便携式钢轨疲劳裂纹检测装置的研制
Development of a Portable Pulsed Eddy Current Inspection Instrument for Rail Fatigue Crack Detection
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。
钢轨裂纹检测
提离
便携式仪器
Pulsed eddy current
Rail crack detection
Lift-off
Portable inspection instrument
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.
中图分类号 TG115.28
所属栏目 科研成果与学术交流
基金项目 国家自然科学基金资助项目(50305017)
收稿日期 2005/2/1
修改稿日期
网络出版日期
作者单位点击查看
引用该论文: 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
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
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参考文献
【1】Rainer Pohl, Erhard A, Montag HJ, et al. NDT techniques for railroad wheel and gauge corner inspection\[J\]. NDT & E International,2004,37(2):89-94.
【2】Robin Clark. Rail flaw detection: overview and needs for future developments\[J\]. NDT & E International,2004,37(2):111-118.
【3】Bruno Lebrun, Yves Jayet, Jean-Claude Badoux. Pulsed eddy current signal analysis: application to the experimental detection and characterization of deep flaws in highly conductive materials\[J\]. NDT & E International,1997,30(3):163-170.
【4】游凤荷，蒋 韬，孙砚飞.脉冲涡流磁场特征分析\[J\].仪表技术与传感器,2003,(5):38-39.
【5】Gui Yun Tian, Ali Sophian. Defect classification using a new feature for pulsed eddy current sensors\[J\]. NDT & E International,2005,38(1):77-82.
【6】Gui Yun Tian, Ali Sophian. Reduction of lift-off effects for pulsed eddy current NDT\[J\]. NDT & E International,2004,37(1):1-6.
【7】杨宾峰，罗飞路.脉冲涡流无损检测技术应用研究\[J\].仪表技术与传感器,2004,(8):45-46.
【8】Ali Sophian, Gui Yun Tian, David Taylor, et al. Design of a pulsed eddy current sensor for detection of defects in aircraft lap-joints\[J\]. Sensor and Actuators A,2002,101(1-2):92-98.
【2】Robin Clark. Rail flaw detection: overview and needs for future developments\[J\]. NDT & E International,2004,37(2):111-118.
【3】Bruno Lebrun, Yves Jayet, Jean-Claude Badoux. Pulsed eddy current signal analysis: application to the experimental detection and characterization of deep flaws in highly conductive materials\[J\]. NDT & E International,1997,30(3):163-170.
【4】游凤荷，蒋 韬，孙砚飞.脉冲涡流磁场特征分析\[J\].仪表技术与传感器,2003,(5):38-39.
【5】Gui Yun Tian, Ali Sophian. Defect classification using a new feature for pulsed eddy current sensors\[J\]. NDT & E International,2005,38(1):77-82.
【6】Gui Yun Tian, Ali Sophian. Reduction of lift-off effects for pulsed eddy current NDT\[J\]. NDT & E International,2004,37(1):1-6.
【7】杨宾峰，罗飞路.脉冲涡流无损检测技术应用研究\[J\].仪表技术与传感器,2004,(8):45-46.
【8】Ali Sophian, Gui Yun Tian, David Taylor, et al. Design of a pulsed eddy current sensor for detection of defects in aircraft lap-joints\[J\]. Sensor and Actuators A,2002,101(1-2):92-98.
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