CAJ | 학술논문

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。
침대광책전감기재고당수공궤상급정밀가공영역응용중적고정도세분화쾌속근종적문제，제출일충기우예측이론적광책위이신호정밀세분적신방법。운용시간신식분석화예측공간위치적시공전환사상，근거광책각선재공간적균균성여시간서렬적대응관계구건예측세분모형，완성료광책신호재시간화공간상적예측세분。동태실험표명，채용해모형진행예측세분，최대세분배수위400배，예측오차위±3.5″，실현료대광책신호적고정도세분。
In order to improve the situation of high precision subdivision and displacement tracking speed of the grat-ing 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 be-tween 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.