基于数字射线成像的焊缝缺陷检测  

Inspection of weld imperfection base on the digital radiography

作　　者：高岩[1] 孔凡琴[1] 

机构地区：[1]北京航空航天大学现代无损检测中心,北京100083

出　　处：《焊接技术》2003年第2期13-15,共3页Welding Technology

基　　金：总装备部预研项目"激光焊接结构无损检测技术研究"(41318-0310)

摘　　要：提出了一种基于数字射线成像(DR)的焊缝图像的处理方法。依据射线衰减的指数规律和体现缺陷特征的处理原理,建立了提取、放大焊缝中缺陷信息的数学模型,在这些数学模型的指导下改进获取的焊缝图像,便可清晰准确地辨别出缺陷,达到检测目的。This paper briefly presents a method of inspecting the welding line o n the base of the digital radiography. If we got the characteristics and amplifi ed them according to the mathematical models in this paper, we can inspect the w elding line accurately. Those models was impressed being based on the rules of X-ray-penetration and image-processing.

关 键 词：焊缝 指数衰减 动态范围 反锐化掩摸滤波 数字射线成像 图像处理 无损检测 

分 类 号：TG441.7[金属学及工艺—焊接] TG115.28