Computed Laminography Imaging Inspection Method for Aeronautical Plate and Shell Components
Plate and shell components have become more and more popular in aeronautics industry. It is a key problem to make sure the high-reliability of these components. Industrial computed tomography (ICT) is a powerful testing and measurement tool. But conventional ICT can not execute the effective tomography imaging of plate and shell components. We researched computed laminography (CL) technique based on the cone-beam X-ray tilt scan and the algebraic reconstruction technique (ART) to solve this problem. The projection pre-processing method based on the projection convex on sets(POCS) and the non-local means post-processing method based on the similarity between different regions have been discussed. An experiment system based on a-si flat panel detector has been founded. The CL imaging experiment of aeronautical aluminum plate has been executed successfully. The validity of this method was verified by the results of experiments.
plate and shell components computed tomography computed laminography algebraic reconstruction technique
FU Jian LI Bin Xiao Yingchun Zhou Zhenggan ZHOU Xingyu ZHU Hao
School of Mechanical Engineering and Automation, Beijing Univ.of Aero.&Astro., Beijing, China, 10019 School of Mechanical Engineering and Automation, Beijing Univ.of Aero.&Astro., Beijing, China, 10019 Aircraft Strength Research Institute of China, Xian 710065, China
国际会议
第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)
重庆
英文
1932-1935
2009-08-01（万方平台首次上网日期，不代表论文的发表时间）