角位置测量误差补偿方法研究  

Study on Error Compensation of Angular Position Measurement

作　　者：张功[1] 张晓飞[1] 王昱峰[1] 曹玉梅[1] 赵健[1] 

机构地区：[1]北京航天计量测试技术研究所,北京100076

出　　处：《测试技术学报》2016年第4期353-357,共5页Journal of Test and Measurement Technology

基　　金：国防军工计量科研计划资助项目(JTAL11607)

摘　　要：为提高精密转台测角精度,提出了两种测角误差补偿算法.在分析了多面棱体校准原理基础上提出了基于误差平均的线性补偿方法,并给出了补偿计算表达式.另一种方法通过分析测角误差具有周期特性,利用傅里叶级数对误差值进行计算求解到谐波幅值较大的阶次进行反向补偿.通过实验案例对两种算法的补偿效果进行了验证.结果表明:两种补偿算法均可大幅提高转台位置精度,可满足项目技术协议中对角位置精度的要求,最后针对两种方法的优缺点一并进行了论述.In order to improve the measurement accuracy of the precision turntable,two kinds of error compensation algorithm were put forward.Linear compensation method based on the average error was proposed after analyzing the prism calibration principle and compensation calculation expression was also given.After finding the angle measurement error has a periodic characteristic,error values were calculated by using Fourier series and used the larger harmonic amplitude to compensate reversedly.The effects of the two compensation algorithms was validated though experiments.The results shows that the two compensation algorithm could substantially increase the position accuracy of the turntable,which could meet the angular position accuracy requirementsin the technical agreement.At the end,The advantage and disadvantage of these two methods are also listed in this paper.

关 键 词：精密转台 位置精度 误差补偿 角位置测量 

分 类 号：TP394.1[自动化与计算机技术—计算机应用技术]