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| 非线性因素对远场涡流探头特性的影响 |
| The Influence of Nonlinear Factor To The Charicteristic of Remote Field Eddy Current Probe |
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| DOI： |
| 中文关键词: 远场涡流探头 非线性影响 |
| 英文关键词: Remote Field Eddy Current Probe The influence of Nonlinear Factor |
| 基金项目:国家自然科学基金!58870297 |
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| 摘要点击次数: 3514 |
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| 中文摘要: |
| 采用线性和非线性有限元方法对带磁路和磁电组合屏蔽的远场涡流探头的信号──距离特性进行了计算机模拟,给出探头的信号──距离特性曲线。结果表明:铁磁材料的非线性因素导致激励电流密度与二次穿透区的位置直接相关联。 |
| 英文摘要: |
| This paper utilizes the method of linear and nonlinear finite element to analogize the signal-distance charicteristic of remote field eddy current probe with magnetic path and electromagnetic shelter. It provides the signal-distance curve of the probe. The conclusion shows that the nonlinear factor of electromagnetic material results in the density of stimulated current to be related to the position of the remote field. |
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