ES2191966T3 - Deteccion optica de gases. - Google Patents
Deteccion optica de gases.Info
- Publication number
- ES2191966T3 ES2191966T3 ES98946564T ES98946564T ES2191966T3 ES 2191966 T3 ES2191966 T3 ES 2191966T3 ES 98946564 T ES98946564 T ES 98946564T ES 98946564 T ES98946564 T ES 98946564T ES 2191966 T3 ES2191966 T3 ES 2191966T3
- Authority
- ES
- Spain
- Prior art keywords
- infrared
- sensor
- radiation
- intensity
- target 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
- 230000005855 radiation Effects 0.000 abstract 4
- 230000002745 absorbent Effects 0.000 abstract 2
- 239000002250 absorbent Substances 0.000 abstract 2
- 150000001335 aliphatic alkanes Chemical class 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
- G01N21/31—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
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
-
- 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
-
- 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
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)
Abstract
Detector de gas por infrarrojos para controlar la presencia de un gas diana de un alcano C1-7, del tipo que comprende: - una fuente de luz infrarroja (10) capaz de transmitir al menos un haz de luz infrarroja (14) que comprende una banda de longitud de onda de muestra en la cual el gas diana es absorbente y al menos dos bandas de longitud de onda de referencia en las cuales el gas diana solo es absorbente en un menor grado que en la banda de longitud de onda de muestra; - un primer sensor de la intensidad de radiación (20) capaz de detectar la intensidad de la radiación infrarroja en la banda de longitud de onda de muestra y un segundo sensor de la intensidad de radiación (18) capaz de detectar la intensidad de la radiación infrarroja en las bandas de longitud de onda de referencia, cuyos sensores están separados del transmisor mediante un divisor del haz (16); y - un primer filtro que está situado frente al primer sensor y un segundo filtro de doble paso de banda situado frente al segundosensor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9721608.9A GB9721608D0 (en) | 1997-10-10 | 1997-10-10 | Optical gas detection |
GBGB9721609.7A GB9721609D0 (en) | 1997-10-10 | 1997-10-10 | Optical gas detection |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2191966T3 true ES2191966T3 (es) | 2003-09-16 |
Family
ID=26312417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES98946564T Expired - Lifetime ES2191966T3 (es) | 1997-10-10 | 1998-10-06 | Deteccion optica de gases. |
Country Status (6)
Country | Link |
---|---|
US (1) | US6455854B1 (es) |
EP (1) | EP1019702B1 (es) |
DE (1) | DE69811098T2 (es) |
DK (1) | DK1019702T3 (es) |
ES (1) | ES2191966T3 (es) |
WO (1) | WO1999019712A1 (es) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9917152D0 (en) * | 1999-07-21 | 1999-09-22 | Zellweger Analytics Ltd | Calorific natural gas detector |
WO2001094916A1 (en) * | 2000-06-02 | 2001-12-13 | Lattice Intellectual Property Ltd. | Non-dispersive ir measurement of gases using an optical filter |
WO2003067227A1 (en) * | 2002-02-05 | 2003-08-14 | Detector Electronics Corporation | Method and apparatus for open-path gas detection |
EP1639332A2 (en) | 2003-06-11 | 2006-03-29 | Furry Brothers, LLC | Systems and methods for performing inspections and detecting chemical leaks using an infrared camera system |
US7151787B2 (en) * | 2003-09-10 | 2006-12-19 | Sandia National Laboratories | Backscatter absorption gas imaging systems and light sources therefore |
