A prototype wireless guided wave inspection system is developed to inspect layered structures such as aircraft wing. Preliminary experiments on a 0.8mm aluminium plate with a 12mm long, 50% through-wall-depth crack clearly demonstrated its feasibility of defect detection. Potential applications on an E2 plane wing section are also presented. The inspection system made use of a station monopole antenna as a transmitter, an on-board monopole or flat panel antenna as transponder, a PVDF comb transducer for guided wave generation and sensing, and a portable active monopole antenna for receiving. Practical leave-on-board antenna designs for aircraft wing are discussed. Further improvements include a more powerful tone-burst generator for more input power; more efficiency sensor design and impedance matching; a more efficient on-board antenna and transmission antenna specially designed for 3 MHz etc.
Wireless nondestructive inspection of aircraft wing with ultrasonic guided waves
Drahtlose zerstörungsfreie Prüfung von Flugzeugflügeln mit geführten Ultraschallwellen
2004
7 Seiten, 13 Bilder, 7 Quellen
(Nicht paginiert)
Conference paper
Storage medium
English
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