ES2127955T3 - Procedimiento y dispositivo de determinacion de la absorcion de una radiacion electromagnetica por un gas. - Google Patents

Procedimiento y dispositivo de determinacion de la absorcion de una radiacion electromagnetica por un gas.

Info

Publication number
ES2127955T3
ES2127955T3 ES95102825T ES95102825T ES2127955T3 ES 2127955 T3 ES2127955 T3 ES 2127955T3 ES 95102825 T ES95102825 T ES 95102825T ES 95102825 T ES95102825 T ES 95102825T ES 2127955 T3 ES2127955 T3 ES 2127955T3
Authority
ES
Spain
Prior art keywords
absorption
gas
procedure
determining
electromagnetic radiation
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 - Lifetime
Application number
ES95102825T
Other languages
English (en)
Inventor
Francois Grasdepot
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.)
Itron Soluciones de Medida Espana SA
Schlumberger SA
Original Assignee
Itron Soluciones de Medida Espana SA
Schlumberger SA
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 Itron Soluciones de Medida Espana SA, Schlumberger SA filed Critical Itron Soluciones de Medida Espana SA
Application granted granted Critical
Publication of ES2127955T3 publication Critical patent/ES2127955T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (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

LA INVENCION SE REFIERE A UN PROCESO QUE CONSISTE SUCESIVAMENTE EN PRODUCIR DOS RADIACIONES ELECTROMAGNETICAS DE MISMA LONGITUD DE ONDA MODULADA EN FUNCION DEL TIEMPO SOBRE UNA GAMA DE LONGITUDES DE ONDAS, UNO LLAMADO DE MEDICION DESTINADO A ATRAVESAR UN GAS QUE PRESENTA UNA ABSORCION SELECTIVA DE ESTA RADIACION SELECTIVA DE ESTA RADIACION SOBRE LA GAMA Y EL OTRO LLAMADO DE REFERENCIA, DESTINADO A TRANSFORMAR CADA UNA DE DICHAS RADIACIONES EN SEÑALES ELECTRICAS RESPECTIVAMENTE DE MEDICION Y DE REFERENCIA, EN DIVIDIR LA SEÑAL DE MEDICION POR LA SEÑAL DE REFERENCIA PARA OBTENER UNA PRIMERA SEÑAL ELECTRICA DE DIVISION, EN SEPARAR EN DOS PARTES, UNA CA VARIANTE CON EL TIEMPO Y LA OTRA CC QUE NO VARIA CON EL TIEMPO Y EN DIVIDIR DICHA PARTE CA POR DICHA PARTE CC CON EL FIN DE OBTENER UNA SEGUNDA SEÑAL ELECTRICA DE DIVISION QUE REPRESENTA UNICAMENTE LA ABSORCION DE LA RADIACION ELECTROMAGNETICA POR ESTE GAS.
ES95102825T 1994-03-03 1995-02-28 Procedimiento y dispositivo de determinacion de la absorcion de una radiacion electromagnetica por un gas. Expired - Lifetime ES2127955T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9402578A FR2716973B1 (fr) 1994-03-03 1994-03-03 Procédé et dispositif de détermination de l'absorption d'un rayonnement électromagnétique par un gaz.

Publications (1)

Publication Number Publication Date
ES2127955T3 true ES2127955T3 (es) 1999-05-01

Family

ID=9460738

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95102825T Expired - Lifetime ES2127955T3 (es) 1994-03-03 1995-02-28 Procedimiento y dispositivo de determinacion de la absorcion de una radiacion electromagnetica por un gas.

Country Status (6)

