In the nondestructive inspection of aerospace materials and structures, water-coupled ultrasonic inspection is often not desirable due to contamination and property alteration concerns. Examples include composite and foam structures in space applications and honeycomb sandwiches that cannot tolerate water ingression. For practical and operational reasons, water-coupled ultrasound is also not preferred for on-aircraft inspection in maintenance hangars. Non-contact, air-coupled ultrasonic transducers are therefore an attractive alternative for such applications. This paper describes our experience of using piezoceramic air-coupled transducers for flaw detection and repair evaluation of composite parts. The paper first discusses the basic principles of air-coupled ultrasonic measurement and laboratory tests of various materials and structures, followed by a description of a portable, manual, air-coupled ultrasonic scan system that allowed the use of air-coupled ultrasound in the field inspection of aircraft components.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Aerospace NDT using piezoceramic air-coupled transducers


    Weitere Titelangaben:

    Luftfahrt-ZfP mit piezokeramischen luftangekoppelten Wandlern


    Beteiligte:
    Hsu, D.K. (Autor:in) / Kommareddy, V. (Autor:in) / Barnard, D.J. (Autor:in) / Peters, J.J. (Autor:in) / Dayal, V. (Autor:in)


    Erscheinungsdatum :

    2004


    Format / Umfang :

    8 Seiten, 8 Bilder, 11 Quellen


    Anmerkungen:

    (Nicht paginiert)


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




    Design and realization of frequency agile piezoceramic transducers

    Bernard, Julien / Lesieutre, George | AIAA | 2000


    Design and Realization of Frequency-Agile Piezoceramic Transducers

    Bernard, J. / Lesieutre, G. / American Institute of Aeronautics and Astronautics et al. | British Library Conference Proceedings | 2000



    The Damage Detection for Pipeline Structures Based on Piezoceramic Transducers

    Zuo, Chunyuan / Feng, Xin / Wang, JianQun et al. | TIBKAT | 2021