基于磁通图像的平板三维编织复合材料试件内部缺陷检测

纺织学报 ›› 2015, Vol. 36 ›› Issue (08): 49-55.

基于磁通图像的平板三维编织复合材料试件内部缺陷检测

收稿日期:2014-06-10 修回日期:2015-03-19 出版日期:2015-08-15 发布日期:2015-08-07

Flux image-based internal defectdetection for flat test pieces of three-dimensional braided composites

Received:2014-06-10 Revised:2015-03-19 Online:2015-08-15 Published:2015-08-07

摘要/Abstract

摘要：

基于量子扰动超导探测传感器超高的磁场灵敏度，将量子扰动超导探测无损检测技术应用于三维编织复合材料平板试件内部缺陷的无损检测。构建了适用于量子扰动超导探测检测需要的薄板中圆形缺陷涡流分布的理论模型。提出了量子扰动超导探测检测平板三维纺织复合材料试件内部缺陷的磁通变化成像算法，利用OPENCV软件对磁通图像进行处理,准确判定三维编织复合材料平板内部缺陷情况。试验结果表明：该方法准确描述了被检测试件缺陷的位置和尺寸；量子振动超导探测磁通成像具备良好的检测和定位的能力；相对于超声波等传统检测技术，量子振动超导探测技术是一种更为先进的三维编织复合材料的无损检测技术。

关键词: 三维编织复合材料, 超导量子干涉仪, 缺陷, 无损检测, 磁通成像

Abstract:

Based on ultrahigh sensitivity of the SQUID sensor, the SQUID nondestructive testing is used in nondestructive detection of the internal defect of flat pieces for 3-D braided composites. The system constructs the theory of circular eddy current distribution in the thin sheet, which is suitable for the SQUID testing requirements. This paper presents flux imaging algorithm for the SQUID detection of the internal defect in flat pieces of 3-D braided composites. The OPENCV was used for processing the flux image and detecting the inside defect condition of the pieces of 3-D braided composites. Experimental results show that the method is accurate to describe the location and size of defects of the detected test piece.The SQUID magnetic flux has good function for detection and location. Compared with the conventional detection technologies such as ultrasonic detection, the SQUID technology is a more advanced nondestructive testing techniques suitable for 3-D braided composites.

Key words: three-dimensional braided composite material, superconducting quantum interference device, defect, non-destructive testing, flux image

中图分类号:

TS101.2

万振凯贾敏瑞. 基于磁通图像的平板三维编织复合材料试件内部缺陷检测[J]. 纺织学报, 2015, 36(08): 49-55.

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