EVALUATION OF AN AUTOMATIC SYSTEM FOR DETECTION AND POSITIONING OF SMALL PORE DEFECTS USING DIGITAL RADIOGRAPHY

被引：3
|
作者：
Lindgren, Erik [1 ]
Hammar, Lars [1 ]
机构：
[1] Chalmers, Dept Mat & Mfg Technol, SE-41296 Gothenburg, Sweden
来源：
REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 32A AND 32B | 2013年 / 1511卷
关键词：
X-ray Imaging; Digital Radiography; Non Destructive Testing; CALIBRATION; TOMOGRAPHY; GEOMETRY;
D O I：
10.1063/1.4789239
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A recently developed algorithm for positioning of small defects within metal bodies using digital radiography has been experimentally validated. The algorithm has been validated in the high contrast to noise limit. A calibration method has also been developed and validated. The average error in defect interspacings are found to be approximately 0.03 mm with a maximum at 0.2 mm, this is at the same order as the errors predicted by simulations. The relative error in interspacings are all less than 2% which is comparable to simulated ideal case at 0.25%.
引用
收藏
页码：1646 / 1653
页数：8
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