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

Volume

21

Issue

2

fYear

2015

fDate

March-April 2015

Firstpage

38

Lastpage

43

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;

fLanguage

English

Journal_Title

Industry Applications Magazine, IEEE

Publisher

ieee

ISSN

1077-2618

Type

jour

DOI

10.1109/MIAS.2014.2345818

Filename

6994444