中文摘要：

针对光栅传感器在高档数控机床及精密加工领域应用中的高精度细分和快速跟踪的问题,提出一种基于预测理论的光栅位移信号精密细分的新方法。运用时间信息分析和预测空间位置的时空转换思想,根据光栅刻线在空间的均匀性与时间序列的对应关系构建预测细分模型,完成了光栅信号在时间和空间上的预测细分。动态实验表明,采用该模型进行预测细分,最大细分倍数为400倍,预测误差为±3.5″,实现了对光栅信号的高精度细分。

英文摘要：

In order to improve the situation of high precision subdivision and displacement tracking speed of the grating sensor existing in applications of high-end CNC machine tools and precision machining,a new method of precision subdivision of grating displacement signal based on forecast theory is proposed. According to the correspondence between the uniformity of grating lines in space and time sequences,use the thinking of time-space transformation,which includes analysis of time information and prediction of the spatiallocation,to build models of predictive subdivision.The dynamic experiments prove that maximum subdivision number can achieve 400 and the prediction error is ±3.5″when the model is used to predict subdivision in circular grating,and the high precision subdivision of the grating signal is achieved.