EP2021772A1 - Capteur à fluorescence pour la détection de compositions gazeuses - Google Patents

Capteur à fluorescence pour la détection de compositions gazeuses

Info

Publication number
EP2021772A1
EP2021772A1 EP07722374A EP07722374A EP2021772A1 EP 2021772 A1 EP2021772 A1 EP 2021772A1 EP 07722374 A EP07722374 A EP 07722374A EP 07722374 A EP07722374 A EP 07722374A EP 2021772 A1 EP2021772 A1 EP 2021772A1
Authority
EP
European Patent Office
Prior art keywords
fluorescence sensor
gas
sensor according
diffusion layer
layer
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.)
Withdrawn
Application number
EP07722374A
Other languages
German (de)
English (en)
Inventor
Thomas Becker
Ilker Sayhan
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.)
Airbus Defence and Space GmbH
Original Assignee
EADS Deutschland GmbH
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 EADS Deutschland GmbH filed Critical EADS Deutschland GmbH
Publication of EP2021772A1 publication Critical patent/EP2021772A1/fr
Withdrawn legal-status Critical Current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
    • G01N21/78—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 producing a change of colour
    • G01N21/783—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 producing a change of colour for analysing 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
    • G01N21/75—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
    • G01N2021/7769—Measurement method of reaction-produced change in sensor
    • G01N2021/7786—Fluorescence

Definitions

  • Fluorescence sensor for the detection of gas compositions
  • the invention relates to a fluorescence sensor for detecting gas compositions with a carrier substrate and a fluorescent layer attached thereto, which essentially consists of a gas-permeable polymer matrix with a fluorescent dye incorporated therein.
  • fluorescence sensors of the type described above are designed such that they preferably react to target gases in the environment to be detected, which contain oxygen or NO 2 compounds or mixtures thereof. As a result, for example, explosives can be detected.
  • the fluorescence of the sensors is usually detected by a measuring device, which is mounted at a suitable distance from the fluorescence sensor, and converted electrically or electronically in suitable signal transmitters into desired signals.
  • the object of the present invention is to provide a fluorescence sensor whose fluorescence resulting from the detection of a gas composition is maintained over a desired period of time, so that a read-out measuring device does not have to be arranged directly at the location of the gas composition to be detected, but rather the fluorescence sensor Spend at another location or after a desired period of time, the detected gas composition then a, or there existing readout meter can transmit.
  • this object is achieved in that, in the case of a fluorescence sensor according to the preamble of patent claim 1, a diffusion layer of gas-permeable ceramics and / or polyvinyl chloride is deposited over the fluorescent layer. is arranged, which is adapted so that it causes a time delay of the gas diffusion from the environment to be detected to the fluorescent layer and vice versa.
  • the ambient gas to be measured penetrates more slowly to the fluorescent layer and diffuses away more slowly from there in the same way.
  • the gas composition immediately above the fluorescent layer is thus preserved for a certain time, so that the respectively emitted fluorescence with a time delay indicates the gas composition of the environment.
  • This time delay has the great advantage that it allows the user to measure fluorescence with a handheld instrument or to determine the gas concentration that corresponds to the conserved state.
  • the period of time over which the fluorescence is to be stored can be calibrated.
  • the diffusion layer is e.g. designed so that the storage of gases in the range of several hours.
  • the inventive structure of a fluorescence sensor z For example, an application on an RFID tag (Radio Frequency Identification Label) or on the type of such an RFID tag on objects or on packaging or transport structures are provided.
  • the parameters for the diffusion layer can readily be designed such that the gases are stored directly above the fluorescent layer for several hours.
  • the fluorescence sensor is integrated on one or more RFID tags.
  • the RFID tags are read, for example, at a distance of a few cm.
  • the thickness of the diffusion layer is between a few ⁇ m and a few hundred ⁇ m, the thickness of the diffusion layer being selected as a function of the desired time delay of the gas diffusion.
  • the permeability of the diffusion layer should preferably be adjusted with respect to oxygen and / or NO 2 compounds or mixtures thereof, which is likely to be of particular advantage for practical application with regard to the detection of explosive compounds.
  • ternary oxides and SU-8 polymers be provided for the diffusion layer as ceramics.
  • a further embodiment of the invention is that a plurality of differently reacting fluorescent layers are arranged side by side and covered by a diffusion layer. In this way, with one and the same fluorescence sensor with the desired time delay gas compositions can be detected by a variety of gas components.
  • carrier substrate polymers are used, Kapton, polyurethanes or polyethylenes are particularly suitable. Ceramics and silicon substrates are also possible.
  • a fluorescence sensor according to the invention is shown schematically.
  • a carrier substrate 1 which essentially has the shape of a cuboidal plate or of a strip or band
  • a fluorescent layer 10 is arranged which consists essentially of a gas-permeable polymer matrix 2 with incorporated fluorescence dye 3.
  • a gas-permeable diffusion layer 4 of thickness d is attached, so that gases which act on the fluorescent layer 10 from the environment 5, these delays only after their diffusion over the distance d through the diffusion layer 4 can reach.
  • the gas atmosphere in the region of the fluorescent layer 10 is maintained over a longer period of time, since the outward diffusion through the diffusion layer 4 back into the environment 5 is also delayed.
  • the diffusion layer 4 could be referred to according to their effect as a retention or storage layer.

