JP6657059B2 - 多重反射型セル、分析装置、排ガス分析装置、及び、光の入射方法 - Google Patents
多重反射型セル、分析装置、排ガス分析装置、及び、光の入射方法 Download PDFInfo
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- JP6657059B2 JP6657059B2 JP2016231230A JP2016231230A JP6657059B2 JP 6657059 B2 JP6657059 B2 JP 6657059B2 JP 2016231230 A JP2016231230 A JP 2016231230A JP 2016231230 A JP2016231230 A JP 2016231230A JP 6657059 B2 JP6657059 B2 JP 6657059B2
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- 238000000034 method Methods 0.000 title claims description 9
- 230000007246 mechanism Effects 0.000 claims description 96
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- 230000003287 optical effect Effects 0.000 claims description 28
- 210000005056 cell body Anatomy 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 14
- 239000007789 gas Substances 0.000 description 32
- 238000004458 analytical method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 description 2
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- 229910016036 BaF 2 Inorganic materials 0.000 description 1
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 description 1
- 229910001632 barium fluoride Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 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
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/004—Systems comprising a plurality of reflections between two or more surfaces, e.g. cells, resonators
-
- 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
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
- G01J1/0422—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using light concentrators, collectors or condensers
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/031—Multipass arrangements
-
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/02—Catoptric systems, e.g. image erecting and reversing system
- G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
- G02B17/0626—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using three curved mirrors
- G02B17/0636—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using three curved mirrors off-axis or unobscured systems in which all of the mirrors share a common axis of rotational symmetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
- G01M15/108—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases using optical methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2252—Sampling from a flowing stream of gas in a vehicle exhaust
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
-
- 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
- G01N2021/3595—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using FTIR
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- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Description
100・・・多重反射型セル
11 ・・・セル本体
MR ・・・多重反射機構
12 ・・・フィールドミラー
13 ・・・第1対物ミラー
14 ・・・第2対物ミラー
IP ・・・光入射口
OP ・・・光射出口
SP ・・・対称面
Claims (12)
- 内部に測定対象ガスが導入されるセル本体と、前記セル本体内に設けられ、入射した光を多重反射した後に外部へ射出する多重反射機構とを備えた多重反射型セルであって、
前記多重反射機構が、
フィールドミラーと、
前記フィールドミラーと対向するとともに前記多重反射機構における光の入射側に設けられた第1対物ミラーと、
前記フィールドミラーと対向するとともに前記多重反射機構における光の射出側に設けられた第2対物ミラーと、を具備し、
前記フィールドミラーと、前記第1対物ミラー及び前記第2対物ミラーとの間に前記測定対象ガスが導入されるように構成され、
前記多重反射機構に入射する光が最初に前記第2対物ミラーで反射されるように構成されていることを特徴とする多重反射型セル。 - 前記第1対物ミラー及び前記第2対物ミラーが、前記フィールドミラーの光軸を含む対称面に対して対称となるように配置されている請求項1記載の多重反射型セル。
- 前記第1対物ミラーの曲率中心が前記フィールドミラーの前記多重反射機構における光の射出側に設定されており、
前記第2対物ミラーの曲率中心が前記フィールドミラーの前記多重反射機構における光の入射側に設定されている請求項1又は2記載の多重反射型セル。 - 前記フィールドミラーが、前記多重反射機構の外部から光が入射する光入射口と、前記多重反射機構から外部へ光が射出される光射出口と、を備えた請求項1乃至3の何れか一項に記載の多重反射型セル。
