大学物理 ›› 2012, Vol. 31 ›› Issue (6): 57-57.
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杨春振[1] 李可然[2] 白立新[1]
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摘要： 地磁场非常微弱,约为10-5T量级,测量难度大、精确度低.本文探讨了新型坡莫合金各向异性磁阻传感器在地磁场测量上的应用,实验发现新型磁阻传感器在地磁场等极微弱磁场测量中具有操作简单,灵敏度高,精确性好等优点.实验除具有实际应用价值外,同时适合在高等学校大学物理基础实验中开设出相应的实验教学内容.
关键词: 磁阻传感器, 亥姆霍兹线圈, 灵敏度, 地磁场, 磁感应强度, 磁倾角, 大学物理实验
Abstract: Measurement of the earth-magnetic field is difficult and its exactness is low,because the earth-magnetic field is so weak and about 10-5 T.This article discusses about the application of a new anisotropic magnetoresistive sensors for measuring the earth-magnetic field.It is found form the experiment that the new magnetoresistive sensor has the advantages of simple operation,high sensitivity and exactness when the measuring of earth-magnetic field is applied.Except its application value,the experiment is also suitable for the college physical experiment.
Key words: magnetoresistive sensors, Helmholtz coil, sensitivity, earth-magnetic field, magnetic induction intensity, geomagnetic inclination, college physical experiment
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杨春振[] 李可然[] 白立新[]. 新型各向异性磁阻传感器在地磁场测量中的应用[J]. 大学物理, 2012, 31(6): 57-57.
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