To change this, Professor Arun Anand from Sardar Patel University in India visited the Laser Material Processing Laboratory of Professor Stefan Hierl at OTH Regensburg from May 5 to 11. Prof. Anand is an expert in the measurement technique known as phase-measuring deflectometry (PMD), which can detect even the smallest changes in refractive index quickly and cost-effectively. Since the refractive index depends on temperature, this method allows conclusions to be drawn about the temperature field inside a transparent material.
Together with Frederik Maiwald and Julian Schulze from Prof. Hierl’s team, a dedicated PMD measurement system was set up at the Parsberg Technology Campus. Initial tests yielded promising results, and further research is now planned to explore the use of this method for process monitoring in laser welding.
The visit of Prof. Anand was made possible by the Bavarian Research Foundation (PIZ-244-25) and the "Visiting Professorship Program" of the Bavarian State Ministry of Science and the Arts.
