| 脉冲红外热成像无损检测系统分辨力研究 |
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| 引用本文： | 薛书文,祖小涛.脉冲红外热成像无损检测系统分辨力研究[J].激光与红外,2005,35(6):410-412. |
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| 作者姓名： | 薛书文 祖小涛 |
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| 作者单位： | 1. 电子科技大学应用物理系,四川,成都,610054;湛江师范学院物理系,广东,524048
2. 电子科技大学应用物理系,四川,成都,610054 |
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| 基金项目： | 国家自然科学基金—中国工程物理研究院联合基金资助项目(10376006)。 |
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| 摘 要： | 本文从理论上给出评价脉冲红外热成像无损检测分辨能力的依据,并以尼龙试件为例
探讨了检测系统分辨力与缺陷深度、大小及检测时间之间的关系,从理论上给出检测系统对尼龙试件中缺陷深度和大小的检测极限分别为2. 5mm和2. 7mm,以及最佳的检测时间为热脉冲作用后的35 s左右。同时,将理论结果与实验结果作了对比验证。
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| 关 键 词： | 红外热成像 缺陷 无损检测 |
| 文章编号： | 1001-5078(2005)06-0410-03 |
Study on the Detectability of Thermal Pulse Video Thermography Nondestructive Testing System |
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| XUE Shu-wen,ZU Xiao-tao.Study on the Detectability of Thermal Pulse Video Thermography Nondestructive Testing System[J].Laser & Infrared,2005,35(6):410-412. |
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| Authors: | XUE Shu-wen ZU Xiao-tao |
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| Affiliation: | XUE Shu-wen 1,2,ZU Xiao-tao 1 |
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| Abstract: | In this paper the influences of the size and depth of defects and detection time on the detectability of thermal pulsed-video thermography nondestructive testing system are discussed through theoretical analysis,and the criteria to assess the detectability of the testing system as well as theoretical testing limit are given for specific system and material nylon.As for nylon,the optimal detection time is about 35 seconds after the heat pulse flux was applied to sample surface,and detectable depth and size are 2.5mm and 2.7mm respectively.Meanwhile theoretical results and experimental results are compared. |
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| Keywords: | thermography defect nondestructive testing |
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