Abstract

Laser renovation is still a rather new field of study, and on most occasions reasonable results have to be obtained by “trial and error” The reason for this is the difficulty in handling the vast amount of parameters associated with the degree of pollution, type of stone and the laser. There is still a lack of measuring techniques to indicate how much of the pollution has been ablated (state assessment) and, in particular, how much of the pollution is being ablated during the cleaning process (process monitoring). The aim of this work, therefore, was to find a way to quantify the ablation process in-line.

© 1996 IEEE