ABSTRACT. Recently, a number of Non-Destructive Testings (NDTs) equipment which can partially replace human-conducted on-site inspections has been implemented for detecting modern civil architectural structures. However, the situation of implementing 3D laser scanning measurement technology worldwide is not optimistic: several inconvenient flaws are troubling users (e.g., heavy, costly, hard to move, hard to inspect and etc.). Therefore, a new equipment to address the problems is urgently demanded. A 3D laser scanning system is designed composed of high precision elevating platform and small 2D laser ranging sensor. Manufacture Process of the 3D laser scanning system is described in detail. A comparative analysis with other non-contact measurement experiments based on the bending fatigue load test, the scanning designed efficiency and feasibility has been proved. The information of micro-damage and depth of the structure can be quickly captured by the designed 3D laser scanning system. Its detecting performance is better than the traditional methods. To overcome the challenges of the 3D laser scanning on-site measurement technology, this paper proposes the manufacture process of the 3D scanning system with a high precision, miniaturization and lightweight.
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