DK0738405T3 - Selvkalibrerende NDIR gassensor - Google Patents
Selvkalibrerende NDIR gassensorInfo
- Publication number
- DK0738405T3 DK0738405T3 DK94925177T DK94925177T DK0738405T3 DK 0738405 T3 DK0738405 T3 DK 0738405T3 DK 94925177 T DK94925177 T DK 94925177T DK 94925177 T DK94925177 T DK 94925177T DK 0738405 T3 DK0738405 T3 DK 0738405T3
- Authority
- DK
- Denmark
- Prior art keywords
- calibrating
- self
- gas sensor
- ndir gas
- ndir
- Prior art date
Links
- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 title 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
- G01N21/31—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
- 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
- G01N21/59—Transmissivity
- G01N21/61—Non-dispersive gas analysers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (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 Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1994/008780 WO1996004607A1 (en) | 1991-09-19 | 1994-08-02 | Self-calibration of an ndir gas sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0738405T3 true DK0738405T3 (da) | 2009-05-04 |
Family
ID=22242811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK94925177T DK0738405T3 (da) | 1994-08-02 | 1994-08-02 | Selvkalibrerende NDIR gassensor |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0738405B1 (da) |
AT (1) | ATE423305T1 (da) |
DE (1) | DE69435188D1 (da) |
DK (1) | DK0738405T3 (da) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4355533A (en) * | 1978-09-28 | 1982-10-26 | Electronic Associates, Inc. | Gas measurement and analysis system |
US4820129A (en) * | 1982-06-08 | 1989-04-11 | Altex Scientific, Inc. | Pressure measurement in fluid pump systems |
US4678914A (en) * | 1984-04-30 | 1987-07-07 | Environmental Tectonics Corporation | Digital IR gas analyzer |
US4836308A (en) * | 1988-04-04 | 1989-06-06 | General Electrodynamics Corporation | Highly accurate platform weighing system |
-
1994
- 1994-08-02 DE DE69435188T patent/DE69435188D1/de not_active Expired - Lifetime
- 1994-08-02 DK DK94925177T patent/DK0738405T3/da active
- 1994-08-02 AT AT94925177T patent/ATE423305T1/de not_active IP Right Cessation
- 1994-08-02 EP EP94925177A patent/EP0738405B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69435188D1 (de) | 2009-04-02 |
EP0738405B1 (en) | 2009-02-18 |
EP0738405A4 (en) | 1998-12-30 |
ATE423305T1 (de) | 2009-03-15 |
EP0738405A1 (en) | 1996-10-23 |
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