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A Method of Multi-crack Shape Identification from Eddy Current Testing Signals of Steam Generator Tubes Including Support Plates as Noise Sources
ノイズ源としての蒸気発生器伝熱管支持板部における渦電流探傷信号画像からの複数き裂形状認識法
2005
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
ノイズ源としての蒸気発生器伝熱管支持板部における渦電流探傷信号画像からの複数き裂形状認識法
This paper deals with identifying multiple cracks from eddy current testing (ECT) signals obtained in a steam generator tube with a support plate and deposits. Assume two-dimensionally scanned ECT signals to be a picture image, then the signal processing by a multi-frequency technique eliminates noise caused by the support plate and deposits. A template matching with help of genetic algorithms detects number and positions of cracks from the image after the signal processing. Inverse analysis
doi:10.1299/kikaia.71.254
fatcat:onsuzhfppbfszeppko4xx2asm4