| 涡流放置式探头检测表面裂纹工作频率的选取 |
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| 引用本文： | 孙金立,陈遵银,陈新波.涡流放置式探头检测表面裂纹工作频率的选取[J].青岛大学学报(工程技术版),2002,17(1):17-20. |
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| 作者姓名： | 孙金立 陈遵银 陈新波 |
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| 作者单位： | 1. 华中科技大学,湖北,武汉,430074
2. 海军航空工程学院青岛分院,山东,青岛,266041 |
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| 摘 要： | 用涡流放置式探头探伤时，把工件看成半无限大平面，用电磁场理论推导出特征频率的计算公式，按最大灵敏度原则计算出材料的工作频率选择范围，通过实验，给出了常用材料的表面裂纹在一定频率下的检测结果。
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| 关 键 词： | 放置式探头 涡流探伤 工作频率 表面裂纹 检测 计算 电磁场理论 |
| 文章编号： | 1006-9798(2002)01-0017-04 |
| 修稿时间： | 2001年7月11日 |
CHOICE OF WORKING FREQUENCY TO DETECT SURFACE FLAW BY SPOT PROBE OF EDDY CURRENT |
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| Sun Jinli ,Chen Zunyin ,Chen Xinbo.CHOICE OF WORKING FREQUENCY TO DETECT SURFACE FLAW BY SPOT PROBE OF EDDY CURRENT[J].Journal of Qingdao University(Engineering & Technology Edition),2002,17(1):17-20. |
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| Authors: | Sun Jinli Chen Zunyin Chen Xinbo |
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| Affiliation: | Sun Jinli 1,Chen Zunyin 2,Chen Xinbo 2 |
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| Abstract: | The specimen was considered as a semi infinite flat surface when tested by a point probe. Applying the theory of electromagnetic field, the calculation equation of the characteristic frequency is derived, and the choice range of the working frequency of the specimen is calculated according to the most sensitivity principle. The conclusion of the surface flaw in common use specimen is drawn by experiments. |
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| Keywords: | spot probe eddy current testing working frequency flaw |
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