en) * | 2021-09-29 | 2023-03-30 | Kidde Technologies, Inc. | Compressed gas cleaning of windows in particle concentration measurement device |
Family Cites Families (27)
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 (de) * | 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 (de) * | 1981-10-05 | 1983-04-13 | Gamewell Corporation | Breitspektrum-Teilchendetektor |
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 |
-
1991
- 1991-10-22 GB GB9511061A patent/GB2288231B/en not_active Expired - Fee Related
- 1991-10-22 GB GB9122361A patent/GB2260808B/en not_active Expired - Fee Related
-
1992
- 1992-10-22 EP EP97202522A patent/EP0816826A1/de not_active Withdrawn
- 1992-10-22 MX MX9206069A patent/MX9206069A/es not_active IP Right Cessation
- 1992-10-22 ES ES92309678T patent/ES2116322T3/es not_active Expired - Lifetime
- 1992-10-22 DE DE69224699T patent/DE69224699T2/de not_active Expired - Fee Related
- 1992-10-22 EP EP92309678A patent/EP0539203B1/de not_active Expired - Lifetime
- 1992-10-22 AT AT92309678T patent/ATE164007T1/de not_active IP Right Cessation
- 1992-10-22 JP JP4325895A patent/JPH05240765A/ja active Pending
-
1995
- 1995-12-14 US US08/574,558 patent/US5592296A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0539203A3 (en) | 1993-06-16 |
GB9122361D0 (en) | 1991-12-04 |
GB2260808B (en) | 1996-02-28 |
ES2116322T3 (es) | 1998-07-16 |
DE69224699T2 (de) | 1998-07-09 |
EP0539203B1 (de) | 1998-03-11 |
JPH05240765A (ja) | 1993-09-17 |
GB2288231A (en) | 1995-10-11 |
GB2288231B (en) | 1996-02-21 |
EP0539203A2 (de) | 1993-04-28 |
US5592296A (en) | 1997-01-07 |
GB2260808A (en) | 1993-04-28 |
ATE164007T1 (de) | 1998-03-15 |
GB9511061D0 (en) | 1995-07-26 |
EP0816826A1 (de) | 1998-01-07 |
MX9206069A (es) | 1993-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |