| 几种电磁无损检测方法的工作特征 |
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| 引用本文： | 康宜华,宋凯,杨建桂,任吉林.几种电磁无损检测方法的工作特征[J].无损检测,2008,30(12):928-930. |
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| 作者姓名： | 康宜华 宋凯 杨建桂 任吉林 |
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| 作者单位： | [1]华中科技大学机械学院,武汉430074; [2]南昌航空大学无损检测技术教育部重点实验室,南昌330063 |
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| 基金项目： | 国家自然科学基金资助项目
，
无损检测技术教育部重点实验室基金资助项目
，
江西省教育厅基金资助项目
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| 摘 要： | 从工作原理入手，对电磁无损检测中的涡流（单、多频和脉冲涡流）、交流漏磁、交变磁场等方法，剖析了它们在激励磁场的成分、频段、作用区域及检测磁场的特性方面的联系和区别。对比了各方法的用途和特点，以期对无损检测应用实践提供借鉴。
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| 关 键 词： | 电磁检测 电磁感应 检测特征 |
The Study of Several Electromagnetic Testing Methods on Operational Features |
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| Affiliation: | KANG Yi-Hua , SONG Kai, YANG Jian-Gui , REN Ji-Lin (1. School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; 2.Key Laboratory of Nondestructive Test (Ministry of Education), Nanchang Hangkong University, Nanchang 330063, China) |
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| Abstract: | A few of new techniques of electromagnetic testing, such as eddy current testing （ single or multifrequency, pulsed eddy current）, alternative magnetic flux leakage and alternative current field measurement, were introduced. Based on their operational principles, the relation and difference of exciting magnetic characteristic （component, wave band, and action zonel were analyzed, as well as measuring magnetic characteristic. Finally, the applications and features of these methods were presented, providing some valuable reference for non-destructive testing practice. |
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| Keywords: | Electromagnetic testing Electromagnetic induction Detecting features |
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