Author Affiliations
Abstract
1 Research Center of Laser Fusion, CAEP, Mianyang 621900, China
2 Laboratory of Precision Manufacturing Technology, CAEP, China
The designs of inertial confinement fusion (ICF) targets, which field on ShenGuang III, are becoming more complex and more stringent in terms of assembly precision. A key specification of these targets is the spatial angle alignment accuracy. To meet these needs, we present a new spatial angle assembly method, using target part’s 3D model-based dual orthogonal camera vision, which is better suited for the flexible automation of target assembly processes. The two-hands structure micromanipulate system and dual orthogonal structure visual feedback system were investigated by considering the kinematics, spatial angle measuring, and motion control in an integrated way. In this paper, we discuss the measurement accuracy of spatial angle assembly method, which compared the real-time image acquisition with the redrawing 2D projection. The result shows that the assembly method proposed is very effective and meets the requirements of angle assembly accuracy, which is less than $1^{\circ }$. Also, this work is expected to contribute greatly to the advancement of other target microassembly equipments.
ICF target fabrication spatial angle target assembly High Power Laser Science and Engineering
2017, 5(2): 020000e9
1 国防科学技术大学理学院， 湖南 长沙 410073
2 北京控制工程研究所， 北京 100190
星载InSAR干涉基线矢量方位角的测量精度对整个系统的测绘精度有着十分重要的影响。针对星载InSAR测量系统对其干涉基线矢量方位角的测量要求，给出了一种基于图像处理的CCD摄像测量方法。利用CCD摄像测量法对主副天线在平面内的相对位移进行了精确测量。分析了系统的理论误差，构建了完整的实验系统，并对光学靶标的固定步长位移进行验证性实验测量，实验结果与理论分析值具有较好的一致性，测量系统的测量精度优于1σ,证明了该测量方法具有很好的可行性。
测量相机 光学合作靶标 干涉基线矢量 靶标质心坐标 metrology camera optical target assembly interferometric baseline vector target centroid coordinates
