铁路珠增强维冈电线中的磁相互作用通过第一阶反转曲线进行评估
Chao Yang1, Liansong Guo1, Guorong Sha1
1School of Electrical Engineering, Nanjing University of Industry Technology, 1 Yangshan North Road, Nanjing 210023, China.
Materials (Basel, Switzerland)
|October 16, 2025
概括
铁矿珠通过增强磁化逆转来提高维冈传感器性能,从而使自动供电物联网设备的脉冲电压和能量输出显著提高.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
背景情况:
- 维冈传感器对于自动供电的物联网 (IoT) 节点至关重要,在没有外部电源的情况下产生电压脉冲.
- 将铁矿珠连接到Wiegand电线端子上会增加脉冲电压输出,但底层的磁力机制尚不清楚.
研究的目的:
- 为了研究微观磁力机制,其中铁珠附件提高维冈传感器的性能.
- 为了分析费里特珠对磁化逆转的影响,巴克豪森跳跃,维冈电线中的能量输出.
主要方法:
- 使用振动样品磁力计 (VSM) 测量.
- 采用第一阶逆曲线 (FORC) 分析来研究微磁行为.
- 系统地检查了带有或没有铁珠附着的维冈线.
主要成果:
- 发现铁珠增强了不可逆转的磁化,并改变了维冈电线内的磁相互作用分布.
- 维甘德电线的磁性结构被铁珠附着物所改变.
- 脉冲电压幅度增加了1.5-2.0倍,输出能量增加了30-40%.
结论:
- 铁珠附件通过对微磁性质的特定修改,显著提高了维冈传感器的性能.
- 本研究提供了一个理论框架,用于优化Wiegand传感器设计,以提高物联网应用中的能源采集.
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