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日本钢管公司开发出在线磁漏通量缺陷探测系统，据称，这种探测系统可以探测出带钢中最小的内部缺陷（５×１０－４ｍｍ），适用于检测对缺陷敏感的材料，如制作罐头盒用的镀锡原板。该系统由１组沿带钢宽度方向排列的磁性传感元件、信号放大／处理装置和数据处理装置组成。磁
Nippon Steel Pipe Co., Ltd. has developed an online flux leakage detection system that is said to detect the smallest internal defect (5x10-4 mm) in the strip and is suitable for testing materials that are sensitive to defects such as fabrication Tin plate with tin cans. The system consists of a set of magnetic sensing elements arranged along the width of the strip, a signal amplification / processing unit and a data processing unit. magnetic