电涡流无损检测淬火钢轨踏面硬度定量分析  

Quantitative analysis of quenched rail surface hardness by eddy current nondestructive testing

作　　者：萨殊利[1] 肖春燕[1] 朱衡君[1] 李文洲[1] 

机构地区：[1]北方交通大学机械与控制工程学院,北京100044

出　　处：《铁道学报》2001年第3期33-36,共4页Journal of the China Railway Society

基　　金：铁道部科技开发项目!(2 0 0 0 G0 2 2 )

摘　　要：针对涡流无损检测淬火钢轨踏面硬度的定量分析来实现淬火钢轨质量保证预报问题 ,将电涡流理论与现代计算机图象处理和信号分析相结合 ,完成硬度测试模型建立。经不确定度分析 ,达到了工业上淬火钢轨踏面硬度检测± 1HRC精度的技术目标 。Aimed to realize the problem of quenched rail qualification forcast through quantitative analysis of quenched rail surface hardness by eddy current, and combined the eddy current theory with the computer image processing and signal analysis, the hardness testing model is established in this paper. Through uncertainty analysis, the testing precision of quenched rail surface hardness has met the requirements ±1 HRC of measurements in production, and the testing example is given.

关 键 词：电涡流无损检测 淬火钢轨 硬度 定量分析 图象处理 相位分析 钢轨踢面 

分 类 号：U213.42[交通运输工程—道路与铁道工程]