Title :
Measuring Steel Strip Cleanliness : A Sensor System Based on Optics Phenomena
Author :
Lopera, J.M. ; Diaz, J. ; Linera, F.F. ; Perez, J.M. ; Vecino, G.
Author_Institution :
Tecnol. Electron., Univ. de Oviedo, Gijon, Spain
Abstract :
Steel cleanliness is very important prior to any steel coating process. A novel cleanliness sensor for flat steel products has been designed for use on the production line. The sensor is based on the optical reflectivity of dirty steel, which has been analyzed to determine how the incident light beam is dispersed. To design the optical circuit, the effect of steel lamination/processing marks on light dispersion was quantified. Fresnel lenses were employed to concentrate the dispersed beam again on a photodiode.
Keywords :
lenses; metallurgy; optical dispersion; optical sensors; photodiodes; reflectivity; steel; strips; Fresnel lenses; cleanliness sensor; dirty steel optical reflectivity; flat steel products; incident light beam; light dispersion; optical circuit; photodiode; steel coating process; steel lamination-processing marks; steel strip cleanliness measurement; Coatings; Laser beams; Manufacturing processes; Measurement by laser beam; Reflectivity; Steel; Structural beams;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/MIAS.2014.2345818
