| 摘要 |
A method and an apparatus (1) for rolling wheel deflection measurement. The apparatus comprises: A rolling wheel (4) to be moved along a measuring surface (2) in a first direction. A frame (6) extending essentially along said measuring surface (2) in said first direction from at least said rolling wheel (4). Four spaced apart range sensors (7, 8, 9, 10). Means for scanning in a first time interval a number of lines using each of said range sensors (7, 8, 9, 10), so as to get a corresponding number of virtual images, in which the pixel values represent distances. Dataprocessing means adapted for comparing and matching said virtual images, so as to identify corresponding regions, and for calculating a deflection value using matched pixel values of virtual images from said virtual images based on said identification corresponding regions. |