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

La présente invention concerne un capteur à fluorescence pour la détection de compositions gazeuses avec un substrat de support (1) sur lequel est disposée une couche de fluorescence (10) qui est sensiblement composée d'une matrice polymère (2) perméable aux gaz contenant un colorant fluorescent (3), une couche de diffusion (4) en céramiques et/ou en polymères perméables au gaz étant disposée sur la couche de fluorescence (10), la couche de diffusion (4) étant conçue pour exercer un retard temporaire de la diffusion de gaz depuis l'environnement à détecter (5) vers la couche de fluorescence (10) et inversement.
EP07722374A 2006-05-30 2007-05-08 Capteur à fluorescence pour la détection de compositions gazeuses Withdrawn EP2021772A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006025470.8A DE102006025470B4 (de) 2006-05-30 2006-05-30 Fluoreszenzsensor zur Detektion von Gaszusammensetzungen
PCT/DE2007/000820 WO2007137550A1 (fr) 2006-05-30 2007-05-08 Capteur à fluorescence pour la détection de compositions gazeuses

Publications (1)

Publication Number Publication Date
EP2021772A1 true EP2021772A1 (fr) 2009-02-11

Family

ID=38476856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722374A Withdrawn EP2021772A1 (fr) 2006-05-30 2007-05-08 Capteur à fluorescence pour la détection de compositions gazeuses

Country Status (9)

Country Link
US (1) US20100239465A1 (fr)
EP (1) EP2021772A1 (fr)
JP (1) JP2009539070A (fr)
CN (1) CN101454657A (fr)
BR (1) BRPI0712133A2 (fr)
CA (1) CA2653894A1 (fr)
DE (1) DE102006025470B4 (fr)
RU (1) RU2425359C2 (fr)
WO (1) WO2007137550A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT512498B1 (de) * 2012-06-06 2013-09-15 Joanneum Res Forschungsgmbh Opto-chemischer Sensor
DE102014112972A1 (de) * 2013-09-12 2015-03-12 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Messmembran für einen optochemischen oder amperometrischen Sensor
CN107796795B (zh) * 2017-10-13 2019-08-09 福州大学 用于气体检测的荧光传感器
WO2019140047A1 (fr) * 2018-01-10 2019-07-18 The Trustees Of Princeton University Système et procédé pour capteurs ido (internet des objets) intelligents, sécurisés et écoénergétiques

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105870B1 (fr) 1982-10-06 1987-02-11 Avl Ag Dispositif de mesure pour déterminer le taux de dioxyde de carbone dans un échantillon
AT379688B (de) 1982-11-22 1986-02-10 List Hans Sensorelement zur bestimmung des o2-gehaltes einer probe
US4974929A (en) 1987-09-22 1990-12-04 Baxter International, Inc. Fiber optical probe connector for physiologic measurement devices
US4925268A (en) 1988-07-25 1990-05-15 Abbott Laboratories Fiber-optic physiological probes
DE3923950A1 (de) 1989-07-19 1991-01-31 Biotechnolog Forschung Gmbh Faseroptische sensoranordnung zur bestimmung eines analyts, insbesondere von glucose
US5326531A (en) 1992-12-11 1994-07-05 Puritan-Bennett Corporation CO2 sensor using a hydrophilic polyurethane matrix and process for manufacturing
US5387525A (en) 1993-09-03 1995-02-07 Ciba Corning Diagnostics Corp. Method for activation of polyanionic fluorescent dyes in low dielectric media with quaternary onium compounds
US5577137A (en) * 1995-02-22 1996-11-19 American Research Corporation Of Virginia Optical chemical sensor and method using same employing a multiplicity of fluorophores contained in the free volume of a polymeric optical waveguide or in pores of a ceramic waveguide
DE10101576B4 (de) * 2001-01-15 2016-02-18 Presens Precision Sensing Gmbh Optischer Sensor und Sensorfeld
US6686201B2 (en) 2001-04-04 2004-02-03 General Electric Company Chemically-resistant sensor devices, and systems and methods for using same
DE102004033303A1 (de) 2004-04-16 2005-11-03 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Vorrichtung zur Bestimmung und/oder Überwachung eines in einem fluiden Prozessmedium enthaltenen Analyten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007137550A1 *

