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EP0244394A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Sensor element for determining the concentration of substances

Assignee: AVL Medical Instruments AG
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Filing: 1987-04-14
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Granted: —
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Expires: 2007-04-14
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Abstract

Abstract Translated from German Herkömmliche Sensorelement zur optischen Bestimmung von Stoffkonzentrationen in gasförmigen und flüssigen Proben, welche eine Indikatorschicht mit mindestene einer Indikatorsubstanz aufweisen, sind bedingt durch die Größe der Einrichtungen zur Lichtanregung bzw. Lichtmessung nur bedindgt für Mikroanalysengeräte geeignet, bzw. massentechnologisch nicht einfach herstellbar. Zur Umgehung dieser Nachteile wird vorgeschlagen, daß auf der Trägerschicht (1) mindestens ein fotoempfindliches Element (3) und dessen elektrische Kontaktieurung in planarer Anordnung integriert sind, sowie daß die von der Anregungsstrahlung (11) angeregte Indikatorsubstanz (7, 7') der Indikatorschicht (6) mit den fotoempfindlichen Elementen (3) in optischem Kontakt steht. Conventional sensor elements for the optical determination of substance concentrations in gaseous and liquid samples, which have an indicator layer with at least one indicator substance, are only conditionally suitable for microanalysis devices due to the size of the devices for light excitation or light measurement, or are not easy to manufacture by mass technology. To avoid these disadvantages, it is proposed that at least one photosensitive element (3) and its electrical contacting be integrated in a planar arrangement on the carrier layer (1), and that the indicator substance (7, 7 ') of the indicator layer excited by the excitation radiation (11) (6) is in optical contact with the photosensitive elements (3).

Inventors

  • 👤 Hermann Dipl.-Ing.Dr. Marsoner
  • 👤 Herbert Dipl.-Ing.Dr. Kroneis
  • 👤 Hellfried Dr. Karpf
  • 👤 Otto S. Dr. Wolfbeis
  • 👤 Helmut Dipl.-Ing. List
  • 👤 Alfred Dr. Leitner

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 09:05
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/75; G01N21/77; G01N21/17; G01N21/25; G01N21/255; G01N2021/1738; G01N2021/174; G01N2021/7769; G01N2021/7786; G01N21/62; G01N21/63; G01N21/64; G01N21/6428; G01N21/78; G01N21/81; G01N2201/00; G01N2201/06; G01N2201/062; G01N2201/0621; G01N2201/0622

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