主动红外技术在实时在线焊缝检测系统中的应用  

THE APPLICATION OF ACTIVE INFRARED TECHNOLOGY EAL-TIME AND ON-LINE WELD METAL DETECTION

作　　者：蒋金鹏[1] 丁国清[1] 颜国正[1] 周昀[1] 

机构地区：[1]上海交通大学电子信息学院820所,上海200030

出　　处：《红外与毫米波学报》2003年第6期406-410,共5页Journal of Infrared and Millimeter Waves

摘　　要：从焊缝的本质入手 ,研究焊接过程中焊缝的显微组织和化学成分的变化 ,进而探讨这些变化对主动红外反射图像的影响 .通过理论和实际的分析 ,得出主动红外技术能很好地应用于工业焊缝的检测 .本文提出的检测方法主要是针对实际的工业应用场合 ,具有快速、高精度的特点 .检测精度为 0 .1mm .在PC 奔 70 0的计算机上 ,整个算法图像的分割速度为 0 .0 2s.Starting with the nature of welding seams, the artical studiws Changes of the microstructures and chemical components of welding seams duning the process of welding, then discuss the effects of these changes on active infrared images of reflection. Through theoretical and experimental analyses, it is well known that active infrared technology can be applied in the investigation of industrial welding seams. The method put forth in the article mainly aims at the practical application of industries, and is characterized by rapid, of high precision, on-line in real time. The precision is up to 0.1 mm. It takes only 0.02s to segment an active infrared image on a P-700 personal computer.

关 键 词：主动红外技术 焊缝检测系统 图像处理 实时检测 图象分割 CCD 图像定标 

分 类 号：TG441.7[金属学及工艺—焊接] TN219[电子电信—物理电子学]