Mode Extraction and Defect Detection Using a Multi-Channel Array with Magnetostrictive Transducer and Mode Extraction.

This study presents that mode extraction and defect detection using a multi-channel array with magnetostrictive transducers. In order to detect multi-modes guided waves and extract them, we use transducer array with many transducers in the circumferential direction. The signals detected in the multi transducers are processed in data analyzing system developed by LabVIEW. The mode extraction technique gives the results that crack locations in both longitudinal and circumferential directions are detected. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR]