| 基于LMS的环型TMR阵列传感器滤波算法设计 |
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| 引用本文： | 陈泽纯,石洪,赵聪,陈月.基于LMS的环型TMR阵列传感器滤波算法设计[J].电测与仪表,2022,59(11):194-200. |
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| 作者姓名： | 陈泽纯 石洪 赵聪 陈月 |
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| 作者单位： | 国网湖北省电力有限公司营销服务中心计量中心,国网湖北省电力有限公司营销服务中心计量中心,国网湖北省电力有限公司营销服务中心计量中心,黑龙江省电工仪器仪表工程技术研究中心有限公司 |
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| 基金项目： | 国家电网公司科技资助项目（521532200014） |
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| 摘 要： | 针对环型TMR传感器阵列测量电流时易受外界环境的干扰,提出一种磁阵列自适应测量方法。根据毕奥萨伐尔定律分析环型磁阵列的测量原理。提出了一种基于最小均方根(Least-Mean-Squares,LMS)方法,为磁阵列测得的磁场强度设计自适应滤波算法,即将某一段时间的传感器测量磁场作为输入,并过滤外界的杂散磁场信号,能够实现对外界磁场的自适应屏蔽。进行了数值仿真分析和搭建了实验平台,验证了所提方法的正确性及有效性。
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| 关 键 词： | 环型磁阵列 TMR 最小均方根 电流传感器 |
| 收稿时间： | 2021/6/28 0:00:00 |
| 修稿时间： | 2021/7/30 0:00:00 |
An adaptive measurement method for TMR circular array sensors |
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| Zechun Chen,Hong Shi,Cong Zhao and Yue Chen.An adaptive measurement method for TMR circular array sensors[J].Electrical Measurement & Instrumentation,2022,59(11):194-200. |
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| Authors: | Zechun Chen Hong Shi Cong Zhao and Yue Chen |
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| Affiliation: | Marketing Service Center Measurement Center of State Grid Hubei Corporation,Marketing Service Center Measurement Center of State Grid Hubei Corporation,Marketing Service Center Measurement Center of State Grid Hubei Corporation,Heilongjiang Electrical Instrument Engineering Research Center Co., Ltd. |
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| Abstract: | A magnetic array adaptive measurement method is proposed for TMR circular sensor arrays that are susceptible to interference from the external environment when measuring current. A design scheme for a TMR sensor is proposed and the influence of temperature, magnetic field and other factors on the measurement accuracy of the sensor is analysed by establishing a transfer function. A Least-Mean-Squares (LMS) algorithm-based filtering algorithm for magnetic array measurement is proposed, in which the measured magnetic field of the sensor for a certain period of time is used as input and the external spurious magnetic field signal is filtered to achieve adaptive shielding of the external magnetic field. |
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| Keywords: | Circular magnetic array TMR Least-Mean-Squares Current sensors |
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