This paper describes a novel integrated optic spacesuit atmospheric quality sensor to enhance astronaut safety by monitoring the spacesuit's closed environment. 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 fluorometer measures relative fluorescence 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:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference On Environmental Systems ; 1996



    Publication date :

    1996-07-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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