| 便携式钢轨疲劳裂纹检测装置的研制 |
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| 引用本文： | 李舒,黄松岭,赵伟,李育忠,李久春,常连庚. 便携式钢轨疲劳裂纹检测装置的研制[J]. 无损检测, 2006, 28(5): 229-232,248 |
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| 作者姓名： | 李舒 黄松岭 赵伟 李育忠 李久春 常连庚 |
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| 作者单位： | 1. 清华大学,电机系,北京,100084
2. 中油管道检测技术有限公司,河北,廊坊,065000 |
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| 摘 要： | 基于脉冲涡流理论和应用信号处理技术等研制出一款便携式钢轨疲劳裂纹检测装置。对该装置各功能模块的技术特点和整体性能加以描述。试验表明，该装置在显著降低检测装置功耗的同时，仍可有效抑制提离现象对检测的影响，即在一个足够宽的提离范围内，仍可快速检测到被测件表面的裂纹。
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| 关 键 词： | 脉冲涡流 钢轨裂纹检测 提离 便携式仪器 |
| 文章编号： | 1000-6656（2006）05-0229-04 |
| 收稿时间： | 2005-02-01 |
| 修稿时间： | 2005-02-01 |
Development of a Portable Pulsed Eddy Current Inspection Instrument for Rail Fatigue Crack Detection |
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| LI Shu,HUANG Song-ling,ZHAO Wei,LI Yu-zhong,LI Jiu-chun,CHANG Lian-geng. Development of a Portable Pulsed Eddy Current Inspection Instrument for Rail Fatigue Crack Detection[J]. Nondestructive Testing, 2006, 28(5): 229-232,248 |
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| Authors: | LI Shu HUANG Song-ling ZHAO Wei LI Yu-zhong LI Jiu-chun CHANG Lian-geng |
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| Affiliation: | Department of Electrical Engineering, Tsinghua University, Beijing 100084, China;China Petroleum Pipeline Inspection Technologies Co. Ltd, Langfang Hebei 065000, China |
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| Abstract: | Based on the principle of pulsed eddy current and the application of signal processing and microcontroller techniques, a portable inspection instrument for rail fatigue crack detection was developed. The functional modules of the instrument and the performances were also described. Tests verified that while the power consumption of instrument was decreased obviously, the influence of lift-off phenomenon was effectively restrained, namely, at a range of lift-off heights, the surface fatigue cracks in rails were detected with high speed. |
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| Keywords: | Pulsed eddy current Rail crack detection Lift-off Portable inspection instrument |
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