Construction-light of linear CCD receiving astigmatic light is used to decrease the interference from the surface of workpiece to sensor in the auto-tracking system of submerged arc welding.

• 针对埋弧焊自动跟踪系统，采用线阵CCD接收散射光信号的光路结构，有效地减小了工件表面状况对传感器检测信号的干扰，着重介绍了埋弧焊自动跟踪系统的主要组成以及工作原理。