This paper describes a lifetime PSP system that has recently been developed using pulsed light-emitting diode (LED) lamps and a new interline transfer CCD camera technology. This system alleviates noise sources associated with lifetime PSP systems that use either flash-lamp or laser excitation sources and intensified CCD cameras for detection. Calibration curves have been acquired for a variety of PSP formulations using this system, and a validation test was recently completed in the subsonic aerodynamic research laboratory (SARL) at Wright-Patterson air force base (WPAFB). In this test, global surface pressure distributions were recovered using both a standard intensity-based method and the new lifetime system. Results from the lifetime system agree both qualitatively and quantitatively with those measured using the intensity-based method. Finally, an advanced lifetime imaging technique capable of measuring temperature and pressure simultaneously is introduced and initial results are presented.


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    Titel :

    Development of next generation lifetime PSP imaging systems


    Beteiligte:
    Watkins, A.N. (Autor:in) / Jordan, J.D. (Autor:in) / Leighty, B.D. (Autor:in) / Ingram, J.L. (Autor:in) / Oglesby, D.M. (Autor:in)


    Erscheinungsdatum :

    2003-01-01


    Format / Umfang :

    555917 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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