| 射线实时成像检测图像质量的改进方法 |
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| 引用本文： | 高志凌,任贵芝,王晓娟.射线实时成像检测图像质量的改进方法[J].无损检测,2008,30(8). |
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| 作者姓名： | 高志凌 任贵芝 王晓娟 |
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| 作者单位： | 高志凌,任贵芝,GAO Zhi-Ling,REN Gui-Zhi(华油钢管有限公司,河北青县,062658);王晓娟,WANG Xiao-Juan(华油钢管设计研究院,河北青县,062658) |
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| 摘 要： | 研究了射线实时成像检测时改进图像质量的方法。采用外加磁场的方法矫正钢管剩磁,可克服由钢管剩磁引起的X射线图像畸变。在射线源上方附近及图像增强器输入屏处放置铅板,可减小由射线散射引起的图像噪声。采用独立电源和图像增强器单独接地等手段,可降低设备干扰引起的X射线图像噪声。通过合理选择射线源焦点、焦距和图像放大倍数,减少了X射线实时成像检测图像的不清晰度。
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| 关 键 词： | 射线实时成像检测 图像质量 清晰度 |
Methods of Improving on Image Quality of Real-Time Radiography Inspection |
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| GAO Zhi-Ling,REN Gui-Zhi,WANG Xiao-Juan.Methods of Improving on Image Quality of Real-Time Radiography Inspection[J].Nondestructive Testing,2008,30(8). |
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| Authors: | GAO Zhi-Ling REN Gui-Zhi WANG Xiao-Juan |
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| Affiliation: | 1. North China Petroleum Steel Pipe Co. Ltd; Qingxian Hebei 062658; China; 2. Hebei Huayou Steel Pipe Design & Research Institute Co. Ltd.; China); |
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| Abstract: | New methods were proposed to improve the original X-ray image quality. The distortion of X-ray image caused by remnant magnetism of steel pipe was avoided by adopting additional magnetic field. The noise of X-ray image caused by X-ray scattering was reduced by additional lead pieces. The noise of X-ray image caused by electro magnetic interference was decreased by proper assignment of power supply. And the definition of X-ray image was improved by properly selecting of X-ray source and its focus. |
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| Keywords: | Radiographic testing Image quality Definition |
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