Aerospace NDT using piezoceramic air-coupled transducers
Aerospace NDT using piezoceramic air-coupled transducers
- New search for: Hsu, D.K.
- New search for: Kommareddy, V.
- New search for: Barnard, D.J.
- New search for: Peters, J.J.
- New search for: Dayal, V.
- New search for: Hsu, D.K.
- New search for: Kommareddy, V.
- New search for: Barnard, D.J.
- New search for: Peters, J.J.
- New search for: Dayal, V.
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.
Document information
Aerospace NDT using piezoceramic air-coupled transducers
Luftfahrt-ZfP mit piezokeramischen luftangekoppelten Wandlern
2004
8 Seiten, 8 Bilder, 11 Quellen
(Nicht paginiert)
Conference paper
Storage medium
English
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