FR2704651B1 - Détecteur de gaz à diode laser. - Google Patents
Détecteur de gaz à diode laser.Info
- Publication number
- FR2704651B1 FR2704651B1 FR9304961A FR9304961A FR2704651B1 FR 2704651 B1 FR2704651 B1 FR 2704651B1 FR 9304961 A FR9304961 A FR 9304961A FR 9304961 A FR9304961 A FR 9304961A FR 2704651 B1 FR2704651 B1 FR 2704651B1
- Authority
- FR
- France
- Prior art keywords
- laser diode
- gas detector
- diode gas
- detector
- laser
- 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 - Fee Related
Links
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
- G01N21/39—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
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0047—Specially adapted to detect a particular component for organic compounds
-
- 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
- G01N2021/396—Type of laser source
- G01N2021/399—Diode laser
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9304961A FR2704651B1 (fr) | 1993-04-27 | 1993-04-27 | Détecteur de gaz à diode laser. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9304961A FR2704651B1 (fr) | 1993-04-27 | 1993-04-27 | Détecteur de gaz à diode laser. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2704651A1 FR2704651A1 (fr) | 1994-11-04 |
FR2704651B1 true FR2704651B1 (fr) | 1995-06-02 |
Family
ID=9446487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9304961A Expired - Fee Related FR2704651B1 (fr) | 1993-04-27 | 1993-04-27 | Détecteur de gaz à diode laser. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2704651B1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7061618B2 (en) * | 2003-10-17 | 2006-06-13 | Axsun Technologies, Inc. | Integrated spectroscopy system |
US8526472B2 (en) | 2009-09-03 | 2013-09-03 | Axsun Technologies, Inc. | ASE swept source with self-tracking filter for OCT medical imaging |
US8670129B2 (en) | 2009-09-03 | 2014-03-11 | Axsun Technologies, Inc. | Filtered ASE swept source for OCT medical imaging |
CN102621063B (zh) * | 2012-03-05 | 2013-11-13 | 哈尔滨工业大学 | 基于多孔材料气体池的小型氧气测量装置 |
EP3642576B1 (fr) | 2017-06-21 | 2022-04-27 | Carrier Corporation | Détecteur de gaz dangereux à caméra à réseau 1d |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4457162A (en) * | 1982-09-17 | 1984-07-03 | Institute Of Gas Technology | Multi-frequency photo-acoustic detector |
DE3508027A1 (de) * | 1985-03-07 | 1986-09-11 | Franz-Rudolf Dipl.-Phys. Dr. 5106 Roetgen Block | Verfahren und einrichtung zum ermitteln der konzentration oder der massenanteile bestimmter gase in gasmischungen |
GB2215039B (en) * | 1988-02-10 | 1992-02-05 | Plessey Co Plc | Improvements relating to optical sensing arrangements |
EP0364642A1 (fr) * | 1988-09-22 | 1990-04-25 | The Victoria University Of Manchester | Méthode et appareil de détection de gaz |
US5026991A (en) * | 1989-09-20 | 1991-06-25 | Spectral Sciences, Inc. | Gaseous species absorption monitor |
-
1993
- 1993-04-27 FR FR9304961A patent/FR2704651B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2704651A1 (fr) | 1994-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |