JPH0220934B2 - - Google Patents
Info
- Publication number
- JPH0220934B2 JPH0220934B2 JP8677083A JP8677083A JPH0220934B2 JP H0220934 B2 JPH0220934 B2 JP H0220934B2 JP 8677083 A JP8677083 A JP 8677083A JP 8677083 A JP8677083 A JP 8677083A JP H0220934 B2 JPH0220934 B2 JP H0220934B2
- Authority
- JP
- Japan
- Prior art keywords
- methane gas
- light
- wavelength
- methane
- 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.)
- Expired - Lifetime
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 184
- 239000007789 gas Substances 0.000 claims description 116
- 238000010521 absorption reaction Methods 0.000 claims description 42
- 238000005259 measurement Methods 0.000 claims description 34
- 239000013307 optical fiber Substances 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000002452 interceptive effect Effects 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 19
- 230000003287 optical effect Effects 0.000 description 19
- 239000004215 Carbon black (E152) Substances 0.000 description 15
- 229930195733 hydrocarbon Natural products 0.000 description 15
- 150000002430 hydrocarbons Chemical class 0.000 description 15
- 239000010453 quartz Substances 0.000 description 7
- 230000008033 biological extinction Effects 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000006262 metallic foam Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- -1 propane Chemical compound 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
-
- 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
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
-
- 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
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58086770A JPS59212738A (ja) | 1983-05-18 | 1983-05-18 | メタンガス濃度測定法およびその測定装置 |
| DE19833334264 DE3334264A1 (de) | 1982-09-25 | 1983-09-22 | Verfahren und messgeraet zum messen der methan-konzentration in einem gasgemisch |
| US06/536,051 US4567366A (en) | 1982-09-25 | 1983-09-26 | Method and apparatus for measuring methane concentration in gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58086770A JPS59212738A (ja) | 1983-05-18 | 1983-05-18 | メタンガス濃度測定法およびその測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59212738A JPS59212738A (ja) | 1984-12-01 |
| JPH0220934B2 true JPH0220934B2 (enrdf_load_stackoverflow) | 1990-05-11 |
Family
ID=13895980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58086770A Granted JPS59212738A (ja) | 1982-09-25 | 1983-05-18 | メタンガス濃度測定法およびその測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59212738A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240102383A (ko) * | 2022-12-26 | 2024-07-03 | (주)파이버피아 | 레이저를 이용한 휴대용 가스 감지센서 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0830680B2 (ja) * | 1990-10-15 | 1996-03-27 | アンリツ株式会社 | ガス検出装置 |
| GB0002535D0 (en) | 2000-02-04 | 2000-03-29 | Bg Intellectual Pty Ltd | A method for determining the safety of gas mixtures |
| CN1432128A (zh) * | 2000-06-02 | 2003-07-23 | 拉蒂斯知识产权有限公司 | 采用滤光片的气体的非扩散性红外测定法 |
-
1983
- 1983-05-18 JP JP58086770A patent/JPS59212738A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240102383A (ko) * | 2022-12-26 | 2024-07-03 | (주)파이버피아 | 레이저를 이용한 휴대용 가스 감지센서 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59212738A (ja) | 1984-12-01 |
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