Defect Detection System for Identifying Defects in Weld Seams

摘要

The disclosure relates to a defect detection system for identifying defects in weld seams. An exemplary system comprises a scanner device, which is mounted on a displacement device of a processing unit and which can be displaced by said unit over at least one weld seam that is to be examined. The scanner unit scans the weld seam using a predefinable frequency, each scanning sweep being correlated with a time signal and the time signal being used to record the point in time when at least one location containing defects is scanned. The system is equipped with an analysis module to determine the co-ordinates of the defects from the signals that are obtained by means of the scanning sweeps. The analysis module also stores the co-ordinates of the defects and transmits them to a localisation module. The localisation module determines the spatial arrangement of the defects of the weld seam by evaluating the speed profile of the displacement device during the scanning sweeps, the time signal that is assigned to the scanned location containing defects and the co-ordinates of the defects that are provided by the analysis module.