红外成象检测中的缺陷大小评估  

EVALUATION OF DEFECT SIZE IN INFRARED IMAGING TESTING

作　　者：杨黎俊[1] 耿完桢[1] 姜铃珍[1] 邹立勋 魏功明 洪晶[1] 崔振阳 卢元军 

机构地区：[1]哈尔滨工业大学,哈尔滨150001 [2]东北电力试验研究院,沈阳110001

出　　处：《无损检测》1999年第2期65-67,共3页Nondestructive Testing

摘　　要：利用数值方法求解复杂边界条件下三维非稳态的导热方程,并依此对红外成象技术用于金属管内壁腐蚀检测进行了计算机模拟.对检测中判别缺陷大小及最小可检测缺陷的影响因素等作了详细的理论研究.Numerical method was applied to solve the dynamic 3D heat conductivity equation under the condition of complicated boundaries. Computer simulation was presented for the application of infrared imaging technique to the corrosion detection of the inside wall of metal tubes. Theoretical study on the evaluation of defect size and the factors affected the detectabilitv of minimum defects was carried out.

关 键 词：红外线检验 成象 缺陷 评估 无损检测 

分 类 号：TB302.5[一般工业技术—材料科学与工程] TN215[电子电信—物理电子学]