METHOD FOR INSPECTING THE SURFACE OF A ROLL CYLINDER AND DEVICE THEREFOR

摘要

The invention concerns a method for inspecting the surface of a cylindrical body, and more particularly a roll cylinder, which consists in observing at least a surface zone using an inspection device having an optical axis oriented towards said surface zone so as to determine the state of the surface. Therefor, it consists in capturing at least an image of the zone supplied by the inspection device, analysing at least one of the captured images, comparing the captured image, respectively one of the captured images, with the analysis of a reference image, detecting variations between the analysis of the captured image, respectively of the captured images, and the analysis of the reference image, and adjusting at least the orientation of the optical axis so as to reduce, and preferably eliminate, the observed variations. The device may comprise means for mechanical and/or optical adjustment of the orientation of the optical axis.