文中介绍了一种以双线阵CCD为传感器 ,激光二极管为光源的主动式的设定轨迹焊缝的高精度CCD跟踪系统。此跟踪系统是一种智能形的成像探测器。它对焊缝的识别精度为35 μm/ 10mm ;对设定轨迹焊缝的识别精度高于 3.5 μm/ 10mm .此跟踪系统具有对其金属板坯表面的光学性能、角度变化包容性强和抗强光的特点 In this paper, a high precision CCD tracking system with active linear locus weld with dual linear CCD as sensor and laser diode as light source is introduced. This tracking system is a smart imaging probe. It has a weld seam identification accuracy of 35 μm / 10 mm and a set of weld seam recognition accuracies of greater than 3.5 μm / 10 mm. The tracking system has optical properties for its metal slab surface, is angularly inclusive and resistant Glare characteristics