平面电子罗盘的误差分析及补偿方法  

Error Analysis and Compensation of Plane Electronic Compass

作　　者：马成瑶[1] 钱晋武[1] 沈林勇[1] 章亚男[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072

出　　处：《上海大学学报（自然科学版）》2009年第2期186-190,共5页Journal of Shanghai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(50075050);上海市科委重点科技攻关资助项目(021111115);上海市重点学科建设资助项目(Y0102)

摘　　要：介绍平面电子罗盘的工作原理,分析平面电子罗盘在安装和工作中可能存在的误差及其来源。分析罗差的产生和构成,在此基础上构造罗差方程并应用最小二乘法进行罗差补偿。通过这种补偿,电子罗盘的最大误差降到1°以内。实践证明,这种罗差补偿方法具有一定的普遍应用价值。The principle of plane electronic compass is introduced, and the possible error and the error sources are analyzed. The deflection caused by local magnetic influence, for both the source and components, is analyzed. Based on the study, a deflection equation is obtained. The least square method is used for compensation, resulting in a maximum azimuth error of less than 1° so that the accuracy is increased. The results indicate that the methods of compensation can be widely used in similar applications.

关 键 词：内窥镜机器人 电子罗盘 误差分析 罗差补偿 最小二乘法 

分 类 号：TH712[机械工程—测试计量技术及仪器]