铁路车辆承载鞍鞍面内弧半径测量系统的研究

Research on Radius Measuring System of the Arc of Railway Saddle

阐述了用线激光三角法进行铁路车辆承载鞍内弧半径测量的方法,提出了一种可行的标定方案,通过计算得到测量系统的参数初值,并由此确定标定点的选取,通过三坐标机的探针在平台上移动来获取标定点的坐标,得到二维标定表,利用插值获得承载鞍内弧曲面的坐标,由此拟合出内弧轮廓的方程并来求得承载鞍的半径。

Using linear laser in triangulation to measure the surface 3-D profile is a fast and available method in the product measuring,in this paper,we need to measure the radius of the saddle from the railway.we bring up an available planar calibration method to simplify the parameter calculation of the traditional one,we use three coordinate measuring machine to get the coordinates of the point which are chosen to build the 2-D calibration,and by interpolation,we can get the coordination of the inside arc of the ...