基于倾斜补偿和磁补偿的三维电子罗盘研究  

Research on a three-dimension electronic compass based on tilt compensation and magnetic compensation

作　　者：孙倩[1] 付虹[1] 

机构地区：[1]长春工业大学电气与电子工程学院,吉林长春130012

出　　处：《传感器世界》2015年第8期14-17,共4页Sensor World

摘　　要：将传统的水平电子罗盘通过倾斜补偿算法延伸至空间电子罗盘,再经过椭球拟合校准法对罗盘的硬磁、软磁、比例系数及未对准误差进行补偿,形成完整的电子罗盘使田规范,最后,实物对比实验给出基于HMC5883磁阻传感器与ADXL345捷联的三维电子罗盘精度为1°。In this paper, a traditional electronic compass is developed into a three-dimension compass with the tilt compensation algorithm. Then, the ellipsoid fitting compensation algorithm is used to calibrate hard-iron, soft- iron, scalar-factor and misalignment error in the compass. So an application specification of electronic compass is formed in full. Finally the experiments of three-dimension electronic compass prototype based on HMR3000 and HMC5883 are done and the results show that the accuracy of compass is within 1°.

关 键 词：电子罗盘 倾斜补偿 磁补偿 椭球拟合 

分 类 号：TH76[机械工程—仪器科学与技术] TP212[机械工程—精密仪器及机械]