experimental data

Conventional surface topography measurement techniques exhibit limitations in accuracy, efficiency, and adaptability to varying environmental conditions, particularly when applied to large-scale parts. This article presents a novel automated surface topography measurement approach for large-scale parts, which integrates a mobile robot with a laser tracker to achieve high-precision surface topography measurement automatically by following a user-programmed measurement route. The proposed three-degree-of-freedom measurement robot uses the HTC VIVE positioning system to achieve closed-loop omnidirectional movement. The trajectory tracking accuracy can reach within 0.8 mm. The experimental results show that the proposed system can acquire micron-level surface topography information of flat granite sample with sub-millimeter spatial resolution. It also has been verified to have good repeatability through multiple repeated measurement experiments.