四柱式焊缝跟踪涡流传感器及其应用  

Four-Test-Winding Eddy Current Sensor for Seam Tracking and Its Application

作　　者：吴红杰[1] 齐铂金[1] 吴鑫[1] 

机构地区：[1]北京航空航天大学机械工程及自动化学院

出　　处：《北京航空航天大学学报》2001年第5期600-603,共4页Journal of Beijing University of Aeronautics and Astronautics

摘　　要：研制了一种新型的四柱式焊缝自动跟踪用涡流传感器 .传感器激励线圈在工件中感应出涡电流 ,利用测量线圈检测涡流的大小以获得焊缝位置信息 ,可以检测出薄板对接焊缝横向和纵向位置信息 .它具有非接触、尺寸小、灵敏度高、响应速度快、并可以用于非铁磁性材料的特点 ,已成功地应用于焊接自动跟踪系统 .对其原理、传感器探头、信号处理方法。A four test winding eddy current sensor for seam tracking was introduced to improve the accuracy of automatic seam tracking system for sheet butt joint. Both horizontal and vertical deviation information can be gained from testing the eddy current induced by the excitation winding. In addition to advantages such as non touch with work pieces, high sensitivity and rapid response , the sensor is also suitable for non magnetic material. An automatic seam tracking system based on the eddy current sensor has been developed. The principle ,processing circuit and experiment results of the system were presented in detail.

关 键 词：涡流检验 焊缝跟踪装置 自动焊 对接焊 涡流传感器 薄板对接接头 焊缝 位置 

分 类 号：TG441.3[金属学及工艺—焊接] TP212[自动化与计算机技术—检测技术与自动化装置]