Method for contactlessly and dynamically detecting the profile of a solid body

A method for contactlessly and dynamically detecting the profile (P) of a solid body, in particular for the purpose of determining wear occurring on the solid body, the method comprising the steps of:

• generating at least one light beam by a laser device and expanding the light beam to form at least one linear light band, projecting the light band onto at least one area of the surface of the solid body, moving the solid body past the laser device, and focusing the reflected light from the area of the surface of the solid body in an imaging device, whose optical axis is at a fixed triangulation angle (φ) to the direction of projection of the laser device and which is arranged at a fixed base distance (B) from the laser device, detecting the light reflected at a frequency (f) that is high by comparison with a speed of movement of the solid body by means of a planar light receiving element outputting signals from the light receiving element as a function of the triangulation angle (φ) and the base distance (B) by means of trigonometric relations and in combination with correction values (Kv) determined in accordance with the speed of movement of the solid body, obtaining with a data processing device measured values (zB) of the profile (P) using the signals from the light receiving element, and storing the measured values (zB) in the data processing device as a profilogram (PG).