Automatic signal classification system for ultrasonic weld inspection signals

P. Ramuhalli, L. Udpa, S. S. Udpa

Research output: Contribution to specialist publicationArticle

10 Scopus citations

Abstract

Neural network based automated signal classification (ASC) systems are being increasingly used to classify data obtained from nondestructive testing of samples. This paper describes an ASC system using the Fuzzy ARTMAP network. Three important issues relevant to ASC systems, namely, incremental learning, confidence or reliability measures, and performance improvement, are studied. A fuzzy logic based algorithm is used to estimate the reliability of the network decision. The reliability of the classification decision is then incorporated into a feedback algorithm to improve the performance of the network. Results on ultrasonic signals obtained from inspection of piping welds in nuclear power plants are presented.

Original languageEnglish
Pages65-69
Number of pages5
Volume58
No1
Specialist publicationMaterials Evaluation
StatePublished - Jan 2000

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