一个低成本的便携式系统,用于对静态和极低频磁场的三轴测量
Veronika Wohlmuthova1, Michal Labuda1, Mariana Benova1
1University of Zilina, Faculty of Electrical Engineering and Information Technology, Department of Electromagnetic and Biomedical Engineering, Univerzitna 8215/1, Zilina 010 26, Slovakia.
HardwareX
|July 31, 2025
概括
本研究介绍了一个开源的,三轴磁场测量系统,用于可访问的直接和极低频率场的监测. 这种新型设备可靠地检测磁场,包括电网频率,对各种研究和教育环境非常有用.
科学领域:
- 物理 物理学 物理
- 电气工程 电气工程
- 仪器化 仪器化 仪器化
背景情况:
- 精确的磁场测量工具是有限的,特别是对于小规模的用户,如教育工作者和独立研究人员.
- 直流 (DC) 和极低频 (ELF) 磁场在各种科学和技术应用中至关重要.
- 现有的解决方案往往缺乏可访问性,模块化或全面的数据记录功能.
研究的目的:
- 开发和验证一个新的,开源的磁场测量系统.
- 为监测直流和ELF磁场提供一种可访问和多功能工具.
- 通过蓝牙传输和离线液晶显示器可视化实现灵活的数据采集.
主要方法:
- 该系统采用模块化硬件设计,搭配定制印刷电路板 (PCB).
- 它集成了MC858和MPU9250传感器与模拟信号调节和一个12位模拟到数字转换器 (ADC).
- 实验验证涉及法拉第子内的测量,使用干机作为不同距离的电磁场源.
主要成果:
- 该系统可靠地检测出磁场,包括50 Hz电网频率及其波.
- 实验数据证实了该系统能够根据源距离和运行状态区分场强度变化.
- 频率分析验证了对主导频率及其波的准确捕获.
结论:
- 开发的开源系统为磁场测量提供了精确且易于使用的解决方案.
- 它的模块化设计和数据记录功能提高了教育和研究目的的可用性.
- 该系统成功地证明了ELF磁场和电网频率组件的可靠检测和分析.
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