Traditional weld automatic tracking system can not meet requirements of welding process due to low precision,poor sensitivity,longer response time and high skill operation requirements to operator.

• 传统的螺旋焊管焊缝自动跟踪装置精度低,灵敏度差,响应时间长,对操作人员操作技能要求高,已不能满足焊接工艺的要求。