AMR电子罗盘的设计及其误差补偿

该文介绍了磁阻式电子罗盘的工作原理，设计了一种利用磁阻传感器和加速度计测定航向角、俯仰角、侧滚角的电子罗盘测量系统。在分析电子罗盘误差形成的基础上，提出了相应的补偿方法。实验结果表明，利用这些补偿方法，可有效的减低由制造和安装等所引起的误差。同时，这种补偿方法也适用于其它3轴传感器系统。

Design and Errors Compensation of Electronic of AMR Compass

The principle of electronic compass has been presented, and a new design of a digital compass based on anisotropic magneto-resistive （AMR） sensors and accelerometers has been given. The developed device gives information about actual azimuth, roll, and pitch. The paper analyses errors of electronic compass firstly, and then, methods to these errors are presented. From the experimental results we can know that the production error and installation error can be reduced efficiently by compass errors compensation method. Compensation methods are not suitable only for electronic compass but also for any other sensor triplet systems.