Design and Characterization of a Multicore Residence Times Difference (RTD) Fluxgate Magnetometer Based on Composite Amorphous Wire Arrays

IF 1.9 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Magnetics Pub Date : 2025-07-15 DOI:10.1109/TMAG.2025.3588886

Mingyu Li;Qianzhen Su;Long Wang;Junkai Wang;Hao Zhang;Zepeng Wang;Bo Zhang;Xiaolong Wen;Jianhua Li

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Abstract

Amorphous wires show the advantages of high permeability, low coercivity, and low hysteresis loss; therefore, they are suitable as magnetic cores for fluxgate magnetometers. In residence times difference (RTDs) fluxgate magnetometers, the application of amorphous wires as magnetic cores has primarily focused on the use of a single wire. To achieve higher precision in weak magnetic field detection, further improvement in resolution is required. In this article, we designed a multicore RTD fluxgate magnetometer based on composite amorphous wire arrays. We tested RTD fluxgate magnetometers with different numbers of amorphous wires (one, two, three, and six wires) as the magnetic cores. The test results showed that as the number of amorphous wires in the magnetic core increased, the resolution of the RTD fluxgate magnetometer improved from 5.15 to 0.17 nT, demonstrating that increasing the number of wires in the magnetic core effectively enhanced the resolution of the RTD fluxgate magnetometer.

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基于复合非晶线阵列的多芯驻留时差磁通门磁强计的设计与表征

非晶丝具有高磁导率、低矫顽力、低磁滞损耗等优点；因此，它们适合作为磁通门磁强计的磁芯。在停留时差磁通门磁强计中，非晶导线作为磁芯的应用主要集中在单线的使用上。为了达到更高的弱磁场检测精度，需要进一步提高分辨率。本文设计了一种基于复合非晶线阵列的多芯磁通门磁强计。我们测试了RTD磁通门磁强计不同数量的非晶导线（一、二、三、六线）作为磁芯。测试结果表明，随着磁芯内非晶导线数量的增加，RTD磁通门磁强计的分辨率从5.15 nT提高到0.17 nT，说明增加磁芯内导线数量有效提高了RTD磁通门磁强计的分辨率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Magnetics 工程技术-工程：电子与电气

CiteScore

4.00

自引率

14.30%

发文量

565

审稿时长

4.1 months

期刊介绍： Science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage. The IEEE Transactions on Magnetics publishes scholarly articles of archival value as well as tutorial expositions and critical reviews of classical subjects and topics of current interest.