The development and application of an original 3D laser scanning: a precise and nondestructive structural measurements system

• Main Authors: Kexin Li, Jun Wang, Dawei Qi
• Format: Article
• Language: English
• Published: Gruppo Italiano Frattura 2020-01-01
• Series: Frattura ed Integrità Strutturale
• Subjects: structure detection; 3 d laser scanning; nondestructive testing; digital image process; measurement on site
• Online Access: https://www.fracturae.com/index.php/fis/article/view/2658

Recently, a number of non-destructive testings equipment (NDTs) which can partially replace human-conducted onsite 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 is troubling users (e.g., heavy, costly, hard to move, hard to inspect and etc.). Therefore, a new equipment to fix those problems is urgently demanded. This paper aims to thoroughly analyze the issue and then develop a feasible. A 3D laser scanning system composed of high precision elevating platform and small 2D laser ranging sensor is designed. Manufacture Process of 3D laser scanning system is describes in detail. Based on the bending fatigue loading test, the scanning designed efficiency and feasibility had been proved by comparing and analyzing traditional measurement results. The designed 3D laser scanning system can quickly capture the information of micro-damage and depth of the structure. Its detecting performance is better than the traditional methods. To overcome the challenges of the 3D laser scanning on-site measurement technology, this article proposed the manufacture process of the 3D scanning system with a high precision, miniaturization and lightweight.