非接触电流传感系统基于巨大的磁阻效应的CoFeNiSiB无形带曲
Zhen Yang1,2,3, Zhenbao Wang1,2,3, Mengyu Liu1,2,3
1School of Electronic and Information Engineering/School of Integrated Circuits, Guangxi Normal University, Guilin 541004, China.
一个新的非接触式电流传感器利用了CoFeNiSiB无形带中的巨型磁阻抗 (GMI) 效应. 该系统实现了高灵敏度,达到24.2mV/A,用于精确的电流测试应用.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 传感器技术 传感器技术
背景情况:
- 巨型磁阻强度 (GMI) 传感器为磁场检测提供高灵敏度.
- 无形磁性材料为传感器应用提供独特的电磁性质.
- 无接触电流传感在各种工业和电子系统中至关重要.
研究的目的:
- 开发和描述一个灵敏的非接触电流传感系统.
- 为当前测试研究CoFeNiSiB无形带中的巨型磁阻抗 (GMI) 效应.
- 通过分析偏差磁场的影响来优化传感器性能.
主要方法:
- 使用MEMS工艺从CoFeNiSiB无形带曲线制造四个GMI探头.
- 使用侧面电流发生器 (10 MHz,5 mA) 驱动GMI探头.
- 应用偏移磁场并测量输出直流电压以确定灵敏度和线性.
主要成果:
- 开发的非接触式电流传感系统表现出良好的灵敏度和线性.
- 在偏差磁场 (Hbias) 为 15 Oe 的情况下,可以达到最佳性能.
- 在±1.5A测量范围内记录了24.2mV/A的最大灵敏度.
结论:
- CoFeNiSiB无形带GMI传感器是用于敏感非接触电流测试的可行技术.
- 系统的性能受到应用偏移磁场的显著影响.
- 由MEMS制造的GMI探头为先进的电流传感解决方案提供了一个有前途的平台.
更多相关视频
10:52Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing
Published on: March 8, 2020
05:04Author Spotlight: Introduction to Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays
Published on: June 13, 2023
相关概念视频
Magnetic Force On Current-Carrying Wires: Example
Magnetic Field Of A Current Loop
Magnetic Force Between Two Parallel Currents
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and the vector product of the length vector along the current element and the field due to the first conductor. According to the...
Magnetic Field Due To A Thin Straight Wire
Magnetic Field Due to Two Straight Wires
Magnetic Force On A Current-Carrying Conductor
Consider a compass placed near a current-carrying wire. The wire experiences a force that aligns the needle of the compass tangentially around the wire. Thus, the current-carrying wire produces concentric circular loops of magnetic field. The magnetic field generated by a wire can be...
