①轮径A;②轮缘厚度B;③踏面磨耗C;④轮辋厚度D;⑤轮辋宽度E;③擦伤深度F;⑦轮对内侧距G;⑧轮座轴径H;⑨轴头牌历史信息。2 传统的检测方法 传统的检测方法是利用专用轮径尺在轮对规定部位手工测量轮径值并记录,这种专用尺有制造误差,测量时因轮径值有变化,其变化范围达40mm,在测量原理上有误差,测量时有定位误差、操作读数误差等。 ① Wheel diameter A; ② rim thickness B; ③ tread wear C; ④ rim thickness D; ⑤ rim width E; ③ abrasion depth F; ⑦ wheel inner distance G; ⑧ wheel seat shaft diameter H; information. 2 traditional detection methods The traditional detection method is the use of special wheel diameter wheel in the provisions of the manual measurement of wheel diameter and record the wheel diameter, this special manufacturing error with the wheel diameter measurement changes, the scope of its variation of 40mm , There are errors in the measurement principle, positioning error when measuring, operation reading error and so on.