METHOD AND APPARATUS FOR MEASUREMENT OF THE PROFILE GEOMETRY OF CYLINDRICAL BODIES

摘要

The invention relates to a method for measurement of the profile geometry of cylindrical bodies as measurement objects by means of a two-dimensional light suction process, in which a laser line in the form of a fan is imaged by means of at least one laser as a light section line on the surface of the body, and the beams reflected from the surface of the body are recorded by at least one area imaging camera, with the laser and the camera being arranged at a triangulation angle in the normal plane in the line of the cylinder axis. According to the method, the laser is pivoted about the cylinder axis away from the normal plane in order to measure the profile geometry, with the angle with respect to the normal plane being chosen such that the optical axis of the area imaging camera is located within the glancing angle range of the reflected beams with respect to the surface of the cylinder.