| 刘正帅,李 勇,任淑廷,张 超,陈振茂.构件损伤脉冲调制涡流检测探头新构型及
性能综合分析[J].电子测量与仪器学报,2021,35(9):170-178 |
| 构件损伤脉冲调制涡流检测探头新构型及
性能综合分析 |
| Novel structure and performance analysis of pulse-modulation eddy currentprobes for testing of damages in structural components |
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| DOI： |
| 中文关键词: 电磁无损检测 脉冲调制涡流检测 漏斗形磁芯探头 解析建模 灵敏度分析 |
| 英文关键词:electromagnetic nondestructive evaluation pulse-modulation eddy current inspection ferrite-cored funnel probe analytical
modelling sensitivity analysis |
| 基金项目:国家自然科学基金（51777149，11927801）、国家磁约束核聚变能发展研究专项（2019YFE03130003）、国家重点研发项目（2017YFF0209703）资助 |
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| Author | Institution |
| Liu Zhengshuai | 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering,
Xi’an Jiaotong University |
| Li Yong | 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering,
Xi’an Jiaotong University， 2. Shaanxi Engineering Research Centre of NDT and Structural Integrity Evaluation |
| Ren Shuting | 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering,
Xi’an Jiaotong University |
| Zhang Chao | 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering,
Xi’an Jiaotong University |
| Chen Zhenmao | 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering,
Xi’an Jiaotong University， 2. Shaanxi Engineering Research Centre of NDT and Structural Integrity Evaluation |
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| 中文摘要: |
| 金属构件在加工制造和服役期间常出现腐蚀、裂纹等结构型损伤,影响结构完整性,威胁设备安全运行。 因此,对金属
构件实施高效无损定量检测非常重要。 基于传统涡流检测探头结构,提出一种漏斗形磁芯探头新构型,可在脉冲调制涡流检测
中有效提高对表面和背面缺陷的检测灵敏度。 针对所提探头,通过建立其解析模型并推导检测信号解析表达式,系统探究该探
头的检测性能。 仿真研究表明,所提漏斗形磁芯探头在金属构件表面和背面减薄缺陷检测中具有更高灵敏度,并开展系列实验
研究。 实验研究在验证仿真结论的同时,进一步证实所提漏斗形磁芯探头在提升金属构件表面与背面局部腐蚀缺陷检测灵敏
度方面的有效性。 |
| 英文摘要: |
| The metallic components are normally subject to such structural anomalies as corrosion and cracks, etc. during fabrication and
practical service. These flaws have posed a severe threat to structural integrity and safety of engineering apparatus. In consequence, it is
imperative to non-invasively inspect and evaluate the metallic components via efficient non-destructive evaluation techniques. Based on
the conventional structure of the eddy current probe, in this paper a ferrite-cored funnel probe is proposed in an effort to further enhance
the testing sensitivity in pulse-modulation eddy current testing of surface and back surface corrosion. The analytical model and closedform expressions of testing signals from the proposed probe have been established for investigation of the testing performance. Following
the identification of the higher sensitivity of the proposed probe to surface and back surface corrosion in metallic components, a series of
experiments are conducted. Through the experiments, the validity of the conclusion of simulation is affirmed. Further experiments
demonstrate the enhancement of testing sensitivity in respect to localized defect on surface and back surface. |
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