| MAG焊熔池图像特征及可用信息分析 |
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| 引用本文： | 王克鸿,沈莹吉,钱锋,游秋榕.MAG焊熔池图像特征及可用信息分析[J].焊接学报,2006,27(11):53-56. |
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| 作者姓名： | 王克鸿 沈莹吉 钱锋 游秋榕 |
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| 作者单位： | 南京理工大学,材料科学与工程系,南京,210094 |
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| 摘 要： | 针对MAG焊焊接过程的特点,采用被动式视觉传感的方式,利用近红外CCD摄像机,配合1064nm窄带滤光片和0.1%中性减光片组成的复合滤光系统,很好地排除了弧光的干扰,采集到大量高清晰的MAG焊短路过渡、射滴过渡、射流过渡熔池图像.利用数字图像处理技术对熔池图像进行图像处理,并提取出反映焊接质量的图像特征信息.对于单幅熔池图像进行了灰度分析,并提取了三条熔池图像等值轮廓线;对于连续多帧熔池图像,提出了利用熔池图像差影检测和熔池图像平均灰度来研究MAG焊焊接过程的新思路,为熔化极气体保护焊焊接过程质量控制奠定了基础.
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| 关 键 词： | MAG焊 熔池图像 特征信息 灰度分析 |
| 文章编号： | 0253-360X（2006）11-053-04 |
| 收稿时间： | 06 26 2006 12:00AM |
| 修稿时间： | 2006-06-26 |
MAG welding molten pool image character and useful information analysis |
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| WANG Ke-hong,SHEN Ying-ji,QIAN Feng and YOU Qiu-rong.MAG welding molten pool image character and useful information analysis[J].Transactions of The China Welding Institution,2006,27(11):53-56. |
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| Authors: | WANG Ke-hong SHEN Ying-ji QIAN Feng and YOU Qiu-rong |
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| Affiliation: | Dept of materials, Nanjing University Science & Technology, Nanjing 210094, China,Dept of materials, Nanjing University Science & Technology, Nanjing 210094, China,Dept of materials, Nanjing University Science & Technology, Nanjing 210094, China and Dept of materials, Nanjing University Science & Technology, Nanjing 210094, China |
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| Abstract: | A passive vision sensing system for taking the image of MAG welding molten pool has been set up.Near-infrared CCD and compound filters system composed of 1 064 nm narrow-band filer and 0.1%neutral dimmer film are used to eliminate the arc light disturbance and a lot of clear images are obtained.Image-processing software is used to extract the characteristic information which reflects the welding quality.For the single image,the gray character is analyzed and three equivalent contour lines are obtained.For continuous multi-frame images,the image aberration shade detection and mean gray distribution are put forward to study the process of MAG welding. |
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| Keywords: | metal active-gas welding molten pool image characteristic information gray analysis |
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