一个基于扭矩模式磁电合效应的宽动态范围电流传感器
Fuchao Li1,2, Zihuan Huang1, Yuan Meng1
1State Grid Sichuan Electric Power Company, Chengdu 610041, China.
Sensors (Basel, Switzerland)
|December 11, 2025
概括
这项研究引入了一种新的磁电复合传感器,用于精确的交流电 (AC) 测量. 该传感器有效地检测到电源系统中的广动态范围和弱交流电流.
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:
- 电力系统需要先进的电流传感器,用于广泛的动态范围负载电流.
- 现有技术在准确测量高振幅和低振幅交流电流方面面临挑战.
- NdFeB/氧化 (PZT) 磁电复合材料为传感器开发提供了独特的特性.
研究的目的:
- 开发一种新的磁电合电流传感器.
- 为了能够准确地检测广泛的动态范围和弱交替电流 (AC).
- 为解决新动力系统当前传感技术的局限性.
主要方法:
- 使用NdFeB/PZT磁电复合材料制造磁敏元件.
- 在扭矩模式下运行的磁电合电流传感器的开发.
- 对传感器性能进行实验验证,包括灵敏度,线性范围和检测极限.
主要成果:
- 传感器显示功率频率电流检测灵敏度为15.56mV/A.
- 实现了从0到120A的广泛线性检测范围.
- 对于弱电流,其低检测极限为153μA.
- 确认了对交流电流检测的高灵敏度和宽动态范围.
结论:
- 拟议的NdFeB/PZT磁电复合传感器为交流电流检测提供了高灵敏度.
- 传感器有效地测量广泛的动态范围和功率频率的弱电流.
- 这项技术在电力系统中显示出显著的应用潜力,用于精确的电流监控.
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