Country Link
US (1) US5506685A (es)
EP (1) EP0670487B1 (es)
AT (1) ATE175775T1 (es)
DE (1) DE69507176T2 (es)
ES (1) ES2127955T3 (es)
FR (1) FR2716973B1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2314617B (en) * 1996-06-24 2000-08-23 Graviner Ltd Kidde High sensitivity gas detection
FR2759167B1 (fr) * 1997-01-31 1999-04-02 Schlumberger Ind Sa Procede et dispositif de determination d'une concentration d'un volume de gaz
DE19717145C2 (de) * 1997-04-23 1999-06-02 Siemens Ag Verfahren zur selektiven Detektion von Gasen und Gassensor zu dessen Durchführung
US6044329A (en) * 1997-06-19 2000-03-28 Kware Software Systems Inc. Laser gas analyzer and a method of operating the laser to reduce non-linearity errors
FR2784747B1 (fr) 1998-10-16 2000-12-08 Air Liquide Procede et dispositif de mesure de la quantite d'impuretes dans un echantillon de gaz a analyser
CA2351792C (en) * 2000-06-26 2010-07-27 Murray J. Thomson Method and apparatus for improved process control in combustion applications
DE10147065B4 (de) * 2001-09-25 2008-04-17 Siemens Ag Verfahren zur Detektion von Absorptionslinien in der Absorptionsspektroskopie
TW508714B (en) * 2001-12-21 2002-11-01 Chen Miin Jang Inspection method of interface quality between silicon semiconductor and gate insulation layer in metal oxide semiconductor device
US7054009B2 (en) * 2003-10-31 2006-05-30 Agilent Technologies, Inc. Method and apparatus for ultra-high sensitivity optical detection of biological and chemical agents
DE102004028360B3 (de) * 2004-06-11 2005-12-01 Drägerwerk AG Vorrichtung und Verfahren zur Bestimmung des Anteils einer Substanz in einer Gasprobe mit einem Infrarot-Messgerät

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1417398A (en) * 1972-02-18 1975-12-10 Nat Res Dev Spectrometers
US4410273A (en) * 1981-03-09 1983-10-18 Laser Analytics, Inc. Scanning laser spectrometer
US4730112A (en) * 1986-03-07 1988-03-08 Hibshman Corporation Oxygen measurement using visible radiation
SE469701B (sv) * 1992-08-21 1993-08-23 Siemens Elema Ab Spektrofotometrisk metod och spektrofotometer foer att utfoera metoden

Also Published As

Publication number Publication date
ATE175775T1 (de) 1999-01-15
FR2716973B1 (fr) 1996-06-07
US5506685A (en) 1996-04-09
EP0670487A1 (fr) 1995-09-06
FR2716973A1 (fr) 1995-09-08
DE69507176D1 (de) 1999-02-25
EP0670487B1 (fr) 1999-01-13
DE69507176T2 (de) 1999-07-22

Similar Documents

Publication Publication Date Title
ATE29609T1 (de) Geraet zur ueberpruefung von druckerzeugnissen.
RU94026273A (ru) Лазерное устройство для измерения расстояния
BR9801637B1 (pt) aparelho e mÉtodo de inspecionar o acabamento de um recipiente.
DE59300075D1 (de) Anordnung zur Stabilisierung der Wellenlänge des von einer Laserdiode abgegebenen Lichstrahles und Laser-Interferometer.
KR890005938A (ko) 레이저 파장의 안정화 방법 및 파장 안정화 장치
GR3003542T3 (es)
TW198094B (es)
EP0759538A3 (en) Laser system for surveying
ES2127955T3 (es) Procedimiento y dispositivo de determinacion de la absorcion de una radiacion electromagnetica por un gas.
DE59510774D1 (de) Vorrichtung und Verfahren zur Messung des Bräunungsgrades eines Gargutes
DE69221457D1 (de) Einrichtung, in der Frequenzerhöhung von elektromagnetischer Strahlung auftritt, und eine solche Einrichtung enthaltendes Gerät zum optischen Abtasten einer Informationsebene
GR3006035T3 (es)
ATE111593T1 (de) Positionsmesseinrichtung.
ATE105402T1 (de) Positionsmesseinrichtung.
KR910008376A (ko) 렌즈의 표면질 측정방법
JPS5783079A (en) Driving method of semiconductor laser
KR870000575A (ko) 측거장치
EP0391278A3 (en) Doppler velocity meter
DE3874556D1 (de) Vorrichtung zur stabilisation der strahlungsenergieverteilung in einem laserstrahlabtaster.
SE8903363A (es)
CA2062550A1 (en) Optical distance measuring apparatus
EP0548027A3 (es)
ES2079282A2 (es) Dispositivo interferometrico y metodo para medir y para estabilizar la longitud de onda de diodo laser.
FR2632724B1 (fr) Procede et dispositif de mesure de la visibilite a travers un milieu d'opacite variable
WO1997015823A3 (de) Vorrichtung und messverfahren zur bestimmung des absorptions- und/oder streuungsgrades eines mediums

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 670487

Country of ref document: ES