• DocumentCode
    1164057
  • Title

    Multi-sensor system based on phase detection, an LED array, and luminophore-doped xerogels

  • Author

    Chodavarapu, V.P. ; Bukowski, R.M. ; Kim, S.J. ; Titus, A.H. ; Cartwright, A.N. ; Bright, F.V.

  • Author_Institution
    Dept. of Electr. Eng., Univ. Buffalo, NY, USA
  • Volume
    41
  • Issue
    18
  • fYear
    2005
  • Firstpage
    1031
  • Lastpage
    1033
  • Abstract
    An optical multi-sensor system based on the excited-state lifetime of luminophore doped xerogels is described. The system is based on the novel concept of combining addressable surface-mount light-emitting diode (SM-LED) arrays with doped xerogel thin films; each SM-LED in the array is coated with a different xerogel-based sensor element. Each sensor element exhibits a unique response profile to the target analyte. A prototype system with a 2×2 LED array is presented, with three of the LEDs coated with xerogel-based sensing layers, each layer having a different sensitivity and response profile to oxygen (O2).
  • Keywords
    fibre optic sensors; gas sensors; light emitting diodes; sensor fusion; LED array; O2; doped xerogel thin films; excited-state lifetime; luminophore-doped xerogels; optical multisensor system; phase detection; response profile; surface-mount light-emitting diode arrays; target analyte; xerogel-based sensor element;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20052142
  • Filename
    1507080
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1164057