| 采用数字射线DR成像的焊接质量检测 |
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| 引用本文： | 孔凡琴,路宏年. 采用数字射线DR成像的焊接质量检测[J]. 无损检测, 2008, 30(1): 20-22 |
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| 作者姓名： | 孔凡琴 路宏年 |
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| 作者单位： | 北京航空航天大学,北京,100083 |
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| 摘 要： | 提出了一种基于数字射线成像的焊缝质量检测方法。采用先进的非晶硅数字检测系统获取信息丰富的原始图像,叠加曝光降低图像噪声;依据射线衰减的指数规律对图像进行对数解调,凸现缺陷特征;运用非锐化掩模滤波对特征进行增强。使焊缝缺陷特征清晰,检测质量达到胶片最高级B级水平。
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| 关 键 词： | 数字射线检测 焊缝 动态范围 非锐化掩摸滤波 |
| 文章编号： | 1000-6656(2008)01-0020-03 |
| 修稿时间： | 2007-09-17 |
Welding Quality Inspection by Digital Radiography |
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| KONG Fan-Qin,LU Hong-Nian. Welding Quality Inspection by Digital Radiography[J]. Nondestructive Testing, 2008, 30(1): 20-22 |
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| Authors: | KONG Fan-Qin LU Hong-Nian |
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| Affiliation: | KONG Fan-Qin(GE Inspection Technology; Shanghai 200233; China) LU Hong-Nian(Beihang University; Beijing 100083; China); |
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| Abstract: | This paper briefly presents a method of inspecting welding lines on the basis of digital radiography. The advanced system based on the amorphous silicon detector was applied to acquire rich original image. And the noise was decreased by averaging the images. Log-calculation was used to show the defects in welding. The defects were amplified by the Unsharp masking algorithm. Then the image quality was improved to the B level the highest in the traditional film. |
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| Keywords: | Digital radiographic testing Welding line Dynamic range Unsharp masking |
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