Design and Application of 3D Laser Profile Data Acquisition System

Abstract

In order to measure the trivial road deformation by the full—scale accelerated load testing, a theory to acquire 3D laser profile data with a single—point laser (2 μm) was proposed to design and develop a measuring instrument. The design and realization of the overall structure and software were discussed in detail. Moreover, the acquisition of 3D laser profile data and the method of graphic reconstruction as well as the measurement error of the instrument were investigated. Thus, 3D information of road surface was obtained by using this measuring instrument with an accuracy of