Patent ID: 8426769
Filing Date: 2013-04-23
Classification: G01B,G01N

Abstract:
1. A method of displaying and monitoring a profile of a weld bead inside a groove provided between two metal workpieces, wherein: an assembly is placed inside the groove, said assembly comprising, facing one another, an image acquisition means, a light source, a beam of which is directed towards said image acquisition means, and, between the image acquisition means and the light source, a mask; the optical axis of the image acquisition means is oriented so as to be approximately parallel to the sidewalls of the groove; a light beam produced by the light source is directed towards the mask and the image acquisition means; a central shadow zone and a peripheral halo are formed by means of the light beam and the mask, said halo illuminating, approximately perpendicularly, the weld bead and the sidewalls; the profile of the weld bead and the sidewalls are displayed on a display/monitoring means; and said assembly is moved inside the groove longitudinally and parallel to the sidewalls.