测量轨道项面纵向不平顺对监测轨道磨损及评价打磨效果具有重要作用。将轨道顶面纵向轮廓视为二维波形，提出一种测量该波形的简便方......

Eddy current testing is a nondestructive testing method, which is used to detect discontinuities and defects in conducti......