【摘要】 阐述及时准确地测量机车车辆车轮踏面外形几何参数的必要性，重点介绍车轮外形参数静态检测设备和动态检测装置的技术原理、基本功能和应用效果。更多还原

【Abstract】 The necessity to measure geographic parameters of the wheel tread profile of rolling stock in time and correctly is expounded.The technological principles,basic functions and application effects of the static inspection equipment and dynamic inspection equipment for wheel profile parameters are mainly described.更多还原