Meta torch a universal seam tracking system for arc welding and similar applications

Describes the MetaTorch sensor system which uses standard components such as CCD cameras, laser diodes and electronic pre‐processing hardware to determine the location of objects and features with the help of the structured light principle. Examines the sensor system’s four main parts: the sensor head, the data acquisition board, the software and the interface to the robot or handling machine controller. The initial application was as an arc welding tracking system but has expanded to a variety of feature detection or feature following tasks including gluing, seam sealing and car seat trimming.