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Proceedings Paper

Retro-diffusion and transmission of laser radiation to characterize the paper fiber distribution and mass density
Author(s): António de O. Mendes; Paulo T. Fiadeiro; Ana P. Costa; Maria E. Amaral; Mohamed N. Belgacem
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Paper Abstract

This work concerns the characterization of the fiber distribution and mass density of paper samples (extracted from paper sheets) using an optical laser system previously designed and implemented by our research team. To accomplish this task, the developed optical system was used to illuminate the paper samples with laser radiation, by opposite sides, while two image detectors captured images of the retro-diffused and transmitted laser radiation on each side of the paper samples. The captured images were then submitted to several processing routines to enable the assessment of the fiber distribution and mass density. In our experiments, two paper samples extracted from paper sheets of different characteristics were used. In terms of experimental work, the samples were both scanned with the system considering several points dispersed across their entire area, allowing the assessment of both parameters locally (for specific locations of the samples) and globally (considering the samples as a whole).

Paper Details

Date Published: 18 November 2013
PDF: 8 pages
Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 8785AY (18 November 2013); doi: 10.1117/12.2022367
Show Author Affiliations
António de O. Mendes, Univ. da Beira Interior (Portugal)
Paulo T. Fiadeiro, Univ. da Beira Interior (Portugal)
Ana P. Costa, Univ. da Beira Interior (Portugal)
Maria E. Amaral, Univ. da Beira Interior (Portugal)
Mohamed N. Belgacem, Institut National Polytechnique de Grenoble (France)


Published in SPIE Proceedings Vol. 8785:
8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications
Manuel Filipe P. C. Martins Costa, Editor(s)

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