This paper describes the successful test of a multi-point fiber optic oxygen sensor system during the static firing of an Evolved Expandable Launch Vehicle (EELV)/Delta IV common booster core (CBC) rocket engine at NASA's Stennis Flight Center. The system consisted of microsensors (optrodes) using an oxygen gas sensitive indicator incorporated onto an optically transparent porous substrate. The modular optoelectronics and multiplexing network system was designed and assembled utilizing a multi-channel opto-electronic sensor readout unit that monitored the oxygen and temperature response of the individual optrodes in real-time and communicated this information via a serial communication port to a remote laptop computer. The sensor packaging for oxygen consisted of two optrodes - one doped with an indicator sensitive to oxygen, and the other doped with an indicator sensitive to temperature. The multichannel oxygen sensor system is fully reversible. It has demonstrated a dynamic response to oxygen gas in the range of 0% to 100% with 0.1% resolution and a response time of ≤10 seconds. The sensor package was attached to a custom fiber optic ribbon cable, which was then connected to a fiber optic trunk communications cable (standard telecommunications-grade fiber) that connected to the optoelectronics module. Each board in the expandable module included light sources, photo-detectors, and associated electronics required for detecting oxygen and temperature. The paper illustrates the sensor design and performance data under field deployment conditions.


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    Titel :

    Fiber optic oxygen sensor leak detection system for space applications


    Beteiligte:
    Kazemi, Alex A. (Autor:in) / Goswami, Kish (Autor:in) / Mendoza, Edgar A. (Autor:in) / Kempen, Lothar U. (Autor:in)

    Kongress:

    Photonics in the Transportation Industry: Auto to Aerospace ; 2007 ; Boston,MA,United States


    Erschienen in:

    Erscheinungsdatum :

    26.09.2007





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Fiber optic oxygen sensor leak detection system for space applications [6758-11]

    Kazemi, A.A. / Goswami, K. / Mendoza, E.A. et al. | British Library Conference Proceedings | 2007


    A Fiber-Optic Sensor for Leak Detection in a Space Environment

    Sinko, John / Korman, Valentin / Hendrickson, Adam et al. | AIAA | 2009


    Fiber optic oxygen sensor detection system for aerospace applications

    Kazemi, A.A. / Mendoza, E.A. / Kempen, L.U. et al. | Tema Archiv | 2001


    Fiber optic oxygen sensor detection system for aerospace applications

    Kazemi, Alex A. / Mendoza, Edgar A. / Kempen, Lothar U. et al. | SPIE | 2001