This paper describes the development programme for a portable non-contact inspection system, suitable for in-service inspection of aeronautical structures. The instrument is powered from a re-chargeable battery pack which provides over six hours of continuous usage. The transducer front end is a lightweight, hand-held assembly in which a pair of piezocomposite transducers are housed. Angular adjustment of the transducers enables the instrument to operate into a variety of materials, with metallic and composite materials of primary interest. Importantly, a single channel oscilloscope has, been incorporated to provide visual interpretation of the processed received signal. Defect detection is demonstrated in a number of aerospace samples, with the resultant C-scans presented where appropriate.
|Number of pages||8|
|Publication status||Published - Jul 2002|
|Event||29th Annual Review of Progress in Quantitative Nondestructive Evaluation - Bellingham, United States|
Duration: 14 Jul 2002 → 19 Jul 2002
|Conference||29th Annual Review of Progress in Quantitative Nondestructive Evaluation|
|Period||14/07/02 → 19/07/02|
- ultrasonic inspection instrument
- aeronautical structures
- in-service conditions
- composite transducers
Gachagan, A., Kelly, S., Altman, M., Grauvogl, E., Hayward, G., Banks, R., ... Skillen, D. (2002). Development of a manual air-coupled ultrasonic inspection instrument for use on aeronautical structures under in-service conditions. 883-890. Paper presented at 29th Annual Review of Progress in Quantitative Nondestructive Evaluation , Bellingham, United States.