High-Sensitivity Dielectric Resonator-Based Waveguide Sensor for Crack Detection on Metallic Surfaces
High-Sensitivity Dielectric Resonator-Based Waveguide Sensor for Crack Detection on Metallic Surfaces
复制标题
用于金属表面裂纹检测的高灵敏度介电谐振器波导传感器
DOI：
10.1109/jsen.2019.2907129
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发表时间：
2019
影响因子：
4.3
通讯作者：
Lei Ming
中科院分区：
文献类型：
--
作者：
Wang Qingmin;Bi Ke;Hao Yanan;Guo Limin;Dong Guoyan;Wu Hongya;Lei Ming
金属表面裂纹检测对于关键金属设备的检测非常重要。本文提出了一种用于金属裂纹检测的高灵敏度介质谐振器加载近场波导传感器。数值和实验结果表明，这种基于介质谐振器的波导传感器可以有效地检测金属表面上的裂纹。最大深度灵敏度为0.71 GHz/mm，最大宽度灵敏度为1.24 GHz/mm，这是由于在波导传感器的宽侧的介质谐振器上的局部电场能量。这一工作对金属裂纹检测及其相关应用的发展具有重要意义。
Crack detection on metallic surfaces is important for the inspection of critical metallic devices. In this paper, a high-sensitivity near-field waveguide sensor loaded with a dielectric resonator for metallic crack detection is demonstrated. Both the numerical and experimental results reveal that this dielectric resonator-based waveguide sensor can effectively detect cracks on a metallic surface. The maximum depth sensitivity is 0.71 GHz/mm and the maximum width sensitivity is 1.24 GHz/mm, resulting from the localized electric field energy on the dielectric resonator in the broad side of the waveguide sensor. This work will be of interest to the development of metallic crack detection and related applications.