FR2494436A1 - Spectrometre utilisant un laser et un microphone - Google Patents
Spectrometre utilisant un laser et un microphone Download PDFInfo
- Publication number
- FR2494436A1 FR2494436A1 FR8024291A FR8024291A FR2494436A1 FR 2494436 A1 FR2494436 A1 FR 2494436A1 FR 8024291 A FR8024291 A FR 8024291A FR 8024291 A FR8024291 A FR 8024291A FR 2494436 A1 FR2494436 A1 FR 2494436A1
- Authority
- FR
- France
- Prior art keywords
- temperature
- gas
- chamber
- channel
- studied
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 title claims abstract description 18
- 230000033228 biological regulation Effects 0.000 title description 2
- 238000004611 spectroscopical analysis Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 230000005855 radiation Effects 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000003303 reheating Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000001228 spectrum Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 64
- 239000003507 refrigerant Substances 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000000737 periodic effect Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001307 laser spectroscopy Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000003466 welding Methods 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
- G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
Landscapes
- Physics & Mathematics (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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8024291A FR2494436A1 (fr) | 1980-11-14 | 1980-11-14 | Spectrometre utilisant un laser et un microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8024291A FR2494436A1 (fr) | 1980-11-14 | 1980-11-14 | Spectrometre utilisant un laser et un microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2494436A1 true FR2494436A1 (fr) | 1982-05-21 |
| FR2494436B1 FR2494436B1 (cg-RX-API-DMAC10.html) | 1983-01-21 |
Family
ID=9248003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8024291A Granted FR2494436A1 (fr) | 1980-11-14 | 1980-11-14 | Spectrometre utilisant un laser et un microphone |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2494436A1 (cg-RX-API-DMAC10.html) |
-
1980
- 1980-11-14 FR FR8024291A patent/FR2494436A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2494436B1 (cg-RX-API-DMAC10.html) | 1983-01-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |