It is difficult detecting flaws in multi-layered structures such as aircraft fuselage lap splices. Pulsed eddy current (PEC) is an effective method that has been demonstrated to be capable of quantifying such defects. Different from conventional eddy current testing techniques, the exciting coil of PEC is fed by a pulsed waveform, the transient response signal in time domain is analysed, peak amplitude and zero-crossing times are extracted to detect and characterise flaws. PEC is used to quantify cracks found in aircraft structure, with the purpose of overcoming the problem of low accuracy of PEC in the classification of defects. A new feature, namely the frequency spectrum separating point, is proposed for defect classification. Finally, an array PEC imaging method is proposed to detect corrosion appearing in the second layer of aircraft structure.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Pulsed eddy current technique used for non-destructive inspection of ageing aircraft


    Additional title:

    Impulswirbelstromverfahren zur zerstörungsfreien Prüfung von gealterten Flugzeugen


    Contributors:
    Yang, B. (author) / Luo, F. (author) / Han, D. (author)

    Published in:

    Insight ; 48 , 7 ; 411-414


    Publication date :

    2006


    Size :

    4 Seiten, 10 Bilder, 4 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Pulsed eddy current non destructive testing

    Thevenot, F. / Dessendre, M. / Tretout, H. | Tema Archive | 2002


    Transient Eddy-Current Area Inspection of Multi-Layer Aluminium Structure on Ageing Aircraft

    Edgar, D. / British Institute of Non-destructive Testing | British Library Conference Proceedings | 2004


    Scanned pulsed eddy current instrument for nondestructive inspection of aging aircraft

    Moulder, John C. / Bieber, Jay A. / Ward, W. W. et al. | SPIE | 1996


    Eddy current inspection in aircraft industry

    Godbole, U. / Gokhale, A. | Tema Archive | 2006


    Pulsed eddy current technique for defect detection in aircraft riveted structures

    He, Yunze / Luo, Feilu / Pan, Mengchun et al. | Tema Archive | 2010