EP3994447A4 - Gas analyzer - Google Patents
Gas analyzer Download PDFInfo
- Publication number
- EP3994447A4 EP3994447A4 EP19942772.5A EP19942772A EP3994447A4 EP 3994447 A4 EP3994447 A4 EP 3994447A4 EP 19942772 A EP19942772 A EP 19942772A EP 3994447 A4 EP3994447 A4 EP 3994447A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas analyzer
- analyzer
- 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.)
- Pending
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
- G01N21/276—Calibration, base line adjustment, drift correction with alternation of sample and standard in optical path
-
- 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
- G01N21/25—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
- G01N2021/3509—Correlation method, e.g. one beam alternating in correlator/sample field
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/102333 WO2021035432A1 (en) | 2019-08-23 | 2019-08-23 | Gas analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3994447A1 EP3994447A1 (en) | 2022-05-11 |
| EP3994447A4 true EP3994447A4 (en) | 2023-04-19 |
Family
ID=74684850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19942772.5A Pending EP3994447A4 (en) | 2019-08-23 | 2019-08-23 | Gas analyzer |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3994447A4 (en) |
| CN (1) | CN113767274A (en) |
| WO (1) | WO2021035432A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19911260A1 (en) * | 1999-03-13 | 2000-09-14 | Leybold Vakuum Gmbh | Infrared gas analyzer and method for operating this analyzer |
| US20050012925A1 (en) * | 2003-05-09 | 2005-01-20 | Saptari Vidi A. | Spectroscopic systems and methods |
| US20090168064A1 (en) * | 2006-04-07 | 2009-07-02 | Emerson Process Management Gmbh & Co Ohg | Method and apparatus for measuring the optical absorption of samples |
| DE102012216210A1 (en) * | 2012-09-12 | 2014-01-30 | Siemens Aktiengesellschaft | Non-dispersive infrared gas analyzer for analyzing zero gas, has control unit for controlling motor, such that duration and phase position of radiation through cuvettes are set by rotation angle-dependent control of angular velocity |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3731092A (en) * | 1971-11-11 | 1973-05-01 | Mine Safety Appliances Co | Non-dispersive infrared gas analyzer having sample and reference beams using flow sensitive detector and with unbalanced operation |
| CN2218928Y (en) * | 1994-08-30 | 1996-01-31 | 电力工业部南京电力环境保护科学研究所 | On-line monitoring instrument for gas turbid and dust concentration |
| US7239594B2 (en) * | 2003-02-07 | 2007-07-03 | Imation Corp. | Self-referenced holography using element formed on a holographic medium |
| CN100504357C (en) * | 2004-07-07 | 2009-06-24 | 深圳迈瑞生物医疗电子股份有限公司 | Method and apparatus for measuring gas concentration based on machinery modulation |
| CN101526400B (en) * | 2008-03-06 | 2010-11-03 | 中国科学院西安光学精密机械研究所 | Hadamard transform interference spectrum imaging method and device |
| US20130001412A1 (en) * | 2011-07-01 | 2013-01-03 | Mitutoyo Corporation | Optical encoder including passive readhead with remote contactless excitation and signal sensing |
| US9030663B2 (en) * | 2011-10-31 | 2015-05-12 | Exelis Inc. | Remote absorption spectroscopy by coded transmission |
| CN103499545B (en) * | 2013-10-14 | 2015-09-09 | 北京信息科技大学 | Adopt the semiconductor laser gas detecting system of gas reference chamber feedback compensation |
| CN104639281A (en) * | 2013-11-12 | 2015-05-20 | 华为技术有限公司 | Method, device and system for data transmission control |
| JP2015230989A (en) * | 2014-06-05 | 2015-12-21 | 株式会社リコー | Imaging module and imaging device |
| CN104764693B (en) * | 2015-04-09 | 2018-01-05 | 重庆工商大学 | Portable infrared gas analyzer and calibration method with automatic range calibration |
| US10481092B2 (en) * | 2015-07-21 | 2019-11-19 | Queen's University At Kingston | Multiplexed excitation emission matrix spectroscopy |
| CN106352904A (en) * | 2016-09-19 | 2017-01-25 | 上海未来伙伴机器人有限公司 | Photoelectric encoder coded disc, photoelectric detection device, photoelectric encoder and robot |
| CN106596434B (en) * | 2016-12-26 | 2020-01-03 | 高安水务有限公司 | Water quality detection system |
| CN106691394B (en) * | 2017-02-17 | 2023-04-18 | 浙江大学 | High-resolution long-focal-depth OCT imaging system and method based on optical path coding |
| CN107389585B (en) * | 2017-08-21 | 2019-11-15 | 湖北锐意自控系统有限公司 | A kind of gas analyzer and analysis method for gases |
-
2019
- 2019-08-23 CN CN201980096050.5A patent/CN113767274A/en active Pending
- 2019-08-23 EP EP19942772.5A patent/EP3994447A4/en active Pending
- 2019-08-23 WO PCT/CN2019/102333 patent/WO2021035432A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19911260A1 (en) * | 1999-03-13 | 2000-09-14 | Leybold Vakuum Gmbh | Infrared gas analyzer and method for operating this analyzer |
| US20050012925A1 (en) * | 2003-05-09 | 2005-01-20 | Saptari Vidi A. | Spectroscopic systems and methods |
| US20090168064A1 (en) * | 2006-04-07 | 2009-07-02 | Emerson Process Management Gmbh & Co Ohg | Method and apparatus for measuring the optical absorption of samples |
| DE102012216210A1 (en) * | 2012-09-12 | 2014-01-30 | Siemens Aktiengesellschaft | Non-dispersive infrared gas analyzer for analyzing zero gas, has control unit for controlling motor, such that duration and phase position of radiation through cuvettes are set by rotation angle-dependent control of angular velocity |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2021035432A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113767274A (en) | 2021-12-07 |
| WO2021035432A1 (en) | 2021-03-04 |
| EP3994447A1 (en) | 2022-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20220204 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: G01N0021310000 Ipc: G01N0021270000 |
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| A4 | Supplementary search report drawn up and despatched |
Effective date: 20230321 |
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| RIC1 | Information provided on ipc code assigned before grant |
Ipc: G01N 21/3504 20140101ALI20230315BHEP Ipc: G01N 21/27 20060101AFI20230315BHEP |