IT1240329B - Apparecchiatura per la rilevazione di gas a laser infrarosso e fibre ottiche - Google Patents

Apparecchiatura per la rilevazione di gas a laser infrarosso e fibre ottiche

Info

Publication number
IT1240329B
IT1240329B IT19721A IT1972190A IT1240329B IT 1240329 B IT1240329 B IT 1240329B IT 19721 A IT19721 A IT 19721A IT 1972190 A IT1972190 A IT 1972190A IT 1240329 B IT1240329 B IT 1240329B
Authority
IT
Italy
Prior art keywords
detection
equipment
optical fibers
infrared laser
laser gas
Prior art date
Application number
IT19721A
Other languages
English (en)
Other versions
IT9019721A0 (it
IT9019721A1 (it
Inventor
Antonio Lancia
Original Assignee
Tecsa
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 Tecsa filed Critical Tecsa
Priority to IT19721A priority Critical patent/IT1240329B/it
Publication of IT9019721A0 publication Critical patent/IT9019721A0/it
Priority to EP19910103794 priority patent/EP0447931A3/en
Publication of IT9019721A1 publication Critical patent/IT9019721A1/it
Application granted granted Critical
Publication of IT1240329B publication Critical patent/IT1240329B/it

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
    • 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
    • G01N2021/1793—Remote sensing
    • G01N2021/1795—Atmospheric mapping of gases
    • 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
    • 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

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)
IT19721A 1990-03-20 1990-03-20 Apparecchiatura per la rilevazione di gas a laser infrarosso e fibre ottiche IT1240329B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT19721A IT1240329B (it) 1990-03-20 1990-03-20 Apparecchiatura per la rilevazione di gas a laser infrarosso e fibre ottiche
EP19910103794 EP0447931A3 (en) 1990-03-20 1991-03-13 Infrared laser fibre optics gas detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19721A IT1240329B (it) 1990-03-20 1990-03-20 Apparecchiatura per la rilevazione di gas a laser infrarosso e fibre ottiche

Publications (3)

Publication Number Publication Date
IT9019721A0 IT9019721A0 (it) 1990-03-20
IT9019721A1 IT9019721A1 (it) 1991-09-20
IT1240329B true IT1240329B (it) 1993-12-07

Family

ID=11160653

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19721A IT1240329B (it) 1990-03-20 1990-03-20 Apparecchiatura per la rilevazione di gas a laser infrarosso e fibre ottiche

Country Status (2)

Country Link
EP (1) EP0447931A3 (it)
IT (1) IT1240329B (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9015800D0 (en) * 1990-07-18 1990-09-05 Secretary Trade Ind Brit Optical long-path monitoring apparatus
DE4210829A1 (de) * 1992-04-01 1993-10-07 Jaeger Erich Gmbh & Co Kg Verfahren und Vorrichtung zum Messen des Partialdrucks verschiedener Komponenten eines Gasgemisches
DE4300853C2 (de) * 1993-01-15 2003-09-04 Daimler Chrysler Ag Verfahren zur spektroskopischen Bestimmung des Stickstoffoxidgehalts
DE4320038C1 (de) * 1993-06-17 1994-12-15 Fraunhofer Ges Forschung Anordnung zum Bewerten eines Meßsignals nach Betrag und Phase in Bezug auf ein Referenzsignal
FR2713775A1 (fr) * 1993-12-14 1995-06-16 Migozzi Jean Blaise Procédé et dispositif pour la détection de produits et éléments à l'état gazeux.
FI95322C (fi) * 1994-03-02 1996-01-10 Instrumentarium Oy Spektroskooppinen mittausanturi väliaineiden analysointiin
DE19900129C2 (de) 1999-01-05 2001-09-13 Flow Comp Systemtechnik Gmbh Gasqualitätsbestimmung
DE10242529A1 (de) * 2002-09-12 2004-03-25 Forschungszentrum Jülich GmbH Meßsystem mit photoempfindlicher Elektrode
DE10242530A1 (de) * 2002-09-12 2004-03-25 Forschungszentrum Jülich GmbH Lichtquelle für ein Meßsystem mit photoempfindlicher Elektrode zum Nachweis eines oder mehrerer Analyten
GB0610921D0 (en) * 2006-06-02 2006-07-12 Tq Environmental Plc Gas monitoring system
US7999232B2 (en) 2006-12-22 2011-08-16 Photonic Innovations Limited Gas detector
NO20150765A1 (en) * 2015-06-11 2016-12-12 Neo Monitors As Gas monitor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1291468A (en) * 1969-11-05 1972-10-04 Dunlop Holdings Ltd Apparatus for detecting the presence in the atmosphere of a substance or gas
US3893771A (en) * 1974-08-22 1975-07-08 Diax Corp Laser absorption spectroscopy
GB2159940A (en) * 1984-06-01 1985-12-11 Stc Plc Remote optical sensors
NO156306C (no) * 1984-07-19 1987-09-02 Elektrisk Bureau As Infrar fiberoptisk gassdetektor.
FR2569864B1 (fr) * 1984-09-04 1987-01-30 Commissariat Energie Atomique Equipement d'emission et de distribution de lumiere par fibres optiques, notamment pour le controle spectrophotometrique en ligne a l'aide d'un spectrophotometre double faisceau
WO1987006011A1 (en) * 1986-03-24 1987-10-08 University Of Queensland Monitoring the presence of materials
GB2215039B (en) * 1988-02-10 1992-02-05 Plessey Co Plc Improvements relating to optical sensing arrangements

