JP2019184523A - ガス分析装置 - Google Patents
ガス分析装置 Download PDFInfo
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- JP2019184523A JP2019184523A JP2018078486A JP2018078486A JP2019184523A JP 2019184523 A JP2019184523 A JP 2019184523A JP 2018078486 A JP2018078486 A JP 2018078486A JP 2018078486 A JP2018078486 A JP 2018078486A JP 2019184523 A JP2019184523 A JP 2019184523A
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- 238000005259 measurement Methods 0.000 claims abstract description 171
- 230000001678 irradiating effect Effects 0.000 claims abstract description 3
- 230000003287 optical effect Effects 0.000 claims description 71
- 239000000523 sample Substances 0.000 claims description 65
- 238000004458 analytical method Methods 0.000 abstract description 22
- 239000007789 gas Substances 0.000 description 115
- 238000000034 method Methods 0.000 description 8
- 238000000862 absorption spectrum Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000000041 tunable diode laser absorption spectroscopy Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
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- 238000002485 combustion reaction Methods 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- 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
- 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
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
-
- 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
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/021—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using plane or convex mirrors, parallel phase plates, or particular reflectors
-
- 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
- G01N21/39—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
- 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
- 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
- G01J2003/421—Single beam
-
- 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
- G01N21/84—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
-
- 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
- G01N2201/02—Mechanical
- G01N2201/023—Controlling conditions in casing
- G01N2201/0236—Explosion proof
-
- 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
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
- G01N2201/06113—Coherent sources; lasers
- G01N2201/0612—Laser diodes
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
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
20 分析部
21 発光部
21a 圧電素子
21b レーザアーム
21c レーザホルダ
21d 発光素子
21e プランジャー
22 受光部
23 演算部
24 調整部
24a 光学レンズ
24b 調整機構
24c 調整ねじ
25 固定部
A 光軸
fn 固有振動数
G 被測定ガス
L1 出射光
L2 反射光
P 煙道
R1 測定領域
R2、R3 領域
S 煙道壁
W ビーム径
Claims (7)
- 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た前記測定光を反射させる反射部と、
前記反射部で反射した前記測定光を受光する受光部と、
前記反射部における前記測定光のビーム径を、前記測定光が平行光であるときのビーム径よりも拡大する調整部と、
を備える、
ガス分析装置。 - 前記調整部は、前記測定光の光軸と略直交する方向に沿った前記反射部の幅よりも大きくなるように前記測定光のビーム径を拡大する、
請求項1に記載のガス分析装置。 - 前記調整部は、前記発光部と前記測定領域との間に配置され、前記測定光に対して作用する光学レンズを有する、
請求項1又は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、前記発光部と対向し、
前記平凸レンズの凸面は、前記測定領域と対向する、
請求項3に記載のガス分析装置。 - 前記調整部は、前記測定光の光軸に沿って前記光学レンズと前記発光部との距離を変化させる調整機構をさらに有する、
請求項3又は4に記載のガス分析装置。 - 前記調整機構は、前記光学レンズが固定されている固定部によって前記光軸と略平行な軸まわりに回転可能に支持される調整ねじを有し、
該調整ねじの一方の先端は前記発光部と接触し、他方の先端は前記固定部から前記発光部と反対側に露出する、
請求項5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をさらに備え、
前記反射部は、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する、
請求項1乃至6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 |
---|---|---|---|
JP2018078486A JP2019184523A (ja) | 2018-04-16 | 2018-04-16 | ガス分析装置 |
EP19168056.0A EP3557229B1 (en) | 2018-04-16 | 2019-04-09 | Gas analyzer |
CN201910287426.2A CN110389109B (zh) | 2018-04-16 | 2019-04-11 | 气体分析装置 |
US16/385,870 US10871398B2 (en) | 2018-04-16 | 2019-04-16 | Gas analyzer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018078486A JP2019184523A (ja) | 2018-04-16 | 2018-04-16 | ガス分析装置 |
Publications (1)
Publication Number | Publication Date |
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JP2019184523A true JP2019184523A (ja) | 2019-10-24 |
Family
ID=66102924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2018078486A Pending JP2019184523A (ja) | 2018-04-16 | 2018-04-16 | ガス分析装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10871398B2 (ja) |
EP (1) | EP3557229B1 (ja) |
JP (1) | JP2019184523A (ja) |
CN (1) | CN110389109B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022155108A (ja) * | 2021-03-30 | 2022-10-13 | 横河電機株式会社 | ガス分析計 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10788420B2 (en) * | 2018-04-25 | 2020-09-29 | Yokogawa Electric Corporation | Gas analyzer |
JPWO2020196442A1 (ja) * | 2019-03-28 | 2020-10-01 | ||
GB2593195B (en) * | 2020-03-18 | 2023-02-22 | Thermo Fisher Scient Ecublens Sarl | Multipass cell |
JP2022078595A (ja) * | 2020-11-13 | 2022-05-25 | 日本ピラー工業株式会社 | 液体センサ |
Citations (5)
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JPH08145883A (ja) * | 1994-11-18 | 1996-06-07 | Riken Keiki Co Ltd | 光ビーム式ガス濃度測定装置 |
US20130063729A1 (en) * | 2010-04-30 | 2013-03-14 | Hamamatsu Photonics K.K. | Observation device |
JP2017129594A (ja) * | 2011-08-12 | 2017-07-27 | 株式会社堀場製作所 | ガス分析装置 |
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 |
JP2017211357A (ja) * | 2015-12-03 | 2017-11-30 | 富士電機株式会社 | レーザ式ガス分析装置 |
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2018
- 2018-04-16 JP JP2018078486A patent/JP2019184523A/ja active Pending
-
2019
- 2019-04-09 EP EP19168056.0A patent/EP3557229B1/en active Active
- 2019-04-11 CN CN201910287426.2A patent/CN110389109B/zh active Active
- 2019-04-16 US US16/385,870 patent/US10871398B2/en active Active
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JPH08145883A (ja) * | 1994-11-18 | 1996-06-07 | Riken Keiki Co Ltd | 光ビーム式ガス濃度測定装置 |
US20130063729A1 (en) * | 2010-04-30 | 2013-03-14 | Hamamatsu Photonics K.K. | Observation device |
JP2017129594A (ja) * | 2011-08-12 | 2017-07-27 | 株式会社堀場製作所 | ガス分析装置 |
JP2017211357A (ja) * | 2015-12-03 | 2017-11-30 | 富士電機株式会社 | レーザ式ガス分析装置 |
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Cited By (2)
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JP2022155108A (ja) * | 2021-03-30 | 2022-10-13 | 横河電機株式会社 | ガス分析計 |
JP7298640B2 (ja) | 2021-03-30 | 2023-06-27 | 横河電機株式会社 | ガス分析計 |
Also Published As
Publication number | Publication date |
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US20190316965A1 (en) | 2019-10-17 |
CN110389109B (zh) | 2022-07-08 |
EP3557229A1 (en) | 2019-10-23 |
US10871398B2 (en) | 2020-12-22 |
CN110389109A (zh) | 2019-10-29 |
EP3557229B1 (en) | 2022-01-19 |
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