Fischer, AndreasAndreasFischerStöbener, DirkDirkStöbener2024-09-182024-09-182019-07-041726-0604https://media.suub.uni-bremen.de/handle/elib/8284https://doi.org/10.26092/elib/3318A reliable in situ inspection of working rolls’ surface quality requires fast roughness measurements with >0.5 m2/min on a nanometer scale. A speckle-based measurement approach is realized using a high-speed pulse laser and FPGA-based image processing to inspect surface areas with a diameter of 1 cm without motion blur with 200 Hz. As a result, a roughness resolution below 0.5 nm is demonstrated under manufacturing conditions, which mainly results from light source intensity fluctuations. The surface quality inspection is finally validated on the rolling wheel in a reconditioning process to detect the tool roughness distribution and respective tool wear.enCC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives)https://creativecommons.org/licenses/by-nc-nd/4.0/Metrologyroughnessoptical600 Technik, Medizin, angewandte Wissenschaften::600 Technik::600 Technik, TechnologieText::Zeitschrift::Wissenschaftlicher Artikel10.26092/elib/3318urn:nbn:de:gbv:46-elib82848