| 金属微裂纹的谐振式涡流检测 |
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| 引用本文： | 沈跃,陈世廉. 金属微裂纹的谐振式涡流检测[J]. 中国石油大学学报(自然科学版), 1993, 0(2) |
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| 作者姓名： | 沈跃 陈世廉 |
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| 作者单位： | 石油大学数理系(沈跃)，石油大学数理系(陈世廉) |
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| 摘 要： | 本文用涡流谐振检测法对金属表面微裂纹的扩展进行测量.裂纹开裂面积对涡流有阻碍和切断作用,造成涡流检测线圈阻抗的相应变化,引起谐振电路品质因数升高、信号检测斜率增大.因此微小的表面裂纹和缺陷即可获得较大的信号电压输出.实际裂纹检测表明,这种方法灵敏度高、探测范围大,容易实现自动检测.
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| 关 键 词： | 金属 表面裂纹 谐振电路 涡流检测 |
MEASUREMENT OF METALLIC SURFACE CRACK BY USING EDDY CURRENT RESONANCE TESTING |
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| Shen Yue Chen Shilian. MEASUREMENT OF METALLIC SURFACE CRACK BY USING EDDY CURRENT RESONANCE TESTING[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1993, 0(2) |
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| Authors: | Shen Yue Chen Shilian |
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| Abstract: | An eddy current resonance testing method for measuring metallic surface cracks is presented. Tiny surface crack and defect can be detected by using a resonance circuit. This method is of high sensitivity and wide range of detection, and computerized acquisition and processing can also be easily achieved. |
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| Keywords: | Metal: Surface cracks: Resonant circuits Eddy current testing |
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