| 脉冲涡流检测技术的进展 |
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| 引用本文： | 张思全,陈铁群,朱佳震.脉冲涡流检测技术的进展[J].无损检测,2008,30(11):838-841,864. |
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| 作者姓名： | 张思全 陈铁群 朱佳震 |
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| 作者单位： | [1]华南理工大学机械工程学院,广州510640 [2]广州民航职业技术学院,广州510403 |
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| 基金项目： | 广东省重点攻关项目资助 |
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| 摘 要： | 脉冲涡流检测技术主要用于检测亚表面及多层金属结构缺陷。脉冲激励与金属结构缺陷之间发生相互作用，在探头中引起的瞬态响应信号包含大量的缺陷信息，使之具有快速定量检测缺陷的潜力，但也增加了对响应信号解释的难度。评述了脉冲涡流瞬态响应的计算、提离噪声抑制等方面的国内外研究进展，分析了脉冲涡流检测技术的发展方向。
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| 关 键 词： | 脉冲涡流检测 瞬态响应 噪声抑制 提离 |
The Development of Pulsed Eddy Current Testing Technique |
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| Affiliation: | ZHANG Si-Quan, CHEN Tie-Qun , ZHU Jia-Zhen (1. School of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China; 2. Guangzhou Civil Aviation College, Guangzhou 510403, China) |
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| Abstract: | Pulsed Eddy Current Testing （PECT） is a new eddy current testing technology used in metallic subsurface defect testing. As the transient eddy current response signals due to the interaction of transient eddy current with a defect in a conductive plate contain sufficient information of defect, can potentially make PECT quantify defect fast, also increases the difficulty of interpretation the response signals. The recently progress both inland and overseas in studying of the transient eddy current response and the method to suppress lift-off noise were discussed. The future trend of development of PECT was analyzed. |
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| Keywords: | Pulsed eddy current testing Transient response Noise suppress Lift-off |
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