The implementation of terahertz (THz) imaging for non-destructive evaluation shows great promise in 2 and 3 dimensional non-contact inspection of non-conductive materials such as plastics, foam, composites, ceramics, paper, wood and glass. THz imaging employs safe low power non-ionizing electromagnetic pulses, which produce images with lateral resolution <200 microns, and depth resolution <50 microns. We demonstrate the detection of voids and disbonds intentionally incorporated within the sprayed on foam insulation of a space shuttle external tank mock-up segment using time domain THz imaging. Recently, highly integrated turn-key THz imaging systems have been introduced commercially. An industrially hardened THz scanning system which has been deployed to scan the space shuttle tank with small remote THz transceiver on a 30 meter fiber optic umbilical, is described.


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    Titel :

    Technology and applications of terahertz imaging non-destructive examination. Inspection of space shuttle sprayed on foam insulation


    Weitere Titelangaben:

    Technologie und Anwendung der Terahertz-Abbildung zur zerstörungsfreien Prüfung. Prüfung von Aufsprühungen auf den Isolierschaum am Space-Shuttle


    Beteiligte:
    Zimdars, D. (Autor:in) / Valdmanis, J.A. (Autor:in) / White, J.S. (Autor:in) / Stuk, G. (Autor:in) / Williamson, S. (Autor:in) / Winfree, W.P. (Autor:in) / Madaras, E.I. (Autor:in)


    Erscheinungsdatum :

    2005


    Format / Umfang :

    8 Seiten, 7 Bilder, 5 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




    Time domain terahertz detection of flaws within space shuttle sprayed on foam insulation

    Zimdars, D. / Valdmanis, J.A. / White, J.S. et al. | IEEE | 2004



    Modeling and processing of Terahertz imaging in space shuttle external tank foam inspection

    Chiou, C.P. / Thompson, R.B. / Winfree, W.P. et al. | Tema Archiv | 2006


    Inspection of space shuttle insulation foam defects using a 0.2 THz Gunn diode oscillator

    Hua Zhong, / Karpowicz, N. / Jingzhou Xu, et al. | IEEE | 2004


    Processing terahertz ray data in space shuttle inspection

    Chiou, C.P. / Thompson, R.B. / Winfree, W.P. et al. | Tema Archiv | 2007