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Proceedings Paper

Laser scattering measurement for laser removal of graffiti
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Paper Abstract

In this contribution, a technical development of the laser scattering measurement for laser removal of graffiti is reported. This study concentrates on the removal of graffiti from metal surfaces. Four colored graffiti paints were applied to stainless steel samples. Cleaning efficiency was evaluated by the laser scattering system. In this study, an angular laser removal of graffiti was attempted to examine the removal process under practical conditions. A Q-switched Nd:YAG laser operating at 1.06 microns with the repetition rate of 1 Hz was used to remove graffiti from stainless steel samples. The laser fluence was investigated from 0.1 J/cm2 to 7 J/cm2. The laser parameters to achieve the removal effectiveness were determined by using the laser scattering system. This study strongly leads to further development of the potential online surface inspection for the removal of graffiti.

Paper Details

Date Published: 29 July 2015
PDF: 4 pages
Proc. SPIE 9659, International Conference on Photonics Solutions 2015, 96590T (29 July 2015); doi: 10.1117/12.2196112
Show Author Affiliations
Watcharawee Tearasongsawat, Kasetsart Univ. (Thailand)
Phumipat Kittiboonanan, King Mongkut’s Univ. of Technology North Bangkok (Thailand)
Chaiya Luengviriya, Kasetsart Univ. (Thailand)
Amarin Ratanavis, King Mongkut’s Univ. of Technology North Bangkok (Thailand)


Published in SPIE Proceedings Vol. 9659:
International Conference on Photonics Solutions 2015
Surasak Chiangga; Sarun Sumriddetchkajorn, Editor(s)

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