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基于四次谐波选择法的磁通门传感器分析
引用本文:李菊萍,刘诗斌,郭博,刘雨鑫.基于四次谐波选择法的磁通门传感器分析[J].传感技术学报,2011,24(10):1412-1415.
作者姓名:李菊萍  刘诗斌  郭博  刘雨鑫
作者单位:西北工业大学电子信息学院;
基金项目:国家自然科学基金面上项目(60874101)
摘    要:采用分段折线近似磁滞回线,分析了矫顽力对磁通门输出的影响,通过理论推导得到各偶次谐波灵敏度解析表达式.比较了二次谐波选择法和四次谐波选择法灵敏度,量程和非线性度.详细讨论了四次谐波的适用条件.研究结果表明选取四次谐波还是选取二次谐波,不仅取决于激励磁场与饱和磁场强度比值,还取决于矫顽力与饱和磁场强度比值.研究结果对实际...

关 键 词:磁通门传感器  磁滞回线  矫顽力  谐波选择法

Analysis of 4nd harmonic fluxgate magnetometer
LI Juping,LIU Shibin,GUO Bo,LIU Yuxin.Analysis of 4nd harmonic fluxgate magnetometer[J].Journal of Transduction Technology,2011,24(10):1412-1415.
Authors:LI Juping  LIU Shibin  GUO Bo  LIU Yuxin
Affiliation:LI Juping,LIU Shibin,GUO Bo,LIU Yuxin(College of Electronics and Information,Northwestern Poly technical University,Xi ' an 710072,China)
Abstract:Using subsectional linearized hysteresis model,the effect of coercivity on the output is analyzed,and even harmonics of the fluxgate output signal are obtained.The sensitivity,linear range,and nonlinearities of second harmonic were compared with that of fourth-order harmonics.Applicable conditions of fourth-order harmonic is discussed in detail.The analysis shows that choosing second harmonic or fourth harmonic is not only dependent on the ratio of the amplitude of excitation magnetic field to the saturatio...
Keywords:fluxgate  hysteresis  Harmonic selection
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