Speakers
Abstract: Geometric errors of each axis are inherent in each precision machine. Most of the commercial instruments can only measure one kind of error each time. The longer the measurement takes the worse the uncertainty would cause. Techniques of multi-degree-of-freedom (MDOF) measurement systems are thus developed by many researchers to reduce the measuring time. However, most systems are still too complicated to practical applications. This report presents a modular design concept of positioning error, straightness errors and angular errors. Various combinations of selected modules can configure different DOF measurement functions, from 3DOF to 6DOF. Applications in machine tools and measuring machines have shown the capability and flexibility of the developed MDOF laser measuring systems not only in volumetric accuracy assessment, but also in accuracy improvement by error compensation strategies.
Biography: Kuang-Chao Fan received his PhD degree in mechanical engineering from The University of Manchester Institute of Science and Technology in 1984. He worked as a professor at National Taiwan University until 2015. He has been a professor at Dalian University of technology since 2016, and the Cheung Kong Scholar at Hefei University of Technology since 2001. He is a Fellow of SME and ISNM. He has published more than 200 journal papers and 250 conference papers, and holds more than 40 national and international patents. His research interests include precision measurement theory and technology, micro-nano coordinate measuring machine and precision of NC machine tool.