辊形测量中采样策略的研究

采用误差分离技术,在均匀采样的前提下进行辊形测量。本文对辊形测量中的采样策略做了深入的研究。采样策略包括采样点数的选择和传感器间距的设定。不但从理论角度,应用概率论方法求得了采样点数的大小范围,还考虑了后续滤波处理时参数设定对采样点数的影响。在设定传感器间距时,从曲线插值和统计分析这两个方面进行了综合考虑。最后得出了最优的采样策略。

Sampling Strategy in the Profile Measurement of Mill Roll

The profile of mill roll is measured with the error separation technology and uniform sampling method. In this paper, the important sampling strategy in the measurement process is investigated. The strategy includes how to choose the sampling numbers and set the range interval between sensors. Not only is the sampling numbers determined with probability theory, but also the influence of parameter setting in the following filtering process is considered. When determining the range interval between sensors, the effects of it on the spline interpolation and statistical process are also studied. Finally, the optimum sampling strategy is found.