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doi:10.13228/j.boyuan.issn1001-0777.20150040

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Abstract��Based on introducing the principle of AC magnetic flux leakage testing�� analysis was conducted on the skin effect rule of magnetic field and vortex distribution in steel rods AC magnetic flux leakage testing�� the characteristic of leakage magnetic field and the formation and processing of detected signals�� particularly the role of vortex in AC magnetic flux leakage testing. A discussion was explored on the magnetic flux leakage testing method�� detection device composition and its similarities and differences with DC magnetic flux leakage testing. In addition�� the technique characteristic was concluded on steel rods AC magnetic flux leakage testing.

�ո��: 2015-06-10 ��: 2015-12-02

ͨѶ��: �� E-mail: fanhong58@163.com

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�� 룬�ֻ��. �ְ��©��̽�˼��̽��[J]. �й��ڿ��, 2015, 33(6): 1-5. FAN Hong�� JIA Hui-ming. Exploration on the steel rods AC magnetic flux leakage testing technique. Chinese Journal of Iron and Steel, 2015, 33(6): 1-5.

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http://gt.chinamet.cn/Jweb_wlcs/CN/10.13228/j.boyuan.issn1001-0777.20150040 �� http://gt.chinamet.cn/Jweb_wlcs/CN/Y2015/V33/I6/1