Defect classification using a new feature for pulsed eddy current sensors

The objective of this study is to identify defects such as surface cracks, subsurface defects and metal losses using feature based pulsed eddy current sensors. A new feature, termed as the rising point, related to the propagation time of electromagnetic waves in metallic targets is proposed for defe...

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Bibliographic Details
Main Authors: Tian, Gui Yun, Sophian, Ali
Format: Article
Language:English
Published: Elsevier 2005
Subjects:
Online Access:http://irep.iium.edu.my/46713/
http://irep.iium.edu.my/46713/
http://irep.iium.edu.my/46713/1/Defect_classification_using_a_new_feature_for_pulsed_eddy_current_sensors.pdf
Description
Summary:The objective of this study is to identify defects such as surface cracks, subsurface defects and metal losses using feature based pulsed eddy current sensors. A new feature, termed as the rising point, related to the propagation time of electromagnetic waves in metallic targets is proposed for defect classification. Experimental studies of the validation, robustness of the new feature of rising time are reported. In addition to other features, defects can be detected and quantified robustly and lift-off can also be derived from the rising time. Conclusion and further work are derived on the basis of the findings.