中文摘要：

旋转电弧传感器是焊缝自动跟踪系统中的关键部分,建立精确系统数学理论模型是准确识别焊炬姿态和焊缝左右偏差的前提.详细讨论了焊接电源、焊丝干伸长、焊接电弧、接头几何形状等关键因子对模型的影响,阐述了现有旋转电弧传感GMAW焊接系统数学理论模型的基本思路,提出进一步提高模型精度的改进策略,为获得更精确的旋转电孤传感数学理论模型打下基础.

英文摘要：

Rotating arc sensor is a critical component of the automatic seam tracking system,establishing the precise mathematical model is the premise of welding torch position and seam deviation being identified accurately in the automatic seam tracking system. The welding power source,welding wire extension,welding arc,connector shape which are influenced on the model are introduced in details,the current rotating arc sensing GMAW welding system mathematical model of the basic ideas is addressed,and the future of their improvement strategies are forecasted, that can lay the groundwork and provide a way to get a more accurate mathematical model of rotating arc sensing.