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同轴视觉传感
相关语句
  coaxial visual sensing
     Detection of weld dimension in open keyhole laser welding based on a CMOS coaxial visual sensing system
     基于同轴视觉传感的激光穿透焊接焊缝尺寸检测
短句来源
     Base on a CMOS coaxial visual sensing system,the optical radiation feature of the keyhole and weld pool in Nd∶YAG laser full penetration welding was analyzed,and the detection of the weld dimension was realized.
     利用CMOS同轴视觉传感系统,通过分析匙孔和熔池区域光辐射的特征,对Nd∶YAG激光深熔焊接的焊缝形态进行了检测。
短句来源
     The experimental results indicate that it is effective to monitor weld penetration in laser deep penetration welding based on the energy balance model of keyhole front wall by using coaxial visual sensing system.
     研究结果表明:基于同轴视觉传感和小孔前壁材料气化能量平衡建立的激光深熔焊缝熔深提取模型,可以有效实现激光深熔焊缝熔深的监测。
短句来源
  “同轴视觉传感”译为未确定词的双语例句
     COAXIAL VISUAL SENSINGTECHNOLOGY IN Nd: YAG LASERWELDING WITH HIGH POWER
     大功率Nd:YAG激光焊接过程同轴视觉传感
短句来源
     The influence of coaxial shielding gas flux on keyhole was studied by processing the captured coaxial image of keyhole.
     通过对利用同轴视觉传感系统所采集的Nd∶YAG激光深熔焊接过程中小孔图像的处理研究了同轴保护气流量对激光深熔焊接过程中小孔的影响。
短句来源
     The iterative equation to extract the keyhole depth is founded according to the energy balance met by evaporation of the keyhole front wall and the extracted radial keyhole dimension in coaxial visual monitoring, and the weld penetration is monitored in the Nd: YAG laser deep penetration welding process based on the extracted keyhole depth.
     基于激光深熔焊接过程中稳态下小孔前壁材料气化满足的能量平衡以及在同轴视觉传感监测中提取出的小孔的径向尺寸建立了小孔深度的提取迭代方程,并基于小孔的深度实现了焊缝熔深的同轴视觉传感监测。
短句来源
  相似匹配句对
     Vision
     视觉
短句来源
     COAXIAL VISUAL SENSINGTECHNOLOGY IN Nd: YAG LASERWELDING WITH HIGH POWER
     大功率Nd:YAG激光焊接过程同轴视觉传感
短句来源
     Detection of weld dimension in open keyhole laser welding based on a CMOS coaxial visual sensing system
     基于同轴视觉传感的激光穿透焊接焊缝尺寸检测
短句来源
     Development of 3D-Vision Sensing Technique
     三维视觉传感技术进展
短句来源
     Study of Weld Tracking Control System Based on Visual Sensor
     基于视觉传感的焊缝跟踪控制系统
短句来源
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A dichroitic mirror is designed to extract video signal from axis of laser beam with high power, which resolves the problem of difficultly extracting coaxial video signal from laser welding pool. The mirror is set in laser path whose inclination angle is 45° with axis of laser beam. The coaxial visual sensing system to monitor high power Nd: YAG laser welding process is established based on this light path of extracting video signal. The median filter and homomorphic filter are designed to remove low frequent...

A dichroitic mirror is designed to extract video signal from axis of laser beam with high power, which resolves the problem of difficultly extracting coaxial video signal from laser welding pool. The mirror is set in laser path whose inclination angle is 45° with axis of laser beam. The coaxial visual sensing system to monitor high power Nd: YAG laser welding process is established based on this light path of extracting video signal. The median filter and homomorphic filter are designed to remove low frequent noise between rows and to enhance images based on analyzing the characteristics of imaging signal. Edges of welding pool and keyhole are extracted based on image segmentation with threshold. In order to get precise shape parameters of welding pool and keyhole, edges are fitted by Hough transform and the sizes of welding pool and keyhole are obtained from the fitted results.

