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旋转坐标系法测量地磁场水平分量
Measurement of the horizontal component of the earth magnetic field by rotating coordinate method
【摘要】 地磁场是一个相对较小的矢量,本文使用两个霍尔传感器,构建二维坐标测量系统,通过旋转坐标系的方法测量地磁场的水平分量,并通过矩阵计算推导出理论结果,实验证明了实验和理论结果是符合的,测量青岛地区地磁场水平分量大小为3.16×10-5T,相对误差0.3%.
【Abstract】 The earth magnetic field is a small vector.A system including two sensors of Hall-effect is build to measure the horizontal component of the earth magnetic field using the rotating coordinate method.In addition,it deduces theoretical result with matrix calculation which correspondes to experiment.The result of measurement of Qingdao is 3.16×10-5 T and the relative error is 0.3%.
【关键词】 地磁场水平分量;
霍尔传感器;
旋转坐标系;
【Key words】 horizontal component of the earth magnetic field; Hall-effect sensors; rotating coordinate system;
【Key words】 horizontal component of the earth magnetic field; Hall-effect sensors; rotating coordinate system;
【基金】 国家大学生创新性实验计划项目(101042538)资助
- 【文献出处】 大学物理 ,College Physics , 编辑部邮箱 ,2012年11期
- 【分类号】P318.6
- 【下载频次】226