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Evaluation of an automatic system for detection and positioning of small pore defects using digital radiography

Erik Lindgren (Institutionen för material- och tillverkningsteknik, Avancerad oförstörande provning) ; Lars Hammar (Institutionen för material- och tillverkningsteknik, Avancerad oförstörande provning)
THE 39TH ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION Vol. 32 (2012), 1511, p. 1646-1653.
[Konferensbidrag, refereegranskat]

A recently developed algorithm for positioning of small defects within metal bodies using digital radiography has been experimentally validated. The algorithm has been validated in the high contrast to noise limit. A calibration method has also been developed and validated. The average error in defect interspacings are found to be approximately0.03mm with a maximum at0.2mm, this is at the same order as the errors predicted by simulations. The relative error in interspacings are all less than 2% which is comparable to simulated ideal case at 0.25 %.

Nyckelord: X-ray Imaging, Digital Radiography, Non Destructive Testing



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Denna post skapades 2013-06-05. Senast ändrad 2013-08-13.
CPL Pubid: 177980

 

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