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

页码：1646 / 1653

页数：8

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