CN109596568B - 一种tdlas系统消除背景气误差的方法 - Google Patents
一种tdlas系统消除背景气误差的方法 Download PDFInfo
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- CN109596568B CN109596568B CN201811561483.7A CN201811561483A CN109596568B CN 109596568 B CN109596568 B CN 109596568B CN 201811561483 A CN201811561483 A CN 201811561483A CN 109596568 B CN109596568 B CN 109596568B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000000041 tunable diode laser absorption spectroscopy Methods 0.000 title claims abstract 7
- 230000003287 optical effect Effects 0.000 claims abstract description 73
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 238000010521 absorption reaction Methods 0.000 claims description 11
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- 238000005259 measurement Methods 0.000 abstract description 16
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 3
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- 239000007789 gas Substances 0.000 description 99
- 238000012545 processing Methods 0.000 description 6
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- 238000010586 diagram Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000001285 laser absorption spectroscopy Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 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
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
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- 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
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
- G01N2021/391—Intracavity sample
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- 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
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/121—Correction signals
- G01N2201/1215—Correction signals for interfering gases
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CN201811561483.7A CN109596568B (zh) | 2018-12-20 | 2018-12-20 | 一种tdlas系统消除背景气误差的方法 |
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CN110632015A (zh) * | 2019-11-07 | 2019-12-31 | 成都千嘉科技有限公司 | 可变光程式气体传感器 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5298751A (en) * | 1992-03-20 | 1994-03-29 | Aerojet-General Corporation | Remote active vapor concentration measurement system and method thereof |
CN2903972Y (zh) * | 2006-03-16 | 2007-05-23 | 北京航天益来电子科技有限公司 | 可变光程烟尘浓度测定仪 |
CN101393116A (zh) * | 2008-10-17 | 2009-03-25 | 天津理工大学 | 气体浓度检测仪的标定装置及线性度标定方法 |
CN201926623U (zh) * | 2010-12-14 | 2011-08-10 | 深圳市赛宝伦计算机技术有限公司 | 一种红外气体分析仪 |
CN103245614A (zh) * | 2013-05-14 | 2013-08-14 | 太原理工大学 | 一种智能红外甲烷气体检测装置 |
CN103616332A (zh) * | 2013-12-10 | 2014-03-05 | 山东大学 | 一种消除光电器件内部残余待测气体影响的气体检测系统 |
CN103698298A (zh) * | 2013-12-29 | 2014-04-02 | 哈尔滨工业大学 | 基于短腔腔增强关联光谱技术测量气体浓度的装置及采用该装置测量气体浓度的方法 |
CN106404705A (zh) * | 2016-12-15 | 2017-02-15 | 电子科技大学 | 一种高精度红外多气体检测装置 |
CN206740640U (zh) * | 2017-03-24 | 2017-12-12 | 江苏舒茨测控设备股份有限公司 | 准直和光程长度调节气体检测装置 |
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- 2018-12-20 CN CN201811561483.7A patent/CN109596568B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5298751A (en) * | 1992-03-20 | 1994-03-29 | Aerojet-General Corporation | Remote active vapor concentration measurement system and method thereof |
CN2903972Y (zh) * | 2006-03-16 | 2007-05-23 | 北京航天益来电子科技有限公司 | 可变光程烟尘浓度测定仪 |
CN101393116A (zh) * | 2008-10-17 | 2009-03-25 | 天津理工大学 | 气体浓度检测仪的标定装置及线性度标定方法 |
CN201926623U (zh) * | 2010-12-14 | 2011-08-10 | 深圳市赛宝伦计算机技术有限公司 | 一种红外气体分析仪 |
CN103245614A (zh) * | 2013-05-14 | 2013-08-14 | 太原理工大学 | 一种智能红外甲烷气体检测装置 |
CN103616332A (zh) * | 2013-12-10 | 2014-03-05 | 山东大学 | 一种消除光电器件内部残余待测气体影响的气体检测系统 |
CN103698298A (zh) * | 2013-12-29 | 2014-04-02 | 哈尔滨工业大学 | 基于短腔腔增强关联光谱技术测量气体浓度的装置及采用该装置测量气体浓度的方法 |
CN106404705A (zh) * | 2016-12-15 | 2017-02-15 | 电子科技大学 | 一种高精度红外多气体检测装置 |
CN206740640U (zh) * | 2017-03-24 | 2017-12-12 | 江苏舒茨测控设备股份有限公司 | 准直和光程长度调节气体检测装置 |
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Denomination of invention: A Method for Eliminating Background Gas Error in TDLAS System Effective date of registration: 20230519 Granted publication date: 20210924 Pledgee: CHINA ACADEMY OF AEROSPACE AERODYNAMICS Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980041196 |
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Address after: Building 24, 18th Courtyard, Kechuang 13th Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing, 100176 Patentee after: Beijing Aerospace Tianhong Intelligent Equipment Technology Co.,Ltd. Country or region after: China Address before: Building 24, yard 18, Kechuang 13th Street, Daxing Economic and Technological Development Zone, Beijing 100176 Patentee before: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Country or region before: China |
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Granted publication date: 20210924 Pledgee: CHINA ACADEMY OF AEROSPACE AERODYNAMICS Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980041196 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Method for Eliminating Background Gas Error in TDLAS System Granted publication date: 20210924 Pledgee: CHINA ACADEMY OF AEROSPACE AERODYNAMICS Pledgor: Beijing Aerospace Tianhong Intelligent Equipment Technology Co.,Ltd. Registration number: Y2024990000150 |