VERFAHREN ZUR VERMESSUNG VON KRÜMMUNGSPROFILEN VON KANTEN

The invention relates to a method for measuring the curved profiles of edges such as the trailing edges of engine blades. For this purpose, a laser beam (4) impinges directly on a surface region, which is to be measured, of the edge. The laser beam intensity over the cross-section of the laser beam is locally defined by a radiation intensity matrix (5) between a laser beam and the edge, and the radiation intensity values are varied (1). The laser beam intensity reflected by the surface region (7) to be measured is detected row by row in conjunction with different radiation intensity values along the curvature of the edge to be measured, and a curved profile is determined from these measured values via a computer program. The method is particularly suitable for measuring sharp edges such as knife edges, cutting tool edges or engine blade edges.