Geomagnetic sensor based on giant magnetoelectric effect
Geomagnetic sensor based on giant magnetoelectric effect
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DOI：
10.1063/1.2789391
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发表时间：
2007-09
影响因子：
4
通讯作者：
J. Zhai;S. Dong;Zengping Xing;Jiefang Li;D. Viehland
中科院分区：
文献类型：
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作者：
J. Zhai;S. Dong;Zengping Xing;Jiefang Li;D. Viehland
在这里，作者报告了一种新型的地磁场传感器的基础上的巨磁电效应的金属/压电纤维层压板，是包裹一个线圈。这些传感器可以相当精确地测量地球磁场和倾角的值。地磁场传感器不需要直流偏磁，由10 mA交流驱动。可以检测到小于10− 9 T的高灵敏度直流磁场变化和小于10− 5度的角倾角，这可能为小型全球定位设备提供了机会。
Here, the authors report a new type of geomagnetic field sensor based on the giant magnetoelectric effect in Metglas/piezoelectric-fiber laminates that are wrapped with a coil. These sensors can measure quite precisely the value of both the Earth’s magnetic field and its inclination. The geomagnetic field sensor does not require a dc magnetic bias and is driven by a 10mA ac. Highly sensitive dc magnetic field variations of less than 10−9T and angular inclinations of ⩽10−5deg can be detected, potentially offering opportunities for a small global positioning device.