FR2300338A1 - Procede et dispositif de detection de vapeurs organiques - Google Patents

Procede et dispositif de detection de vapeurs organiques

Info

Publication number
FR2300338A1
FR2300338A1 FR7603233A FR7603233A FR2300338A1 FR 2300338 A1 FR2300338 A1 FR 2300338A1 FR 7603233 A FR7603233 A FR 7603233A FR 7603233 A FR7603233 A FR 7603233A FR 2300338 A1 FR2300338 A1 FR 2300338A1
Authority
FR
France
Prior art keywords
guide
waveguide
light
detection method
organic vapor
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.)
Granted
Application number
FR7603233A
Other languages
English (en)
French (fr)
Other versions
FR2300338B1 (cg-RX-API-DMAC7.html
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.)
Monsanto Co
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Publication of FR2300338A1 publication Critical patent/FR2300338A1/fr
Application granted granted Critical
Publication of FR2300338B1 publication Critical patent/FR2300338B1/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
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
    • 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
    • G01N21/55—Specular reflectivity
    • G01N21/552—Attenuated total reflection
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/0009—Materials therefor
    • G02F1/0045—Liquid crystals characterised by their physical properties
    • 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
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
    • G01N2021/7706—Reagent provision
    • G01N2021/7709—Distributed reagent, e.g. over length of guide

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Nonlinear Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR7603233A 1975-02-05 1976-02-05 Procede et dispositif de detection de vapeurs organiques Granted FR2300338A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54731175A 1975-02-05 1975-02-05

Publications (2)

Publication Number Publication Date
FR2300338A1 true FR2300338A1 (fr) 1976-09-03
FR2300338B1 FR2300338B1 (cg-RX-API-DMAC7.html) 1979-05-18

Family

ID=24184186

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7603233A Granted FR2300338A1 (fr) 1975-02-05 1976-02-05 Procede et dispositif de detection de vapeurs organiques

Country Status (1)

Country Link
FR (1) FR2300338A1 (cg-RX-API-DMAC7.html)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2300338B1 (cg-RX-API-DMAC7.html) 1979-05-18

Similar Documents

Publication Publication Date Title
FR2106060A5 (cg-RX-API-DMAC7.html)
ES8306880A1 (es) "un metodo con su aparato correspondiente para medir el tiempo de coagulacion de una muestra de sangre".
LU79098A1 (fr) Procede et dispositif automatique de mise en couronne pour tube souple
SE7400508L (cg-RX-API-DMAC7.html)
DE3587510D1 (de) Geraet zur messung von endotoxin.
SE8202277L (sv) Sett och apparat for overvakning av diametern hos fibrer
GB1473012A (en) Refractometer for measuring the refractive index of a liquid
FR2300338A1 (fr) Procede et dispositif de detection de vapeurs organiques
JPS5339185A (en) Separately sampling apparatus of blood serum
SE8003348L (sv) Elektrooptisk reglerapparat for detektering av att en trad passerar genom en styrogla
EP0404544A3 (en) Non-contact type automatic multi-point diameter measurement apparatus
JPS5252664A (en) Detector for liquid level
ES390890A1 (es) Un metodo para disponer en contacto con un tubo, para su recuperacion subsiguiente, el extremo de desbobinado de una masa de hilo que esta sobre el tubo.
IL62062A (en) Temperature indicator for road surface
JPS52113699A (en) Label detector
JPS52142535A (en) Liquid crystal device
DE68901798D1 (de) Verfahren und einrichtung um die gesamte natur von brenngasen festzustellen mit dem ziel, diese zu optimieren und anwendungen dieser einrichtungen.
JPS57199931A (en) Detecting apparatus of disconnected part for optical fiber
JPS5381287A (en) Photoluminescence measuring device
IT1074237B (it) Dispositivo per rivelare vapori organici
NL7602148A (en) Detection of organic vapours - by change in light transmitted by liq crystal coated wave guide subjected to vapour
JPS5328447A (en) Measurement of length of optical fiber and device therefor
JPS52154644A (en) Optical fiber manufacturing device
JPS523480A (en) Vapour and frost detecting device
SU642665A1 (ru) Гигрометр

Legal Events

Date Code Title Description
ST Notification of lapse