We present the development of a semiconductor diode laser spectral absorption based gas species sensor for oxygen concentration measurements, intended for life support system monitoring and control applications. Employing a novel self-compensating, noise cancellation detection approach, we experimentally demonstrate better than 1% accuracy, linearity, and stability for monitoring breathing air conditions with 0.2 second response time. We also discuss applications of this approach to CO2 sensing.


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    Title :

    Diode-Laser Spectral Absorption-Based Gas Species Sensor for Life Support Applications


    Additional title:

    Sae Technical Papers


    Contributors:
    He, Gang (author) / Bruce, Lennox (author) / Shand, Mike (author)

    Conference:

    International Conference On Environmental Systems ; 1997



    Publication date :

    1997-07-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






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