Thermographic crack detection by eddy current excitation
Thermographic crack detection by eddy current excitation
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DOI：
10.1080/10589750701447920
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发表时间：
2007-06
影响因子：
2.6
通讯作者：
Günter Zenzinger;J. Bamberg;Wilhelm Satzger;V. Carl
中科院分区：
文献类型：
--
作者：
Günter Zenzinger;J. Bamberg;Wilhelm Satzger;V. Carl
涡流热成像是一种用于检测导电材料裂纹的新型无损检测技术。它结合了成熟的检测技术涡流检测和热成像技术。该方法的优点是利用涡流检测的高性能，而没有已知的边缘效应问题。特别是对于复杂几何形状的部件，这是一个可以克服检查设置费用增加的重要因素。描述了该技术的原理和提高小缺陷灵敏度的算法。一些航空发动机零件的检测示例展示了涡流热成像技术的潜力。
Eddy current thermography is a new NDT-technique for the detection of cracks in electroconductive materials. It combines the well established inspection techniques eddy current testing and thermography. The advantage of this method is to use the high performance of eddy current testing without the known problem of the edge effect. Especially for components of complex geometry this is an important factor which may overcome the increased expense for inspection set-up. The principle of this technique and an algorithm to increase the sensitivity for small defects are described. Some inspection examples on aero engines parts are presented which show the potential of eddy current thermography.