单面法红外检测钢板内壁缺陷温度场研究  

Study on Temperature Distribution Rule of Steel Plate with Inner Surface Defect Inspected by Single-sided Thermography

作　　者：沈立华[1] 孙丰瑞[1] 杨立[1] 秦强 

机构地区：[1]海军工程大学船舶与动力学院热工教研室,湖北武汉430033 [2]聊城市规划建筑设计院,山东聊城252000

出　　处：《激光与红外》2006年第1期19-22,共4页Laser & Infrared

摘　　要：利用导热微分方程和钢板的初始条件及边界条件,用数值计算分析了二维钢板模型随缺陷长度大小、深度变化时单面法加热钢板的表面温度场分布,在红外热像仪的分辨率允许的前提下讨论单面法红外检测钢板内表面缺陷的可行性。Based on two-dimensional heat conduction differential equation with its initial and boundary condition, the surface temperature distribution of steel plate which is heated on inspection surface, changing with the length and depth of defect, is analyzed by numerical analysis. In the range of infrared imager＇s precision, the feasibility of examining steel plate with defect in inner surface by single-sided thermography is discussed.

关 键 词：红外检测 单面法 内表面缺陷 温度场 

分 类 号：TN219[电子电信—物理电子学]