600 mm长焦平面时间延迟积分CCD的交错拼接  

Interleaving assembly of TDICCDs on 600 mm focal plane

作　　者：孙斌[1] 李景林[1] 张星祥[1] 任建岳[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《光学精密工程》2014年第11期2908-2913,共6页Optics and Precision Engineering

基　　金：国家863高技术研究发展计划资助项目(No.863-2-5-1-13B)

摘　　要：为了满足空间宽幅相机大视场的需求,研究了对多片CCD器件进行拼接以获得超长焦平面组件的方法。使用长线阵时间延迟积分(TDI)CCD拼接仪,按照设计位置和精度要求把17片TDICCD器件拼接到焦平面板上,用销钉定位,获得了长为600mm、像元为69 000个的超长焦平面。然后,对完成拼接的焦平面组件进行了高低温循环试验、热真空试验和振动试验。实验结果表明,焦平面组件的结构设计和材料选取满足力学/热学要求。对完成拼接的600mm长焦平面组件进行了TDICCD拼接精度的检测,检测结果显示拼接误差小于3μm。将该超长焦平面组件用于遥感相机,通过成像实验获得了清晰的无缝宽幅图像。上述结果证明600mm长焦平面组件满足空间宽幅相机的应用需求。A method to assemble muti-chip CCD devices together for a long focal plane assembly was proposed to meet the need of a space wider format camera for large field of view.By using a long array Time Delay Integration CCD（TDICCD） mosaic apparatus,17 TDICCD devices were stitched onto the focal plan board with an interleaving assembly method according to the accuracy requirements,and fixed by plugs,then an extra long focal plane with a length of 600 mm,pixels of 69000 was obtained.The experiments on the completed focal plane assembly were performed by a temperature cycling test,a vacuum thermal test and a vibration test,and the results show that structure design and material selection of the focal plan assembly meet the mechanical and thermal requirements.The accuracy measurment result of focal plane shows that the stitching error is less than 3 μm.The extra long focal plane was applied to a remote sensing camera,and the seamless wider format image was captured.These results testify that the 600 mm long focal plane assembly meets the application needs of wide format remote sensing cameras.

关 键 词：空间遥感 遥感相机 时间延迟积分CCD CCD拼接 视场交错拼接 超长焦平面 

分 类 号：TN386.5[电子电信—物理电子学] V447.3[航空宇航科学与技术—飞行器设计]