In order to improve the performance of robotic laser medical operations, various methods are used to control the distance from the laser head or objective optics to the surface to be treated, and algorithms for correcting robot movements are built on their basis, which makes it possible to achieve high-precision processing. This study evaluated data of the reflected laser emission feedback sensor on uneven surfaces for use in robotic laser processing automation. As an uneven surface, a produced on a 3D printer detail with different profiles was used, which had been measured on conturograph before the experiments. Then, data were obtained from the feedback sensor of laser when passing along these profiles using a CMM and a robot. In the course of comparing the obtained results, it was found that the values of standard deviations from the real (highly-precise measured) surface do not exceed 600 μm. This value can be reduced by exclusion the identified problems that affect the data, the solution or leveling of which will be given in the further works of the authors. In general, it can be concluded that this method can be applied in robotic laser processing.
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