| 脉冲涡流无损检测装置的研制 |
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| 引用本文： | 陈聪聪,王帅,田昌海. 脉冲涡流无损检测装置的研制[J]. 传感器世界, 2011, 17(9): 22-25,33 |
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| 作者姓名： | 陈聪聪 王帅 田昌海 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 脉冲涡流检测方法是近几年迅速发展起来的一种涡流无损检测新技术。研究了脉冲涡流无损检测机理，研发了脉冲涡流无损检测装置，包括探头的设计与制作、脉冲信号发生电路的设计与制作、信号调理电路的设计与制作等。完成了脉冲涡流裂纹无损检测的实验研究，选取了最佳的检测参数匹配。实验结果表明，所设计的脉冲涡流无损检测装置在激励频率为100Hz-1000Hz范围内信号最为敏感。
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| 关 键 词： | 脉冲涡流 无损检测 裂纹 时域分析 过零时间 峰值 |
Research on the pulsed eddy-current nondestructive testing equipment used for the crack testing |
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| CHEN Cong-cong,WANG Shuai,TIAN Chang-hai. Research on the pulsed eddy-current nondestructive testing equipment used for the crack testing[J]. Sensor World, 2011, 17(9): 22-25,33 |
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| Authors: | CHEN Cong-cong WANG Shuai TIAN Chang-hai |
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| Affiliation: | (Beijing University of Aeronautics and Astronautics,Beijing 100191,China) |
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| Abstract: | The pulsed eddy-current nondestructive test is one kind of new eddy-current nondestructive testing technology which develops rapidly in recent years.In this paper the mechanism of the pulsed eddy-current nondestructive test is studied and a pulsed eddy-current nondestructive test system is designed,which includes the probe head,the pulse signal generator and the signal conditioning circuits.The experimental study is completed and the best parameter matching solution is given.The experiment results show that the testing system designed in this paper is most sensitive in the excitation frequency range of 100Hz～1000Hz. |
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| Keywords: | pulse turbulent flow lossless examination crack time domain analysis zero crossing time peak value |
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