Fibreoptic reflectometric technique for the automatic detection and measurement of surface cracks

被引:6
|
作者
Lopez, C
Doval, AF
Dorrio, BV
Blanco-Garcia, J
Bugarin, J
Alen, JM
Fernandez, A
Fernandez, JL
Perez-Amor, M
Tejedor, BG
机构
[1] Univ Vigo, Dept Fis Aplicada, Vigo 36200, Spain
[2] TECNATOM SA, Madrid 28709, Spain
关键词
optical inspection; crack detection; reflectometry;
D O I
10.1088/0957-0233/9/9/008
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A new fibreoptic reflectometric technique for the automatic detection and measurement of surface cracks is proposed, described and analysed. A relationship between the system output image and the surface crack distribution is obtained from theory and a crack measurement principle is derived. Analysis of the experimental data obtained using a first laboratory prototype has validated the proposed measurement principle. The results of a second generation prototype confirm that the technique promises to be a valuable tool in practical inspection tasks.
引用
收藏
页码:1413 / 1431
页数:19
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