Scholarlink

Pulsed field magnetometers are simple and inexpensive, and are capable of achieving high magnetization fields, making them suitable for the measurement needs of ultra-high coercivity permanent magnets. However, the eddy currents generated in the pulsed discharge test can lead to deviations in the test results. In this paper, a calculation method applicable to eddy current correction in pulsed-field magnetometers is proposed. According to the principle that the eddy current is proportional to the rate of change of the magnetic field, the same size and different frequency pulses are used to excite the permanent magnet, thus quantifying the size of the eddy current magnetic field, and the influence of eddy current on the hysteresis loop measurement results of the permanent magnet can be effectively deducted.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Differential Ratio Method for Eddy Current Correction of Pulsed Magnetic Field Magnetometers

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Shuo Huang,
  • Jianfeng Xie,
  • Youguang Guo,
  • Jiangtao Shi,
  • Jianbiao Li,
  • Xiaotao Han

摘要

Pulsed field magnetometers are simple and inexpensive, and are capable of achieving high magnetization fields, making them suitable for the measurement needs of ultra-high coercivity permanent magnets. However, the eddy currents generated in the pulsed discharge test can lead to deviations in the test results. In this paper, a calculation method applicable to eddy current correction in pulsed-field magnetometers is proposed. According to the principle that the eddy current is proportional to the rate of change of the magnetic field, the same size and different frequency pulses are used to excite the permanent magnet, thus quantifying the size of the eddy current magnetic field, and the influence of eddy current on the hysteresis loop measurement results of the permanent magnet can be effectively deducted.