FIBEROPTIC REFLECTOMETRIC TECHNIQUE FOR THE AUTOMATIC DETECTION AND MEASUREMENT OF SURFACE CRACKS

Authors
LOPEZ C DOVAL AF DORRIO BV BLANCOGARCIA J BUGARIN J ALEN JM FERNANDEZ A FERNANDEZ JL PEREZAMOR M TEJEDOR BG
Citation
C. Lopez et al., FIBEROPTIC REFLECTOMETRIC TECHNIQUE FOR THE AUTOMATIC DETECTION AND MEASUREMENT OF SURFACE CRACKS, Measurement science & technology, 9(9), 1998, pp. 1413-1431
Citations number
32
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Measurement science & technology → ACNP
ISSN journal
09570233
Volume
9
Issue
9
Year of publication
1998
Pages
1413 - 1431
Database
ISI
SICI code
0957-0233(1998)9:9<1413:FRTFTA>2.0.ZU;2-7
Abstract
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 techniq ue promises to be a valuable tool in practical inspection tasks.