ISSN:
1573-4862
Keywords:
Eddy currents
;
nondestructive testing
;
signal processing
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Mathematics
Notes:
Abstract As a nondestructive testing, eddy currents are largely used by industry. Nevertheless, complete automatization of the devices are still unusual, especially those that are able to make a classification of the different kinds of defects likely to appear in the tested material. We propose a method based on a few simple hypotheses on the shape of the defect and the reaction of the probe which permits the extraction of information sufficient enough for classification. The analysis of the “image” of the defect which is obtained by the scanning of the tested piece involves two steps: (1) an analysis of the orientation and the shape of the defect and (2) the analysis of the relief of this image, which determines the position of significant features. The method has been tested on a given sample of population with a 80% rate of success.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00570620
Permalink
