Study on electronic compass based on MEMS 3D magnetoresistive sensor

WU Jian-jun; FENG Wei-zhong; YU Wei

doi:10.13873/j.1000-97872011.08.043

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Study on electronic compass based on MEMS 3D magnetoresistive sensor

更新时间：2025-09-11

- Study on electronic compass based on MEMS 3D magnetoresistive sensor
- Vol. 30, Issue 8, Pages: 83-85+88(2011)
- 作者机构：
  
  南京林业大学信息科学技术学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872011.08.043
  CLC： TP212.9
- Published：2011
- 稿件说明：
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[1]武建军,封维忠,于玮.基于MEMS三维磁阻传感器的电子指南针的研究[J].传感器与微系统,2011,30(08):83-85+88.

WU Jian-jun, FENG Wei-zhong, YU Wei. Study on electronic compass based on MEMS 3D magnetoresistive sensor[J]. 2011, 30(8): 83-85+88.
[1]武建军,封维忠,于玮.基于MEMS三维磁阻传感器的电子指南针的研究[J].传感器与微系统,2011,30(08):83-85+88. DOI： 10.13873/j.1000-97872011.08.043.

WU Jian-jun, FENG Wei-zhong, YU Wei. Study on electronic compass based on MEMS 3D magnetoresistive sensor[J]. 2011, 30(8): 83-85+88. DOI： 10.13873/j.1000-97872011.08.043.

摘要

介绍了一种基于MEMS的三维磁阻传感器和加速度传感器的电子指南针系统。相对于由两轴磁阻传感器制造的电子指南针

该系统能够有效补偿倾斜角产生的误差。重点介绍了该系统的测量原理、硬件设计、软件流程。通过中位置均值滤波、限幅滤波、一阶滞后滤波

最大误差控制在1°以内。实验结果表明:本系统可以满足于一般导航领域的要求。

Abstract

An electronic compass which based on accelerometer and MEMS 3D magnetoresistive sensor is introduced.Compared with the electronic compass which based on 2-axes magnetoresistive sensor

this system can effectively compensate the angle error.The principle of measurement

hardware design and software process are introduced.By the method of intermediate average filtering

limit filtering and first order lag filtering

the maximum error of the system is less than 1°.The experiment result shows that the system can meet the demand of common navigatation field.

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references

三轴磁阻电子罗盘设计 [J]. 马建仓,胡士峰,邵婷婷. 火力与指挥控制 . 2009(03)

AMR电子罗盘的设计及其误差补偿 [J]. 郑玉冰,章雪挺,刘敬彪. 杭州电子科技大学学报 . 2008(02)

流行集成电路程序设计与实例[M]. 西安电子科技大学出版社 , 杨振江, 2009

MCS-51单片机应用开发实用子程序[M]. 人民邮电出版社 , 边春远,王志强编著, 2005

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