This paper describes a novel integrated optic spacesuit atmospheric quality sensor to enhance astronaut safety by monitoring the spacesuit's closed environments. The integrated optic sensor (IOS) is made of self-calibrating miniaturized channel waveguide elements that monitor oxygen concentration in real time. Fabrication employs direct photolithographic writing of channel waveguides onto a photoactive porous glass matrix. The active channel waveguide is doped with an oxygen-sensitive fluorescent indicator. A compact phase flourometer measures relative fluorescent lifetime - a direct function of the oxygen partial pressure. In testing, the IOS chip demonstrated a response time of 5 seconds from 0 % to 100 % oxygen at STP.


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    Title :

    Integrated optic sensor for spacesuit atmospheric quality


    Additional title:

    Integrierter optischer Sauerstoffsensor für die atmosphärische Zustandsüberwachung im Raumanzug


    Contributors:
    Medoza, E.S. (author) / Khalil, A. (author) / Robinson, D. (author) / Sorenson, J. (author) / Iossi, A. (author) / Goswami, K. (author) / Lieberman, R.A. (author)

    Published in:

    Publication date :

    1996


    Size :

    5 Seiten, 8 Bilder, 7 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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