The application of Pulse-echo thermal wave imaging to nondestructive inspection (NDI) of aircraft is described. This technique uses high-power photographic flash lamps as a heat source and an IR video camera as a detector. The flash lamps launch pulses of heat into the skin of the aircraft and the IR camera images the returning thermal wave reflections from subsurface defects. The system also includes electronic hardware and software for carrying out the time-gated imaging and real time analysis of the defects. It also has the ability to image large areas (currently 17' wide by 17' high) in short times (currently one minute, including time to store the image and move the system to the adjacent imaging position). This translates into an inspection speed of over 90 feet of a 17' strip of aircraft per hour. The technique was applied to a variety of airframe defects, including metal and composite structures. Images of typical structures and defects are presented.


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    Titel :

    Thermal wave imaging for NDI of aircraft


    Weitere Titelangaben:

    Optische Abbildung von Wärmewellen für die zerstörungsfreie Prüfung von Luftfahrtgerät


    Beteiligte:
    Favro, L.D. (Autor:in) / Thomas, R.L. (Autor:in)


    Erscheinungsdatum :

    1995


    Format / Umfang :

    4 Seiten, 4 Bilder, 5 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Thermal wave imaging of aircraft structures

    Favro, L.D. / Ahmed, T. / Han, X. et al. | Tema Archiv | 1995


    Thermal Wave Imaging for NDI of Aircraft

    Favro, L. D. / Thomas, R. L. / ASME et al. | British Library Conference Proceedings | 1995


    Thermal wave imaging for aging aircraft inspection

    Favro, L.D. / Kuo, P.K. / Thomas, R.L. et al. | Tema Archiv | 1993


    Thermal Wave Imaging for NDI of Aircraft

    Favro, L. D. / Thomas, R. L. | British Library Online Contents | 1995


    Quantitative thermal wave imaging of corrosion on aircraft

    Han, Xiaoyan / Favro, L.D. / Ahmed, T. et al. | Tema Archiv | 1997