FR2434385A1 - Analyseur de gaz, non dispersif, a rayons infrarouges - Google Patents
Analyseur de gaz, non dispersif, a rayons infrarougesInfo
- Publication number
- FR2434385A1 FR2434385A1 FR7908000A FR7908000A FR2434385A1 FR 2434385 A1 FR2434385 A1 FR 2434385A1 FR 7908000 A FR7908000 A FR 7908000A FR 7908000 A FR7908000 A FR 7908000A FR 2434385 A1 FR2434385 A1 FR 2434385A1
- Authority
- FR
- France
- Prior art keywords
- determined
- radiation
- comparison
- gas
- cuvette
- 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.)
- Withdrawn
Links
- 238000010521 absorption reaction Methods 0.000 abstract 5
- 230000005855 radiation Effects 0.000 abstract 5
- 230000035699 permeability Effects 0.000 abstract 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
- G01N21/31—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
- G01N21/37—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using pneumatic detection
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)
Abstract
Analyseur de gaz, non dispersif, à rayons infrarouges, ayant un trajet I pour rayonnement à doser dans lequel se trouve une cuvette de mesure 4 remplie du gaz à doser et un trajet Il pour le rayonnement de comparaison dans lequel se trouve une cuvette de comparaison remplie d'un gaz de comparaison, ayant un dispositif de modulation pour les deux faisceaux de rayons et un dispositif récepteur de rayonnement ayant la capacité d'absorption du composant gazeux à doser, dans lequel on utilise comme mesure de la concentration du composant à doser la différence des amplitudes de signaux émis par le dispositif récepteur précité et correspondant aux deux faisceaux de rayons, et caractérisé en ce que pour réduire l'influence gênante de composants gazeux dont les bandes d'absorption chevauchent la bande d'absorption du composant à doser, on insère sur le trajet du rayonnement de comparaison, au lieu de la cuvette de comparaison, une cuvette 5 remplie du gaz à doser et de longueur plus faible que celle de la cuvette de mesure 4, et l'on place sur le trajet I pour le rayonnement à doser un filtre d'interférences il ayant une arête d'absorption dans la zone de chevauchement et une perméabilité dans le reste de la zone d'absorption du composant à doser.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782827345 DE2827345A1 (de) | 1978-06-22 | 1978-06-22 | Nichtdispersiver infrarot-gasanalysator |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2434385A1 true FR2434385A1 (fr) | 1980-03-21 |
Family
ID=6042421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7908000A Withdrawn FR2434385A1 (fr) | 1978-06-22 | 1979-03-30 | Analyseur de gaz, non dispersif, a rayons infrarouges |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS552998A (fr) |
DE (1) | DE2827345A1 (fr) |
FR (1) | FR2434385A1 (fr) |
GB (1) | GB2024417A (fr) |
NL (1) | NL7904593A (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4432939A (en) * | 1980-04-14 | 1984-02-21 | Fuji Electric Co., Ltd. | Ammonia gas analyzer |
JPS573698A (en) * | 1980-06-09 | 1982-01-09 | Mitsubishi Heavy Ind Ltd | Dry cleaning machine |
JPS5784100A (en) * | 1980-11-13 | 1982-05-26 | Mitsubishi Heavy Ind Ltd | Dry cleaning machine |
JPS5784099A (en) * | 1980-11-13 | 1982-05-26 | Mitsubishi Heavy Ind Ltd | Dry cleaning machine |
JPS5892843A (ja) * | 1981-11-26 | 1983-06-02 | Horiba Ltd | 二成分測定用非分散型赤外線分析計 |
JPH0696069B2 (ja) * | 1989-03-28 | 1994-11-30 | 三洋電機株式会社 | 洗濯機 |
CA2026844C (fr) * | 1989-10-05 | 1999-05-11 | Tadashi Nukaga | Lessiveuse mecanique a tambour |
JP2007154593A (ja) * | 2005-12-08 | 2007-06-21 | Asahi Kasei Construction Materials Co Ltd | 外装パネルの目地構造 |
-
1978
- 1978-06-22 DE DE19782827345 patent/DE2827345A1/de not_active Withdrawn
-
1979
- 1979-03-30 FR FR7908000A patent/FR2434385A1/fr not_active Withdrawn
- 1979-06-12 NL NL7904593A patent/NL7904593A/xx not_active Application Discontinuation
- 1979-06-19 GB GB7921315A patent/GB2024417A/en not_active Withdrawn
- 1979-06-22 JP JP7823479A patent/JPS552998A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2827345A1 (de) | 1980-01-10 |
NL7904593A (nl) | 1979-12-28 |
GB2024417A (en) | 1980-01-09 |
JPS552998A (en) | 1980-01-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |