METHOD FOR DETERMINING A CLOSED TRAJECTORY BY MEANS OF A LASER AND A LASER LIGHT SENSOR AND APPARATUS FOR DETERMINING A CLOSED TRAJECTORY

摘要

The present invention relates to a method for determining a closed trajectory curve (10) by laser (12) and a laser light sensor (14) having a flat field of view (16), wherein the method comprises the steps A to E. The present invention further relates to an apparatus for determining a closed trajectory curve (10). The method comprises the following steps: (A) arrangement of the field of view in a circular cylindrical bore or in a circular cylindrical opening of a body and conveying of the field of view into a first position; (B) irradiation of the field of view with a laser light beam generated by the laser and recording of the X coordinate and Y coordinate of the position of the laser light spot of the laser light beam that the laser light spot assumes in the field of view; (C) conveying of the field of view in temporal succession into at least two further positions, irradiation of the field of view with the laser light beam in each of the further positions, and recording of the X coordinate and Y coordinate of the position of the laser light spot of the laser light beam that the laser light spot assumes on the field of view in each of the further positions; (D) assignment of zero degrees to the angle value of the X coordinate and Y coordinate recorded in the first position of the field of view (16); (E) determination of the closed trajectory curve (10) by means of the X coordinate recorded in step (B) and (C) and/or the Y coordinate recorded in step (B) and (C).