利用半透半反分光镜片成功地解决了激光焊接同轴视觉传感技术中同轴成像光信号分离提取难的问题,建立了大功率Nd:YAG激光焊接过程同轴视觉传感系统。针对无辅助照明光的激光焊接同轴视觉图像成像信号的特点,设计了相应的中值滤波和同态滤波来消除图像的低频噪声和增强图像,并基于图像阈值分割技术搜索、检测出了熔池和小孔图像边缘的位置。最后,利用Hough变换对图像边缘进行曲线拟合得到熔池和小孔边缘曲线的拟合方程并从拟合结果中求得熔池和小孔的二维尺寸。

The influence of coaxial shielding gas flux on keyhole was studied by processing the captured coaxial image of keyhole. The results show that the coaxial shielding gas has great influence on the upside of keyhole and its influence on keyhole bottom is weak. For more flux of coaxial shielding gas, the radial dimension of outer edge of keyhole increases but the radial dimension of inner edge of keyhole varies little. The distances from the centers of keyhole edges to that of laser spot decrease with increasing...

The influence of coaxial shielding gas flux on keyhole was studied by processing the captured coaxial image of keyhole. The results show that the coaxial shielding gas has great influence on the upside of keyhole and its influence on keyhole bottom is weak. For more flux of coaxial shielding gas, the radial dimension of outer edge of keyhole increases but the radial dimension of inner edge of keyhole varies little. The distances from the centers of keyhole edges to that of laser spot decrease with increasing the flux of coaxial shielding gas, which indicates that the vertical axis of keyhole is nearer to that of laser beam. In general, coaxial shielding gas has little influence on keyhole.

通过对利用同轴视觉传感系统所采集的Nd∶YAG激光深熔焊接过程中小孔图像的处理研究了同轴保护气流量对激光深熔焊接过程中小孔的影响。研究表明,同轴保护气流量的变化对小孔上部的影响较大,而对小孔内部的影响很弱。而在较高气流量下,小孔外边缘的径向尺寸随同轴保护气流量的增加而减小,而小孔内边缘的径向尺寸变化很小。小孔内、外边缘中心到激光光斑中心的距离随着同轴保护气流量的增加而减小,说明随着同轴保护气流量的增大小孔竖直轴线越来越靠近激光束轴线。

Base on a CMOS coaxial visual sensing system,the optical radiation feature of the keyhole and weld pool in Nd∶YAG laser full penetration welding was analyzed,and the detection of the weld dimension was realized.The results show that,when the welding was proceeding in keyhole opening mode,a low brightness field can be observed inside the high brightness of laser irradiation area.With the increasing of the welding speed,the dimension and the attenuation degree of the low brightness field are decreased,and moved...

Base on a CMOS coaxial visual sensing system,the optical radiation feature of the keyhole and weld pool in Nd∶YAG laser full penetration welding was analyzed,and the detection of the weld dimension was realized.The results show that,when the welding was proceeding in keyhole opening mode,a low brightness field can be observed inside the high brightness of laser irradiation area.With the increasing of the welding speed,the dimension and the attenuation degree of the low brightness field are decreased,and moved to the hind weld pool.By the analyzing of the variation of the attenuation degree and the keyhole front wall angle,the relationship between the optical radiation feature and the weld dimension was established,and the detection of the weld dimension was realized.

利用CMOS同轴视觉传感系统,通过分析匙孔和熔池区域光辐射的特征,对Nd∶YAG激光深熔焊接的焊缝形态进行了检测。结果表明,在匙孔穿透型激光深熔焊接中,匙孔在工件背面穿透将导致光辐射衰减区域的出现,衰减区域的尺寸和光辐射衰减的程度均随着焊接速度的增加而减小,且相对于匙孔的前沿,其位置向熔池的后方移动。通过分析匙孔区域的光辐射衰减程度和匙孔前壁角度的变化,将光辐射分布的特征与焊缝的尺寸结合起来,建立了两者之间的对应关系,从而实现了焊缝尺寸的检测。

 
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