光学精密工程2017，Vol.25Issue(9)：2339-2346,8.DOI:10.3788/OPE.20172509.2339
多读数头混合布局测角误差抑制方法
Suppression method for angle measurement error of mixing-layout multiple reading head
摘要
Abstract
Under the premise of not increasing size of code , layout form for reading head of angle measurement sensor was researched to develop high-precision angle measurement sensor with miniaturization . Through harmonic analysis for angle measurement error ,the suppression principle of layout for multiple reading head to angle measurement error was deducted and analyzed in detail .On the basis of intensive study on various typical layout modes for multiple reading head ,a mixed layout method for reading head combined with odd-number head and even-number head was proposed to eliminate more and higher order errors and improve accuracy of angle measurement sensor .The experiment result show s that at the time of adopting layout form for uniform distribution of three ,four and six reading heads , angle measurement accuracies of angle measurement sensor are respectively 15 .44″,9 .72″and 8 .96″;when adopting optimized layout form of six reading heads ,angle measurement accuracy can reach 7 .7″.Thus it can be concluded that optimized layout for multiple reading head can effectively restrain angle measurement error and improve measurement accuracy .关键词
角度测量误差/测角传感器/多读数头/谐波分析/布局方式Key words
angle measurement error/angle measurement sensor/multiple reading head/harmonic analysis/layout form分类
机械制造引用本文复制引用
张文颖,劳达宝,周维虎,江炜,朱浩然..多读数头混合布局测角误差抑制方法[J].光学精密工程,2017,25(9):2339-2346,8.基金项目
国家重大科学仪器设备开发专项资助项目(No.2016YFF0100700) （No.2016YFF0100700）
青岛市光电智库联合基金资助项目(No.GDZK-2017-05) （No.GDZK-2017-05）
