钢板近表面缺陷的交流电磁场检测

基金项目:

国家自然科学基金资助项目（51065024）。

详细信息

Alternating Current Field Measurement of the Near-Surface Cracks in Steel Plate

Key Laboratory of Nondestructive Testing of Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China

摘要: 将金属薄片覆盖在含有人工裂纹的钢板上来模拟近表面缺陷，通过搭建交流电磁场检测的试验平台来提取近表面缺陷的磁场信号。试验得出了近表面裂纹交流电磁场检测的最佳激励频率、最大埋深厚度及影响近表面裂纹检测的因素，以为近表面裂纹的实际检测提供参考。
- 交流电磁场检测 /
- 近表面裂纹 /
- 激励频率
Abstract: In view of the near surface defects detection, steel plates containing artificial cracks were covered with the sheet metal to simulate the near-surface defects, and the experiment platform of ACFM was built to extract magnetic field signal of the near-surface defects. Experimental data were analyzed, and the optimal excitation frequency, the maximum burial depth and related influencing factors of ACFM on near-surface cracks were obtained, which could provide a reference for the practical detection on the near-surface cracks.
- alternating current field measurement /
- near-surface crack /
- excitation frequency

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