| 敫励参数和试件电磁参数对脉冲涡流检测影响的仿真分析 |
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| 引用本文： | 徐志远,武新军,黄琛,康宜华.敫励参数和试件电磁参数对脉冲涡流检测影响的仿真分析[J].无损检测,2011(6):1-4,14. |
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| 作者姓名： | 徐志远 武新军 黄琛 康宜华 |
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| 作者单位： | 华中科技大学机械科学与工程学院; |
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| 基金项目： | 国家“十一五”科技支撑计划资助项目(2006BAK02B02) |
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| 摘 要： | 脉冲涡流检测技术已成功应用于带包覆层容器和管道壁厚检测。然而，由于铁磁性材料脉冲涡流检测机理的复杂性，目前缺乏对检测信号影响因素的有效分析方法。首先利用有限元仿真方法建立了脉冲涡流检测模型，并用试验验证了模型的正确性；然后研究了重复频率、占空比及边沿斜率等激励参数对检测信号的影响，为脉冲涡流检测激励模式的选择提供参考；最后分析了试件电磁参数对检测信号的影响，为脉冲涡流检测结果的解释提供依据。
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| 关 键 词： | 脉冲涡流检测 激励参数 电磁参数 有限元法 |
Analysis of the Effect of Excitation and Specimen Electromagnetic Parameters on Pulsed Eddy Current Testing Signal with Simulation Method |
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| XU Zhi-Yuan,WU Xin-Jun,HUANG Chen,KANG Yi-Hua.Analysis of the Effect of Excitation and Specimen Electromagnetic Parameters on Pulsed Eddy Current Testing Signal with Simulation Method[J].Nondestructive Testing,2011(6):1-4,14. |
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| Authors: | XU Zhi-Yuan WU Xin-Jun HUANG Chen KANG Yi-Hua |
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| Affiliation: | XU Zhi-Yuan,WU Xin-Jun,HUANG Chen,KANG Yi-Hua (Mechanical Science and Engineering Department,HUST,Wuhan 430074,China) |
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| Abstract: | Pulsed eddy current(PEC) testing technology has been successfully used to wall thickness measurement of coating vessels and pipes.However,due to the complexity ol PEC testing theory ol ferromagnetic materials,currently an effective method for analyzing the influence factors on PEC testing signal is still lacking.At first,a PEC testing model is established with finite element simulation method and verified by experiment.Then the effects of the excitation parameters including repetition frequency,duty cycle a... |
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| Keywords: | Pulsed eddy current testing Excitation parameters Electromagnetic parameters Finite element method |
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