Experiment results show that the control system has good characteristics for on-line control of bead width in GTAW condition.
试验表明，该系统具有良好的控制特性，能获得较满意的控制效果。
It is necessary to extract molten pool geometrical parameters in real time or to extract back bead width off-line either in seam tracking or in penetration control.
不论熔透控制还是焊缝跟踪，都需要实时或离线提取焊接熔池正面或反面的几何参数。
The measurable spreader may evenly drop beads, the width of bead dropping can be adjusted optionally.
定量式散布器落珠均匀，散珠宽度任意调整。
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