扰动磁场检测技术中裂纹磁场信号的反演
Researches of Flaw Magnetic Field Signal in Alternating Current Field Measurement Technique
摘 要
依据试验数据和有限元仿真结果, 分析了裂纹缺陷特征与扰动磁场分布的关系, 总结出交流场检测技术中磁信号裂纹尺寸反演的基本规律。借助于Bx扰动磁场信号形状与裂纹缺陷特征之间的相似性, 建立了二维表面缺陷形状的反演算法。
无损检测
扰动磁场
裂纹
信号反演
ACFM
Nondestructive testing
Disturbing magnetic field
Flaw
Signal inversion
Abstract
Relationships of flaw disfigurement characteristic and disturbing magnetic field distribution were studies based on experimentation and finite element simulations. Mechanism about magnetic field signal size inversion in alternating current field measurement(ACFM) was concluded. According to the comparability of disturbing magnetic field signal form and flaw characteristic, the 2-D inversion algorism of surface flaw was presented.
中图分类号 TG115.28
所属栏目 科研成果与学术交流
基金项目 航空科学基金资助项目(06ZF56009); 江西省自然科学基金资助项目(2007GZC1587); 无损检测技术教育部重点实验室基金资助项目(ZD200629001)
收稿日期 2009/3/28
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备注任尚坤(1963-), 男, 博士, 教授, 从事电磁检测方面的教学与研究工作。
引用该论文: REN Shang-Kun,ZHU Zhi-Bin,LIN Tian-Hua,REN Ji-Lin. Researches of Flaw Magnetic Field Signal in Alternating Current Field Measurement Technique[J]. Nondestructive Testing, 2010, 32(2): 86～89
任尚坤,朱志斌,林天华,任吉林. 扰动磁场检测技术中裂纹磁场信号的反演[J]. 无损检测, 2010, 32(2): 86～89
被引情况:
【1】史洪源,陈金贵,任尚坤, "基于交变磁场测量技术的裂纹缺陷定量检测系统设计",无损检测 34, 19-22(2012)
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参考文献
【1】Saguy H, Rittel D. Flaw detection in metals by the ACPD technique: Theory and experiments[J]. NDT and E International, 2007, 40(7): 505-509.
【2】Smith M, Sutherby R. The detection of pipeline SCC flaws using the ACFM technique[J]. Non-Destructive Testing and Condition Monitoring, 2005, 47(12): 765-768.
【3】Salemi A H. Thin-skin analysis technique for interaction of arbitrary-shape inducer field with long cracks in ferromagnetic metals[J]. NDT and E International, 2004, 37(6): 471-479.
【4】Knight M J, Brennan F P, Dover W D. Effect of residual stress on ACFM crack measurements in drill collar threaded connections[J]. NDT&E International, 2004, 37(5): 337-343.
【2】Smith M, Sutherby R. The detection of pipeline SCC flaws using the ACFM technique[J]. Non-Destructive Testing and Condition Monitoring, 2005, 47(12): 765-768.
【3】Salemi A H. Thin-skin analysis technique for interaction of arbitrary-shape inducer field with long cracks in ferromagnetic metals[J]. NDT and E International, 2004, 37(6): 471-479.
【4】Knight M J, Brennan F P, Dover W D. Effect of residual stress on ACFM crack measurements in drill collar threaded connections[J]. NDT&E International, 2004, 37(5): 337-343.
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