Experimental research on surface defect based on pulsed eddy current thermography

DU Yang; ZHOU De-qiang; PAN Meng

doi:10.13873/j.1000-9787(2017)09-0045-04

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Experimental research on surface defect based on pulsed eddy current thermography

更新时间：2025-09-11

- Experimental research on surface defect based on pulsed eddy current thermography
- Vol. 36, Issue 9, Pages: 45-48(2017)
- 作者机构：
  
  1. 江南大学机械工程学院
  2. 江苏省食品先进制造装备技术重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-9787(2017)09-0045-04
  CLC： TP391.41
- Published：2017
- 稿件说明：
移动端阅览
[1]杜阳,周德强,潘萌.基于脉冲涡流热成像的表面缺陷实验研究[J].传感器与微系统,2017,36(09):45-48.

DU Yang, ZHOU De-qiang, PAN Meng. Experimental research on surface defect based on pulsed eddy current thermography[J]. 2017, 36(9): 45-48.
[1]杜阳,周德强,潘萌.基于脉冲涡流热成像的表面缺陷实验研究[J].传感器与微系统,2017,36(09):45-48. DOI： 10.13873/j.1000-9787(2017)09-0045-04.

DU Yang, ZHOU De-qiang, PAN Meng. Experimental research on surface defect based on pulsed eddy current thermography[J]. 2017, 36(9): 45-48. DOI： 10.13873/j.1000-9787(2017)09-0045-04.

摘要

针对碳纤维增强复合材料、铁磁性材料、非铁磁性材料

采用脉冲涡流热成像技术对其表面裂纹进行了实验研究

由于红外热像仪采集到的红外热图像边缘信息模糊以及提取的信息不完整

提出了一种Sobel算子的优化算法

研究发现改进后的算法能够有效提高对裂纹缺陷的边缘识别能力

实现对裂纹缺陷的定性分析。研究了不同材料缺陷深度的温度分布规律以及涡流加热方式

并分析了感应加热后不同裂纹深度与温度响应曲线的关系

为裂纹缺陷的定量分析提供了理论依据。

Abstract

Experimental research on crack of conductive component is carried out aiming at carbon fiber reinforced compound materials

ferromagnetic materials and non-ferromagnetic materials. Image edge information acquired by infrared thermal imager and extracted information is incomplete. Put forward an optimization algorithm based on Sobel operator. It is found that the improved algorithm can effectively increase edge recognition capability of crack defects and qualitative analysis on surface crack defects is realized. Temperature distribution rule of defect depth of different materials and eddy heating mode are studied

relationship between different depth of crack and temperature response curve is analyzed. Provide theoretical basis for quantitative analysis of surface crack defects.

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references

脉冲涡流矩形传感器参数的仿真优化与实验 [J]. 周德强,闫向阳,尤丽华,张秋菊. 传感器与微系统 . 2013(05)

脉冲涡流铁磁性材料缺陷检测系统设计 [J]. 周德强,左晓芳,尤丽华,张秋菊,闫向阳. 传感器与微系统 . 2012(10)

方向性脉冲涡流应力检测研究进展 [J]. 周德强,田贵云,尤丽华,王海涛. 传感器与微系统 . 2011(09)

基于Sobel算子的图像边缘检测研究 [J]. 袁春兰,熊宗龙,周雪花,彭小辉. 激光与红外 . 2009(01)

涡流热成像检测技术[M]. 国防工业出版社 , 潘孟春, 2013

Optically and non-optically excited thermography for composites: A review [J] . Ruizhen Yang,Yunze He. Infrared Physics and Technology . 2015

Eddy-current induced thermography—probability of detection study of small fatigue cracks in steel, titanium and nickel-based superalloy [J] . Ben Weekes,Darryl P. Almond,Peter Cawley,Tim Barden. NDT and E International . 2012

Pulsed electromagnetic methods for defect detection and characterisation [J] . John W. Wilson,Gui Yun Tian. NDT and E International . 2007 (4)

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