铁磁材料硬度电磁检测模型  

Electromagnetic Field Analytical Model for the Nondestructive Testing of Ferromagnetic Material Hardness

作　　者：肖春燕[1] 朱衡君[1] 齐红元[1] 萨殊利[1] 李文洲[1] 

机构地区：[1]北方交通大学机械与电子控制学院,北京100044

出　　处：《计量学报》2002年第4期294-298,共5页Acta Metrologica Sinica

基　　金：铁道部科技开发项目 (2 0 0 0G0 2 2 )

摘　　要：针对铁磁材料硬度无损检测问题 ,借助近代电磁理论 ,推导出含有复宗量贝塞耳函数的差动探头散射阻抗解析模型。将阻抗解析与铁磁材料硬度检测试验相结合 ,建立了用于钢轨硬度无损检测的电磁场数学模型 ,检测系统不确定度在Aiming at the electromagnetic nondestructive testing of ferromagnetic material hardness, the analytical mathematics model of differential probe scatter impedance is deduced, which includes complex Bessel function, by the modern electromagnetic theory. Combining impedance analytical function with testing experiment of ferromagnetic material hardness, electromagnetic field mathematics model has built, which is used in rail hardness nondestructive testing. System uncertainty is within the range of 1 HRC.

关 键 词：检测模型 电磁场 铁磁材料 无损检测 硬度 U^74淬火钢 电磁检测 钢轨 

分 类 号：TM27[一般工业技术—材料科学与工程]