METHOD OF AND WELDING PROCESS CONTROL SYSTEM FOR REAL-TIME TRACKING OF THE POSITION OF THE WELDING TORCH BY THE USE OF FIBER BRAGG GRATING BASED OPTICAL SENSORS

摘要

The present application is related to the estimation and/or the control of welding quality depending on time-based position information obtained by using a fiber bragg grating based optical sensor system (3) connected to the welding torch (2). The welding process parameters and the time-based position data of the torch (2) are received such that the mechanical structure of the torch (2) is not changed. Through the proposed system, a more precise correlation is established for estimating the welding quality by considering the spatial position of the torch (2) relative to the work piece (1) along with the weld operation parameters.