多读数头混合布局测角误差抑制方法

发布时间：2018-04-18 21:47

本文选题：角度测量误差 + 测角传感器　；参考：《光学精密工程》2017年09期

【摘要】：在不增大码盘尺寸的前提下,对测角传感器读数头的布局展开研究,以研制小型化高精度的测角传感器。本文基于测角误差的谐波分析结果,详细推导和分析了多读数头布局对角度测量误差的抑制原理。通过对几种典型多读数头布局方式进行深入研究,提出一种采用奇数头和偶数头相结合的读数头混合布局方式,以消除更多更高阶次误差,提高测角传感器的精度。实验结果表明,当采用三个、四个和六个读数头均匀布局形式时,测角传感器的测角精度分别为15.44″、9.72″和8.96″;当采用六个读数头优化布局的方式时,测角精度可达到7.7″。上述结果说明多读数头优化布局可有效抑制测角误差,提高测量精度。
[Abstract]:On the premise of not increasing the size of the code plate, the layout of the reading head of the angle sensor is studied in order to develop a miniaturized and high precision angle measuring sensor.Based on the harmonic analysis results of angle measurement error, this paper deduces and analyses in detail the principle of suppressing angle measurement error caused by the layout of multiple readout heads.Based on the deep study of several typical multi-head layouts, this paper proposes a hybrid layout of reading heads with odd and even heads to eliminate more and higher order errors and improve the accuracy of angle sensors.The experimental results show that when three, four and six readout heads are used in uniform layout, the angle measuring accuracy of the angle sensor is 15.44 "9.72" and 8.96 ", respectively, and the angle measurement accuracy can reach 7.7" when the six readout heads are adopted to optimize the layout.The above results show that the optimal layout of multiple readout heads can effectively suppress the angle error and improve the measuring accuracy.
【作者单位】：长春理工大学光电工程学院;中国科学院光电研究院;中国科学院大学;长春理工大学电子信息工程学院;
【基金】：国家重大科学仪器设备开发专项资助项目(No.2016YFF0100700) 青岛市光电智库联合基金资助项目(No.GDZK-2017-05)
【分类号】：TH741.23;TP212

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