红外定量检测缺陷的热传导理论分析模型  

Heat Conduction Model for Quantitative Infrared Detection of Defects

作　　者：戴文远[1] 李常有[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004

出　　处：《红外》2013年第4期43-46,共4页Infrared

摘　　要：在红外定量检测缺陷领域,现有的理论方法大多是通过规则模型对缺陷进行模拟,再基于图像比较法或对图像求一次、二次导数得到被检测缺陷的尺寸的。这些方法都会带来较大的误差。本文利用颗粒理论,首次将颗粒之间的热传导问题应用于缺陷的定量检测中。针对一种模拟的缺陷建立了热传导方程,为红外定量检测缺陷提出了一种新的思路。In the field of infrared quantitative defect detection, the current theoretical methods simulate the defects mostly by using a rule model and then obtain the size of the detected defect by using an image comparison method or the first and second derivative of the image. All of these methods may bring about a large data error. The heat conduction among particles based on the particle theory is applied in quantitative defect detection for the first time. According to a simulated defect, the heat conduction equation is established. It provides a new idea for the quantitative infrared defect detection.

关 键 词：无损检测技术 热传导 颗粒理论 

分 类 号：TN215[电子电信—物理电子学]