Life extensions on numerous military and commercial aircraft have heightened the need for quantitative, nondestructive detection of deeply buried damage in aircraft structures. Traditional coil-based eddy-current sensors are severely limited in their ability to detect small buried defects, defects under fasteners and deeply buried cracks and corrosion. TPL has developed eddy-current sensors based on the use of Giant Magnetoresistance (GMR) sensor elements. GMR offers high sensitivity, very wide bandwidth and low noise from DC to over 1 GHz. Coupled with the ability to fabricate GMR sensors with micron-level dimensions, these new eddy-current sensors offer an ideal technology for inspections requiring high spatial resolution and low- frequency, deeply-penetrating fields. This paper discusses magnetoresistance and results obtained using a prototype GMR sensor for both contacting and non-contacting, C-Scan measurements on samples containing crack and corrosion damage.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Low-frequency magnetoresistive eddy-current sensors for NDE of aging aircraft


    Beteiligte:
    Boltz, Eric S. (Autor:in) / Cutler, D. W. (Autor:in) / Tiernan, Timothy C. (Autor:in)

    Kongress:

    Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware II ; 1998 ; San Antonio,TX,USA


    Erschienen in:

    Erscheinungsdatum :

    1998-03-31





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Low-frequency magnetoresistive eddy-current sensors for NDE of aging aircraft [3397-09]

    Boltz, E. S. / Cutler, D. W. / Tiernan, T. C. et al. | British Library Conference Proceedings | 1998


    Low-frequency eddy current inspection of aircraft structure

    Hagemaier, D.J. / Steinberg, A.P. | Tema Archiv | 1982


    NDE of aging aircraft structure using orthogonal-axis eddy current probes

    Burkhardt, G.L. / Fisher, J.L. / Stolte, J.S. et al. | Tema Archiv | 1997


    Magnetoresistive sensors for navigation

    Petersen,A. / Philips,Hamburg,DE | Kraftfahrwesen | 1989


    Magneto-optic/eddy current imaging of aging aircraft. A new NDI technique

    Fitzpatrick, G.L. / Thome, D.K. / Skaugset, R.L. et al. | Tema Archiv | 1993