The undergraduate thesis deals with laser triangulation and reasons for scatter of measured welding trajectory. We used industrial robotic operating system with scanning head for welding on the fly. We made measurements changing two parametrs of scanning head layout. Program had been developed and used for characterization of welding trajectory. First parameter was vertical deviation between meter and center of measurng area. Deviation in z direction was between 0,022 mm and 0,12 mm. Second parameter was inclination around the edge of the meter. The maximum deviation was in y and z direction between 0,006 mm and 0,019 mm.
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