- 前記フィールドミラーの反射面上に形成される複数の反射点の配置間隔が、反射面の中心部よりも外縁部のほうが大きくなるように構成されている請求項1乃至4の何れか一項に記載の多重反射型セル。
- 前記第1対物ミラーの反射面上に形成される複数の反射点の配列、及び、前記第2対物ミラーの反射面上に形成される複数の反射点の配列がそれぞれ放物線をなし、各放物線の頂点が前記多重反射機構の外側へ向くように構成されている請求項1乃至5の何れか一項に記載の多重反射型セル。
- 前記多重反射機構を収容するセル本体を備えており、
前記セル本体における前記フィールドミラー側に、外部から前記多重反射機構に光を入射させる入射窓及び前記多重反射機構から外部に光を射出させる出射窓が設けられており、
前記入射窓が、入射する光の光軸に対して面板部が直交するとともに、当該面板部が前記第2対物ミラー側を向いており、
前記出射窓が、入射する光の光軸に対して面板部が直交するとともに、当該面板部が前記第1対物ミラー側を向いている請求項1乃至6の何れか一項に記載の多重反射型セル。 - 前記セル本体における前記フィールドミラー側に、外部から前記多重反射機構に光を入射させる入射窓及び前記多重反射機構から外部に光を射出させる出射窓が設けられており、
前記入射窓及び前記出射窓の表面に反射防止膜が形成されている請求項1乃至6の何れか一項に記載の多重反射型セル。 - 最後に前記第1対物ミラーで反射された光が前記多重反射機構から外部へと射出されるように構成された請求項1乃至8の何れか一項に記載の多重反射型セル。
- 請求項1乃至9の何れか一項に記載の多重反射型セルを備えた分析装置。
- 請求項1乃至9の何れか一項に記載の多重反射型セルを備え、
前記測定対象ガスが排ガスである排ガス分析装置。 - 内部に測定対象ガスが導入されるセル本体と、前記セル本体内に設けられ、入射した光を多重反射した後に外部へ射出する多重反射機構とを備えた多重反射型セルへの光の入射方法であって、前記多重反射機構が、フィールドミラーと、前記フィールドミラーと対向するとともに前記多重反射機構における光の入射側に設けられた第1対物ミラーと、前記フィールドミラーと対向するとともに前記多重反射機構における光の射出側に設けられた第2対物ミラーと、を具備し、前記フィールドミラーと、前記第1対物ミラー及び前記第2対物ミラーとの間に前記測定対象ガスが導入されるように構成されており、
前記多重反射機構に入射する光が最初に前記第2対物ミラーで反射されるように光を前記多重反射機構へと入射させることを特徴とする光の入射方法。
Applications Claiming Priority (4)
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JP2015244552 | 2015-12-15 | ||
JP2015244552 | 2015-12-15 | ||
JP2016074621 | 2016-04-01 | ||
JP2016074621 | 2016-04-01 |
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JP2017187468A JP2017187468A (ja) | 2017-10-12 |
JP6657059B2 true JP6657059B2 (ja) | 2020-03-04 |
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Country | Link |
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US (1) | US9971133B2 (ja) |
EP (1) | EP3182094A1 (ja) |
JP (1) | JP6657059B2 (ja) |
CN (1) | CN107024442A (ja) |
Families Citing this family (11)
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CN109596524B (zh) * | 2017-10-03 | 2024-04-26 | 株式会社堀场制作所 | 多重反射池及其构成方法和气体分析装置 |
CN108801455A (zh) * | 2018-06-08 | 2018-11-13 | 徐州旭海光电科技有限公司 | 一种拉曼光信号激励和收集装置 |
CN109407310B (zh) * | 2018-12-09 | 2020-07-10 | 山西大学 | 一种多通池的设计方法 |
US11150130B2 (en) * | 2019-03-04 | 2021-10-19 | Si-Ware Systems | Compact multi-pass gas cell for multi-gas spectral sensors |
CN110849769B (zh) * | 2019-10-28 | 2022-07-29 | 北京空间机电研究所 | 一种基于可调谐激光的掩星大气密度廓线测量系统及方法 |
NO346237B1 (en) * | 2019-12-20 | 2022-05-02 | Tunable As | Cavity for gas measurements |
GB2593195B (en) * | 2020-03-18 | 2023-02-22 | Thermo Fisher Scient Ecublens Sarl | Multipass cell |
US11686670B2 (en) * | 2020-11-03 | 2023-06-27 | Yokogawa Electric Corporation | Isolation of fluid sample in multi-pass optical system |
US20240060881A1 (en) | 2021-03-12 | 2024-02-22 | Horiba Stec, Co., Ltd. | Gas analyzing device |
DE102021106362A1 (de) | 2021-03-16 | 2022-09-22 | SEGULA TECHNOLOGIES GmbH | Multipass-Zelle zur absorptionsspektroskopischen Analyse eines Gasstroms |
CN113484266B (zh) * | 2021-05-28 | 2023-01-17 | 汉威科技集团股份有限公司 | 一种光程倍增器件和光程倍增气体吸收池 |
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2016
- 2016-11-11 CN CN201611005510.3A patent/CN107024442A/zh active Pending
- 2016-11-21 EP EP16199836.4A patent/EP3182094A1/en not_active Withdrawn
- 2016-11-23 US US15/360,682 patent/US9971133B2/en not_active Expired - Fee Related
- 2016-11-29 JP JP2016231230A patent/JP6657059B2/ja active Active
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EP3182094A1 (en) | 2017-06-21 |
US9971133B2 (en) | 2018-05-15 |
JP2017187468A (ja) | 2017-10-12 |
US20170168275A1 (en) | 2017-06-15 |
CN107024442A (zh) | 2017-08-08 |
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