Also Published As

Publication number Publication date
EP0447931A2 (en) 1991-09-25
IT9019721A0 (it) 1990-03-20
IT9019721A1 (it) 1991-09-20
EP0447931A3 (en) 1992-02-26

Similar Documents

Publication Publication Date Title
EP0466134A3 (en) Method and device for passive alignment of diode lasers and optical fibers
DE69316878D1 (de) Optischer faser-laser und zugehöriger optischer koppler
DE69430614D1 (de) Faseroptischer Verstärker und optischer Zwischenverstärker
DK0582405T3 (da) Fremgangsmåde til trækning af en optisk fiber og fiber fremstillet herved
DE69303857D1 (de) Optischen Faserlaser enthaltender Artikel
KR950700557A (ko) 테이프상 광섬유 심선(core of tape like optical fiber)
IT8922856A0 (it) Apparato giuntatore a laser con fibra ottica
NO932716D0 (no) Optisk fiberbaand med adskilte fibre
FR2638854B1 (fr) Amplificateur laser a fibre optique dopee
DE69232331D1 (de) Faseroptischer Spleiss
IT1180721B (it) Dispositivo a fibre ottiche ad auto controllo e relativo apparecchio rivelatore di incendi
FI921723A (fi) Belagd optisk fiber och foerfarnde foer framstaellning av denna
IT1240292B (it) Sistema di sicurezza di fibre ottiche
FR2689632B1 (fr) Detecteur a fibre optique de contraintes.
IT1240329B (it) Apparecchiatura per la rilevazione di gas a laser infrarosso e fibre ottiche
ITTO960927A0 (it) Fibre ottiche monomodo attive e procedimento per la loro realizza- zione
HK142896A (en) Optical fibre amplifier and laser
DK0425014T3 (da) Forstærker til telekommunikationsledninger af optiske fibre og telekommunikationsledninger af optiske fibre med en sådan forstærker
DE69301955D1 (de) Faseroptischer Verstärker
IT1219404B (it) Procedimento e apparecchiatura per la fabbricazione di fibre ottiche in silice
FR2693804B1 (fr) Procédé et dispositif de clivage d'une fibre optique.
IT1277098B1 (it) Procedimento ed apparato per la realizzazione di attenuatori per fibre ottiche con risposta spettrale indipendente dalla lunghezza
IT1182686B (it) Procedimento ed apparecchiatura per la determinazione del raggio modale di fibre ottiche monomodo
ITGE910031A0 (it) Metodo e dispositivo per la produzione di falde di fibre
FR2688584B1 (fr) Structure a controle d'endommagement par fibre optique et methode de mise en óoeuvre.

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950227