FR2333235B1 - - Google Patents

Info

Publication number
FR2333235B1
FR2333235B1 FR7633865A FR7633865A FR2333235B1 FR 2333235 B1 FR2333235 B1 FR 2333235B1 FR 7633865 A FR7633865 A FR 7633865A FR 7633865 A FR7633865 A FR 7633865A FR 2333235 B1 FR2333235 B1 FR 2333235B1
Authority
FR
France
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
Application number
FR7633865A
Other languages
French (fr)
Other versions
FR2333235A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hartmann and Braun AG filed Critical Hartmann and Braun AG
Publication of FR2333235A1 publication Critical patent/FR2333235A1/fr
Application granted granted Critical
Publication of FR2333235B1 publication Critical patent/FR2333235B1/fr
Granted legal-status Critical Current

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
    • G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light

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)
FR7633865A 1975-11-28 1976-11-10 Dispositif pour determiner la concentration d'un melange gazeux en oxydes d'azote Granted FR2333235A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2553565A DE2553565C3 (de) 1975-11-28 1975-11-28 Vorrichtung zur Bestimmung der Stickoxidkonzentration in einem Gasgemisch

Publications (2)

Publication Number Publication Date
FR2333235A1 FR2333235A1 (fr) 1977-06-24
FR2333235B1 true FR2333235B1 (Direct) 1981-08-28

Family

ID=5962941

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7633865A Granted FR2333235A1 (fr) 1975-11-28 1976-11-10 Dispositif pour determiner la concentration d'un melange gazeux en oxydes d'azote

Country Status (7)

Country Link
US (1) US4176963A (Direct)
JP (1) JPS6029060B2 (Direct)
DE (1) DE2553565C3 (Direct)
FR (1) FR2333235A1 (Direct)
GB (1) GB1566436A (Direct)
IN (1) IN146315B (Direct)
NL (1) NL171929C (Direct)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2939735A1 (de) * 1979-10-01 1981-04-16 Hartmann & Braun Ag, 6000 Frankfurt Fotoelektrisches gasanalysegeraet
US4491730A (en) * 1980-08-14 1985-01-01 Panametrics, Inc. Method and apparatus for feedback stabilized photometric detection in fluids
US4687337A (en) * 1981-09-02 1987-08-18 The United States Of America As Represented By The Secretary Of The Air Force Atmospheric Aerosol extinctiometer
DE3149869A1 (de) * 1981-12-16 1983-06-23 Siemens AG, 1000 Berlin und 8000 München "vorrichtung zur schnellen bestimmung der feuchte einer probe mit hilfe von infrarot-lumineszenzdioden"
EP0114866A1 (en) * 1982-07-26 1984-08-08 American Hospital Supply Corporation Improved fluorometer assembly and method
US4457162A (en) * 1982-09-17 1984-07-03 Institute Of Gas Technology Multi-frequency photo-acoustic detector
CH651664A5 (fr) * 1982-10-14 1985-09-30 Nestle Sa Procede et appareil de mesure de la brillance d'une couleur.
US4637729A (en) * 1983-12-14 1987-01-20 Carrier Corporation Fiber optic moisture analysis probe
DE3615260C2 (de) * 1986-05-06 1994-09-01 Krieg Gunther Verfahren und System zur Detektion von optisch absorbierenden Verbindungen in einem Medium durch optische Transmissionsmessung
DE3615259A1 (de) * 1986-05-06 1987-11-12 Krieg Gunther Verfahren und system zur kontinuierlichen bestimmung der konzentrationen von molekuehlverbindungen in fluessigkeiten und gasen
US4785184A (en) * 1986-05-27 1988-11-15 Spectral Sciences, Inc. Infrared trace element detection system
US4782232A (en) * 1986-09-22 1988-11-01 Spectral Sciences, Inc. Infrared molecular species monitor
DE3733573A1 (de) * 1987-10-03 1989-04-20 Leybold Ag Vorrichtung zum messen des fremdstoffanteils in stroemenden fluessigkeiten
US5272345A (en) * 1989-09-22 1993-12-21 Ada Technologies, Inc. Calibration method and apparatus for measuring the concentration of components in a fluid
US5429805A (en) * 1993-01-08 1995-07-04 Fuji Electric Co., Ltd. Non-dispersive infrared gas analyzer including gas-filled radiation source
JPH10111236A (ja) * 1996-10-03 1998-04-28 Nippon Koden Corp 炭酸ガス濃度測定装置
FR2809816B1 (fr) * 2000-05-30 2003-04-18 Gaz De France Procede et dispositif de detection de fuites de gaz
DE10036948A1 (de) * 2000-07-28 2002-02-21 Abb Patent Gmbh Verfahren zur MO¶x¶-Messung
DE10217545A1 (de) * 2002-04-17 2003-11-06 Zeiss Carl Jena Gmbh Mikroskop mit Positionserkennung von Wechslern optischer Elemente
DE10255697A1 (de) * 2002-11-29 2004-06-17 Abb Patent Gmbh Optisches Fotometer mit Referenz- und Messstrahlengang
DE10316685A1 (de) * 2003-04-10 2004-10-28 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Vorichtung zur photometrischen Messung der Konzentration einer chemischen Substanz in einer Meßlösung
US7525654B2 (en) * 2004-10-20 2009-04-28 Duquesne University Of The Holy Spirit Tunable laser-based chemical imaging system
US7528950B2 (en) * 2005-01-11 2009-05-05 Duquesne University Of The Holy Spirit Tunable laser-based process monitoring apparatus
US8253942B2 (en) * 2007-09-27 2012-08-28 Scott Technologies, Inc. Optical gas detector
CN104458619A (zh) * 2014-12-12 2015-03-25 上海理工大学 一种测定空气中氮氧化物含量的方法
WO2017013653A1 (en) * 2015-07-21 2017-01-26 Alex Keinan System and method for detection of particles in liquid or in air
US11327007B2 (en) 2019-09-26 2022-05-10 Fluidsens International Inc. Compact and secure system and method for detecting particles in fluid

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939361A (en) * 1955-05-20 1960-06-07 Leitz Ernst Gmbh Photometric apparatus compensated for fluctuations in light source intensity
US3689158A (en) * 1971-02-16 1972-09-05 Beckman Instruments Inc Atomic absorption analyzer compensated for background absorption
US3793525A (en) * 1973-01-02 1974-02-19 Philco Ford Corp Dual cell non-dispersive gas analyzer
US3811776A (en) * 1973-02-26 1974-05-21 Environmental Res & Tech Gas analyzer
US3861809A (en) * 1973-04-06 1975-01-21 Perkin Elmer Corp Confocal cavity optical gas sensor
US4008394A (en) * 1973-06-28 1977-02-15 Sensors, Inc. Gas analyzing
DE2407133B2 (de) * 1974-02-15 1976-12-09 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn Verfahren und vorrichtung zur bestimmung von stickoxid
US4053236A (en) * 1974-08-22 1977-10-11 The Perkin-Elmer Corporation Absorbance measuring photometer

Also Published As

Publication number Publication date
US4176963A (en) 1979-12-04
JPS5267695A (en) 1977-06-04
IN146315B (Direct) 1979-04-28
DE2553565A1 (de) 1977-06-08
NL7610748A (nl) 1977-06-01
DE2553565B2 (de) 1979-06-07
FR2333235A1 (fr) 1977-06-24
NL171929C (nl) 1983-06-01
GB1566436A (en) 1980-04-30
DE2553565C3 (de) 1980-02-07
JPS6029060B2 (ja) 1985-07-08

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Legal Events

Date Code Title Description
ST Notification of lapse