JP6769454B2 - ガス分析装置 - Google Patents
ガス分析装置 Download PDFInfo
- Publication number
- JP6769454B2 JP6769454B2 JP2018078474A JP2018078474A JP6769454B2 JP 6769454 B2 JP6769454 B2 JP 6769454B2 JP 2018078474 A JP2018078474 A JP 2018078474A JP 2018078474 A JP2018078474 A JP 2018078474A JP 6769454 B2 JP6769454 B2 JP 6769454B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- unit
- measurement
- gas
- light receiving
- 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.)
- Active
Links
- 238000005259 measurement Methods 0.000 claims description 98
- 230000003287 optical effect Effects 0.000 claims description 90
- 239000000523 sample Substances 0.000 claims description 35
- 230000007246 mechanism Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 description 114
- 238000004458 analytical method Methods 0.000 description 36
- 238000000862 absorption spectrum Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 9
- 238000000041 tunable diode laser absorption spectroscopy Methods 0.000 description 6
- 238000010926 purge Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
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
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
-
- 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
-
- 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
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
- H01S5/0071—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for beam steering, e.g. using a mirror outside the cavity to change the beam direction
-
- 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
- G01J2003/423—Spectral arrangements using lasers, e.g. tunable
-
- 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
- G01N2021/3196—Correlating located peaks in spectrum with reference data, e.g. fingerprint data
-
- 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
- G01N2021/396—Type of laser source
- G01N2021/399—Diode laser
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
- G01N2021/8514—Probe photometers, i.e. with optical measuring part dipped into fluid sample with immersed mirror
- G01N2021/8521—Probe photometers, i.e. with optical measuring part dipped into fluid sample with immersed mirror with a combination mirror cell-cuvette
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N2021/8578—Gaseous flow
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
前記光学部品は、前記第2受光部における前記参照光のビーム径を、前記第2受光部の受光径よりも拡大する。
10 プローブ部
11 フランジ
12 開口
13 リブ
14 切欠き
15 反射部(第2反射部)
20 分析部
21 発光部
21a 光学レンズ
22 第1受光部
23 演算部
24 分岐部
25 参照部
25a 集光レンズ
26 第2受光部
27 反射部(第1反射部)
28 光学部品
F 焦点
G 被測定ガス
L1 出射光
L2 反射光
L3 測定光
L4 参照光
P 煙道
R1 測定領域
R2、R3、R4 領域
S 煙道壁
Claims (6)
- 被測定ガスを含む測定領域に測定光を照射する発光部と、
前記発光部から照射される前記測定光の出射位置を調整する調整機構と、
前記測定領域を通過した前記測定光を受光する第1受光部と、
前記発光部と前記測定領域との間に配置され、前記発光部から照射された前記測定光の一部を参照光として分岐させる分岐部と、
前記被測定ガス中の測定対象成分と同一で既知濃度のガスを含み、前記ガスが含まれる領域を通過した前記参照光を受光する第2受光部を有する参照部と、
前記分岐部と前記ガスが含まれる領域との間に配置されている光学部品と、
を備え、
前記光学部品の焦点距離は、前記調整機構により前記測定光の光軸と直交する方向の前記測定光の出射位置が調整される調整範囲にわたって前記第2受光部が前記参照光を受光可能であり、かつ前記参照光の照射強度が最も大きくなるような値に設定され、
前記光学部品は、前記第2受光部における前記参照光のビーム径を、前記第2受光部の受光径よりも拡大する、
ガス分析装置。 - 前記光学部品は、前記参照光に対して作用する光学レンズを含む、
請求項1に記載のガス分析装置。 - 前記光学レンズは、前記ガス分析装置が前記光学部品を備えない場合と比較して、前記参照部における前記参照光の焦点をより前記光学レンズ側に位置させる、
請求項2に記載のガス分析装置。 - 前記光学レンズは、平凸レンズであり、
前記平凸レンズの平面は、前記参照部と対向し、
前記平凸レンズの凸面は、前記参照部と反対側を向く、
請求項3に記載のガス分析装置。 - 前記分岐部と前記光学部品との間に配置され、前記分岐部によって分岐された前記参照光を前記発光部側に反射させる第1反射部をさらに備える、
請求項1乃至4のいずれか1項に記載のガス分析装置。 - 前記測定光の光軸に沿って前記測定領域と重畳するように延在するプローブ部と、
前記プローブ部において前記発光部と反対側の先端に位置し、前記測定光を反射させる第2反射部と、
をさらに備え、
前記第1受光部は、前記第2反射部で反射した前記測定光を受光する、
請求項1乃至5のいずれか1項に記載のガス分析装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018078474A JP6769454B2 (ja) | 2018-04-16 | 2018-04-16 | ガス分析装置 |
CN201910266635.9A CN110389102B (zh) | 2018-04-16 | 2019-04-03 | 气体分析装置 |
EP19166965.4A EP3557228B1 (en) | 2018-04-16 | 2019-04-03 | Gas analyzer |
US16/376,765 US10908082B2 (en) | 2018-04-16 | 2019-04-05 | Gas analyzer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018078474A JP6769454B2 (ja) | 2018-04-16 | 2018-04-16 | ガス分析装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019184522A JP2019184522A (ja) | 2019-10-24 |
JP6769454B2 true JP6769454B2 (ja) | 2020-10-14 |
Family
ID=66092018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018078474A Active JP6769454B2 (ja) | 2018-04-16 | 2018-04-16 | ガス分析装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10908082B2 (ja) |
EP (1) | EP3557228B1 (ja) |
JP (1) | JP6769454B2 (ja) |
CN (1) | CN110389102B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10788420B2 (en) * | 2018-04-25 | 2020-09-29 | Yokogawa Electric Corporation | Gas analyzer |
US11047736B2 (en) * | 2018-06-19 | 2021-06-29 | The University Of Chicago | Optics to reduce skew in integrated cavity output spectroscopic devices |
US20230056282A1 (en) * | 2021-08-19 | 2023-02-23 | Rosemount Inc. | Open path gas detector based on spectrometer |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8609619D0 (en) * | 1986-04-19 | 1986-05-21 | Procal Analytics | Gas analysis |
EP1508794B1 (en) * | 2003-08-18 | 2019-05-01 | Halliburton Energy Services, Inc. | Method and apparatus for performing rapid isotopic analysis via laser spectroscopy |
JP2009115711A (ja) * | 2007-11-08 | 2009-05-28 | Toray Eng Co Ltd | 基板処理装置 |
CN101285769B (zh) * | 2008-05-21 | 2012-03-21 | 聚光科技(杭州)股份有限公司 | 一种气体测量方法及其装置 |
CN101413881A (zh) * | 2008-11-27 | 2009-04-22 | 浙江大学 | 光纤光栅可调谐滤波特性的气体浓度的测量系统 |
JP5349996B2 (ja) * | 2009-02-10 | 2013-11-20 | 一般財団法人電力中央研究所 | ガス濃度測定装置 |
US8395777B2 (en) * | 2010-09-09 | 2013-03-12 | Adelphi University | Method and apparatus for trace gas detection using integrated wavelength modulated spectra across multiple lines |
EP2711688B1 (en) * | 2011-05-20 | 2020-09-02 | HORIBA, Ltd. | Measuring unit and gas analyzing apparatus |
EP3644043B1 (en) * | 2011-12-27 | 2023-10-18 | HORIBA, Ltd. | Gas analyzing apparatus |
DE102012007561B4 (de) * | 2012-04-14 | 2014-07-10 | Dräger Safety AG & Co. KGaA | Gasdetektorsystem |
US20150276587A1 (en) * | 2013-06-17 | 2015-10-01 | Alan Cowie | Method and apparatus for two point calibration of a tunable diode laser analyzer |
CN103499545B (zh) * | 2013-10-14 | 2015-09-09 | 北京信息科技大学 | 采用气体参考腔反馈补偿的半导体激光器气体检测系统 |
CN104215606B (zh) * | 2014-09-18 | 2016-11-30 | 清华大学 | 基于波长调制光谱技术的脱硝氨逃逸率测量装置及方法 |
CN104483284A (zh) * | 2014-12-31 | 2015-04-01 | 苏州奥德克光电有限公司 | 一种烟气监测仪的光学系统及检测装置 |
JP2017129374A (ja) * | 2016-01-18 | 2017-07-27 | 株式会社堀場製作所 | 分析装置、及び、分析方法 |
JP2017142346A (ja) * | 2016-02-09 | 2017-08-17 | 西進商事株式会社 | 照明装置及び光学測定装置 |
CN107764774B (zh) * | 2017-11-06 | 2023-05-23 | 浙江大学 | 一种同时测量烟气脱硝中一氧化氮和氨气的装置及方法 |
-
2018
- 2018-04-16 JP JP2018078474A patent/JP6769454B2/ja active Active
-
2019
- 2019-04-03 EP EP19166965.4A patent/EP3557228B1/en active Active
- 2019-04-03 CN CN201910266635.9A patent/CN110389102B/zh active Active
- 2019-04-05 US US16/376,765 patent/US10908082B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2019184522A (ja) | 2019-10-24 |
CN110389102B (zh) | 2022-05-03 |
US10908082B2 (en) | 2021-02-02 |
EP3557228A1 (en) | 2019-10-23 |
EP3557228B1 (en) | 2020-09-16 |
CN110389102A (zh) | 2019-10-29 |
US20190317018A1 (en) | 2019-10-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107991250B (zh) | 测量单元及气体分析装置 | |
US10871398B2 (en) | Gas analyzer | |
JP6769454B2 (ja) | ガス分析装置 | |
JP6416453B2 (ja) | ガス分析装置 | |
US10788415B2 (en) | Analysis device | |
JP2736171B2 (ja) | フォトサーマルセンサ | |
WO2009119790A1 (ja) | 光分析計及び分析計用波長安定化レーザ装置 | |
JP7192583B2 (ja) | ガス分析装置 | |
JP2014182106A (ja) | 温度計 | |
US20140049774A1 (en) | Dew condensation detection method and device | |
JP6183227B2 (ja) | 挿入型ガス濃度測定装置 | |
ES2978087T3 (es) | Dispositivo para el analisis de gases utilizando la espectroscopia raman | |
EP3561457B1 (en) | Measurement apparatus | |
CN111157470A (zh) | 一种多激光器同时在线测量多组分气体含量的方法 | |
JP2010210543A (ja) | センサーユニット、テラヘルツ分光測定装置およびテラヘルツ分光測定方法 | |
JP5188858B2 (ja) | 光分析装置 | |
JP5001226B2 (ja) | 光熱変換測定装置及び方法 | |
JP7033777B2 (ja) | 光学式センサチップ及び光学式ガスセンサ | |
JP2009063311A (ja) | ガス検知装置 | |
JP7158004B2 (ja) | ガス濃度測定装置およびガス濃度連続測定方法 | |
US20150015878A1 (en) | Raman spectroscopic analyzing apparatus | |
KR20230079370A (ko) | 연소 구역 화학 감지 시스템 및 연관된 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190410 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200227 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200310 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200423 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200825 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200907 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6769454 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |