Defect detection in articles using computer modelled...

Details Defect detection in articles using computer modelled... Defect detection in articles using computer modelled...

G - Physics

01

N

G01N 21/88 (2006.01) G01N 25/72 (2006.01)

Patent

CA 2239754

A process for the detection of flaws in an article comprising infra-red scanning of the article as its temperatures changes and comparing the infra-red scans for regularity of cooling/heating pattern. Where the article is irregular, such as in marginal areas, thermodynamic modelling is performed to establish a hypothetic cooling/heating pattern for an unflawed article.

Procédé de détection de défauts dans un article. Il consiste à balayer par infra-rouge un article durant que sa température change, ainsi qu'à comparer les résultats du balayage en ce qui touche la régularité du modèle de refroidissement-réchauffement. Lorsque l'article est de forme irrégulière, p. ex., dans les zones marginales, une modélisation thermodynamique est effectuée afin d'établir un modèle de refroidissement-réchauffement de base pour produire un article sans défaut.

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