Also Published As

Publication number Publication date
DE102006025470A1 (de) 2007-12-06
RU2425359C2 (ru) 2011-07-27
WO2007137550A1 (fr) 2007-12-06
CA2653894A1 (fr) 2007-12-06
RU2008150781A (ru) 2010-07-10
US20100239465A1 (en) 2010-09-23
BRPI0712133A2 (pt) 2012-01-10
CN101454657A (zh) 2009-06-10
JP2009539070A (ja) 2009-11-12
DE102006025470B4 (de) 2018-08-02

Similar Documents

Publication Publication Date Title
DE102016103750B4 (de) Sensorkappe für einen optochemischen Sensor und entsprechender optochemischer Sensor
DE102005001118A1 (de) Verfahren zur Sicherung und Überwachung von Behältern und Behälters mit Sicherungs- und Überwachungsmitteln
DE102006025470B4 (de) Fluoreszenzsensor zur Detektion von Gaszusammensetzungen
WO1990013663A1 (fr) Procede pour la mise en evidence d'activites biologiques dans un echantillon et dispositif pour la mise en ×uvre de ce procede
EP0449798A2 (fr) Procédé pour contrôler la qualité de substances organiques emballées et matériau d'emballage pour la réalisation du procédé
DE102014212136A1 (de) Messvorrichtung, insbesondere Feuchtigkeitsmessvorrichtung
DE102007028467A1 (de) Messvorrichtung mit RFID-Transponder und Sensor
DE102007016629A1 (de) Sensor zur Erfassung eines toxischen oder gefährlichen Gasgemisches und Betriebsverfahren
DE102007034155A1 (de) Vorrichtung mit mindestens einer Verpackungseinheit mit einem zur Radiofrequenz-Identifikation dienenden RFID-Chip und Verfahren dazu
WO2012152531A1 (fr) Emballage comportant une zone indicatrice
EP1802538A2 (fr) Emballage
DE102012202565A1 (de) Sicherheitsetikett für gefriergut
EP3143383A1 (fr) Mesure de la fluorescence d'un indicateur dans un emballage étanche aux gaz contenant des produits ayant une aptitude au stockage limitée
WO1994014133A1 (fr) Dispositif de detection et d'enregistrement de parametres physiques agissant sur des objets emballes et/ou sur l'emballage desdits objets
AT414057B (de) Einrichtung und verfahren zur erfassung von umgebungsparametern bei fussbodenbelägen und fussbodenbelag mit einer solchen einrichtung
WO2007014710A2 (fr) Capteur de gaz passif irreversible
EP2012092A1 (fr) Dispositif de mesure doté d'au moins deux capteurs
DE102014016712B4 (de) Transportables Chipmesssystem und Verfahren zum Betrieb eines transportablen Chipmesssystems
DE102006046229A1 (de) System aus an Gegenständen angebrachten RFID-Tags und zugehörigem Auswertegerät sowie damit realisierbare Anwendungen
DE102004053522A1 (de) Überwachungsvorrichtung für Transportgüter und Verfahren zur Überwachung von Transportgütern
DE102005056118A1 (de) Sicherheits- und/oder Wertdokument mit Gefahrenstoffsensor
EP2909595B1 (fr) Dispositif de fuite étalon à appliquer sur la paroi souple d'un objet testé
WO2008092797A1 (fr) Procédé et dispositif de surveillance individuelle de produits en vrac
EP3335040A1 (fr) Procédé et dispositif permettant de déterminer la température et l'humidité d'un ouvrage
DE102005021914A1 (de) Omnidirektionaler Stoßsensor mit Indikatorfunktion

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20081031

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20121201