Publication: In-line detection and evaluation of surface defects on thin metallic wires
No Thumbnail Available
Official URL
Full text at PDC
Publication Date
2001
Advisors (or tutors)
Journal Title
Journal ISSN
Volume Title
Publisher
The International Society for Optical Engineering (SPIE)
Citations
Exportar
Abstract
We have developed a prototype for in-line detection of surface defects in metallic wires, specially for scratches. A simple geometrical relationship between surface topography and conical reflection, permits to correlate the defects with intensity patterns in a simple way. The presented apparatus consists basically in a grating-divided laser beam incident on angular equidistant points. A CCD and an associated optics capture the information of the whole wire perimeter at once. Analytic rudiments are provided in agreement with the experimental results.
Description
© SPIE--The International Society for Optical Engineering.
Conference on Optical Measurement Systems for Industrial Inspection II (2ª. 2001. Múnich, Alemania).