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锁相成像技术检测玻璃钢缺陷研究

Lock-Imaging Technology to Detect Defects Fiber Reinforced Plastics Research

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摘要

红外热波检测技术是一种新兴的无损检测技术。与传统的被动式红外检测方法不同,该方法将外加瞬时或交变温场施加到被测物,通过红外热像设备监测被测物在外加温场下的表面温度变化。根据外加温场的类型及相应的物理模型对采集到的数据信号进行处理,以图像的形式显示。利用红外锁相技术对玻璃钢材料试件进行检测,通过SC3000热像仪进行实验,并通过快速傅里叶变换进行计算,实验得出相位图效果好于振幅图,且发现在不同加载频率下,实验效果不同。

Abstract

Infrared (IR) thermal wave inspection is a merging technology in nondestructive evaluation. Different from conventional passive infrared inspection, infrared thermal wave inspection work with a sample under transient or alternating temperature field. The surface temperature is recorded by a infrared camera, and the data collected are processed according to the type of the temperature field and correspond physical model. Using lock-in thermography to test fiber reinforced plastics (FRP) material by SC3000 IR camera, and calculated by the fast Fourier transform (FFT) algorithm. Results show that the phase diagram effect is better than that of amplitude diagram, and different loading frequencies have different experimental results.

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中图分类号:TB133

DOI:10.3788/aos201434.s112001

所属栏目:仪器,测量与计量

基金项目:国家自然科学基金联合基金(U123312040)

收稿日期:2013-12-01

修改稿日期:2014-01-27

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作者单位    点击查看

蒋玉龙:首都师范大学物理系, 北京 100048
冯立春:首都师范大学物理系, 北京 100048
黄新萍:首都师范大学物理系, 北京 100048
张存林:首都师范大学物理系, 北京 100048

联系人作者:蒋玉龙(jiangyulong55@sina.com)

备注:蒋玉龙(1988—),男,硕士研究生,主要从事红外无损检测方面的研究。

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引用该论文

Jiang Yulong,Feng Lichun,Huang Xinping,Zhang Cunlin. Lock-Imaging Technology to Detect Defects Fiber Reinforced Plastics Research[J]. Acta Optica Sinica, 2014, 34(s1): s112001

蒋玉龙,冯立春,黄新萍,张存林. 锁相成像技术检测玻璃钢缺陷研究[J]. 光学学报, 2014, 34(s1): s112001

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