US20050103869A1 (en) * | 2003-11-13 | 2005-05-19 | Eastman Kodak Company | Dual wavelength near infrared detector for enhanced indicia detection |
WO2005088275A1 (en) * | 2004-03-09 | 2005-09-22 | Senscient Limited | Gas detection |
US7375814B2 (en) * | 2005-03-11 | 2008-05-20 | Sandia Corporation | Natural gas leak mapper |
GB2449433B (en) | 2007-05-21 | 2009-12-09 | Clairair Ltd | Optical gas sensor |
US20090213381A1 (en) * | 2008-02-21 | 2009-08-27 | Dirk Appel | Analyzer system and optical filtering |
DE102010015084B4 (de) * | 2010-04-15 | 2020-12-10 | Schaeffler Technologies AG & Co. KG | Sensorteil für einen Infrarot-Sensor sowie Verfahren zu dessen Herstellung |
DE202011102765U1 (de) | 2011-07-02 | 2012-08-02 | Dräger Safety AG & Co. KGaA | Vorrichtung mit einer Messanordnung zur infrarot-optischen Messung von Gasen und Gasgemischen mit Kompensation von Umgebungseinflüssen |
US8785857B2 (en) | 2011-09-23 | 2014-07-22 | Msa Technology, Llc | Infrared sensor with multiple sources for gas measurement |
WO2014113287A1 (en) | 2013-01-17 | 2014-07-24 | Detector Electronics Corporation | Open path gas detector |
ITMI20130478A1 (it) | 2013-03-29 | 2014-09-30 | N E T Srl | Rilevatore ottico di gas a geometria variabile |
DE102014016515B4 (de) * | 2014-11-10 | 2021-04-29 | Dräger Safety AG & Co. KGaA | Optischer Gassensor |
TW201625923A (zh) * | 2015-01-02 | 2016-07-16 | 無限傳感有限公司 | 使用短波紅外技術之烴類氣體偵測 |
US10527497B2 (en) * | 2015-05-22 | 2020-01-07 | Irnova Ab | Infrared imaging detector |
CN108801967B (zh) * | 2018-06-21 | 2021-06-15 | 长春理工大学 | 双通带滤波器件、红外热成像探测系统及探测甲烷的方法 |
CN111157478A (zh) * | 2020-01-13 | 2020-05-15 | 西北工业大学 | 面向sf6气体泄漏的分光型红外成像监测装置及方法 |
US11143588B1 (en) | 2020-03-31 | 2021-10-12 | Msa Technology, Llc | Open path gas detector with synchronous flash detection |
US11480519B2 (en) | 2020-04-24 | 2022-10-25 | Honeywell International Inc. | Methods, apparatuses, and systems for improving gas detecting devices |
EP3904861B1 (en) * | 2020-04-27 | 2023-08-23 | ADVA Optical Networking SE | Apparatus and method for performing spectrometric measurements |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA967390A (en) | 1971-07-01 | 1975-05-13 | Environmental Data Corporation | Spectrometers |
GB2008745A (en) * | 1977-11-03 | 1979-06-06 | Anacon Instr Ltd | Spectrophotometer |
DE3334264A1 (de) * | 1982-09-25 | 1984-04-05 | Showa Denko K.K., Tokyo | Verfahren und messgeraet zum messen der methan-konzentration in einem gasgemisch |
NO156306C (no) | 1984-07-19 | 1987-09-02 | Elektrisk Bureau As | Infrar fiberoptisk gassdetektor. |
US5600142A (en) | 1995-05-26 | 1997-02-04 | Uop | Measurement of vaporized hydrogen peroxide |
US6061141A (en) | 1998-01-20 | 2000-05-09 | Spectronix Ltd. | Method and system for detecting gases or vapors in a monitored area |
-
1998
- 1998-10-06 DK DK98946564T patent/DK1019702T3/da active
- 1998-10-06 EP EP98946564A patent/EP1019702B1/en not_active Expired - Lifetime
- 1998-10-06 ES ES98946564T patent/ES2191966T3/es not_active Expired - Lifetime
- 1998-10-06 US US09/529,090 patent/US6455854B1/en not_active Expired - Lifetime
- 1998-10-06 DE DE69811098T patent/DE69811098T2/de not_active Expired - Lifetime
- 1998-10-06 WO PCT/GB1998/002991 patent/WO1999019712A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DK1019702T3 (da) | 2003-05-26 |
WO1999019712A1 (en) | 1999-04-22 |
EP1019702B1 (en) | 2003-01-29 |
DE69811098D1 (de) | 2003-03-06 |
US6455854B1 (en) | 2002-09-24 |
DE69811098T2 (de) | 2003-10-09 |
EP1019702A1 (en) | 2000-07-19 |
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