DE10345507A1 - Diodenlaser-Spektrometer - Google Patents
Diodenlaser-Spektrometer Download PDFInfo
- Publication number
- DE10345507A1 DE10345507A1 DE2003145507 DE10345507A DE10345507A1 DE 10345507 A1 DE10345507 A1 DE 10345507A1 DE 2003145507 DE2003145507 DE 2003145507 DE 10345507 A DE10345507 A DE 10345507A DE 10345507 A1 DE10345507 A1 DE 10345507A1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- laser diode
- measurement
- series arrangement
- reference signal
- 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.)
- Ceased
Links
- 238000005259 measurement Methods 0.000 title abstract 2
- 230000003287 optical effect Effects 0.000 title 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
- G01N21/3504—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
- G01N21/17—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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Die Erfindung betrifft ein Diodenlaser-Spektrometer mit einem Laserlicht erzeugenden Diodenlaser, einer Modulationseinrichtung zur wellenlängenabhängigen Modulation des Diodenlasers mittels eines Modulationssignals, einer ein Referenzgas enthaltenden und von dem Laserlicht durchstrahlten Referenzgasstrecke, einem der Referenzgasstrecke nachgeordneten und ein Referenzsignal erzeugenden Referenzdetektor, einer ein Messgas enthaltenden und von dem Laserlicht durchstrahlten Messgasstrecke und einem der Messgasstrecke nachgeordneten und ein Messsignal erzeugenden Messdetektor. DOLLAR A Um bei dem Diodenlaser-Spektrometer den gerätetechnischen Aufwand zu verringern, ist die Messgasstrecke (5) derart angeordnet, dass sie von dem aus der Referenzgasstrecke (4) austretenden Laserlicht (2) durchstrahlt wird und das Referenzsignal (11) des Referenzdetektors (10) über einen Rückkopplungszweig (12) im Sinne einer Gegenkopplung einem Steuereingang (13) der Modulationseinrichtung (3) zuführt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003145507 DE10345507A1 (de) | 2003-09-30 | 2003-09-30 | Diodenlaser-Spektrometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003145507 DE10345507A1 (de) | 2003-09-30 | 2003-09-30 | Diodenlaser-Spektrometer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10345507A1 true DE10345507A1 (de) | 2005-05-04 |
Family
ID=34399110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003145507 Ceased DE10345507A1 (de) | 2003-09-30 | 2003-09-30 | Diodenlaser-Spektrometer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10345507A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008145115A3 (de) * | 2007-05-25 | 2009-04-16 | Fraunhofer Ges Forschung | Vorrichtung und verfahren zur bestimmung der permeationsrate mindestens eines permeaten durch ein eine diffusionssperre bildendes element |
DE102009058394B3 (de) * | 2009-12-15 | 2011-02-10 | Siemens Aktiengesellschaft | Verfahren zur Messung der Konzentration mindestens einer Gaskomponente in einem Messgas |
DE102012202893B3 (de) * | 2012-02-27 | 2013-01-17 | Siemens Aktiengesellschaft | Verfahren zur Messung der Konzentration einer Gaskomponente in einem Messgas und Laserspektrometer |
CN104568837A (zh) * | 2011-11-28 | 2015-04-29 | 横河电机株式会社 | 激光气体分析仪 |
US10491160B2 (en) * | 2016-07-27 | 2019-11-26 | Siemens Aktiengesellschaft | Measuring device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4711118A (en) * | 1981-11-05 | 1987-12-08 | American Telephone And Telegraph Company, At&T Bell Laboratories | Detection of water entrapped in electronic components |
US4937448A (en) * | 1988-05-26 | 1990-06-26 | Spectra-Physics, Inc. | Self-normalizing single-beam laser spectrometer |
WO2004008113A1 (de) * | 2002-07-12 | 2004-01-22 | Abb Research Ltd | Absorptionsspektrometer und entsprechendes messverfahren |
-
2003
- 2003-09-30 DE DE2003145507 patent/DE10345507A1/de not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4711118A (en) * | 1981-11-05 | 1987-12-08 | American Telephone And Telegraph Company, At&T Bell Laboratories | Detection of water entrapped in electronic components |
US4937448A (en) * | 1988-05-26 | 1990-06-26 | Spectra-Physics, Inc. | Self-normalizing single-beam laser spectrometer |
WO2004008113A1 (de) * | 2002-07-12 | 2004-01-22 | Abb Research Ltd | Absorptionsspektrometer und entsprechendes messverfahren |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008145115A3 (de) * | 2007-05-25 | 2009-04-16 | Fraunhofer Ges Forschung | Vorrichtung und verfahren zur bestimmung der permeationsrate mindestens eines permeaten durch ein eine diffusionssperre bildendes element |
DE102009058394B3 (de) * | 2009-12-15 | 2011-02-10 | Siemens Aktiengesellschaft | Verfahren zur Messung der Konzentration mindestens einer Gaskomponente in einem Messgas |
US8830470B2 (en) | 2009-12-15 | 2014-09-09 | Siemens Aktiengesellschaft | Method for measuring the concentration of at least one gas component in a measuring gas |
CN104568837A (zh) * | 2011-11-28 | 2015-04-29 | 横河电机株式会社 | 激光气体分析仪 |
DE102012202893B3 (de) * | 2012-02-27 | 2013-01-17 | Siemens Aktiengesellschaft | Verfahren zur Messung der Konzentration einer Gaskomponente in einem Messgas und Laserspektrometer |
US9207169B2 (en) | 2012-02-27 | 2015-12-08 | Siemens Aktiengesellschaft | Laser spectrometer and method for measuring concentration of a gas component in a measurement gas |
US10491160B2 (en) * | 2016-07-27 | 2019-11-26 | Siemens Aktiengesellschaft | Measuring device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006022550A3 (en) | Gas monitor | |
ATE524056T1 (de) | Interferometervorrichtung und verfahren | |
MY137696A (en) | Test head for optically inspecting workpieces | |
WO2003021329A3 (en) | Solid-state light source | |
WO2007025525A3 (de) | Lichtemittierendes modul insbesondere zur verwendung in einem optischen projektionsgerät und optisches projektionsgerät | |
GB2390498B (en) | Detection instrument | |
HK1133091A1 (en) | Exposure apparatus | |
NO20050323D0 (no) | Spredlysroykvarsler | |
DE60209563D1 (de) | Laservorrichtung mit optischer rückkopplung zur detektion von spurengasen | |
ATE441101T1 (de) | Mobile ferndetektion von fluiden mittels laser | |
WO2008081757A1 (ja) | ガス検出方法及びガス検出装置 | |
WO2007100723A3 (en) | Optical system for a flow cytometer | |
TWI633294B (zh) | Concentration measuring device | |
CA2553410A1 (en) | Gas detection method and gas detection device | |
TW200702883A (en) | Laser source device, display device, and projector | |
ATE441090T1 (de) | Positionsmebsystem | |
FR3075961B1 (fr) | Installation d'analyse des gaz | |
WO2008076353A3 (en) | Optical spectrophotometer | |
WO2006088735A3 (en) | Method and apparatus for combining light paths of like-colored light sources | |
WO2004104959A3 (en) | Smoke detector | |
DE10345507A1 (de) | Diodenlaser-Spektrometer | |
ATE361697T1 (de) | Staubsauger mit lichtleiterelement | |
WO2003087792A3 (en) | Method and apparatus for measuring light reflections of an object | |
DK0428702T3 (da) | Optoelektronisk apparat til fjernmåling af en fysisk størrelse | |
DE60205406D1 (de) | Optisches zweiwellenlängen-fluoreszenzanalysegerät |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |