作　　者： ; ; ; ; ; ; ; ;

机构地区： 中国工程物理研究院流体物理研究所

出　　处： 《光子学报》 2013年第9期1065-1070,共6页

摘　　要： 针对～10^8帧/秒或更高速度上的超高速分幅摄影，采用一种成像质量较好的基于会聚光中分光的全口径分光原理，利用具有高速快门控制功能的像增强器、冷却型科学CCD相机、基于大规模可编程集成电路的高速控制器等部件，研制成功了一种高性能的超高速三分幅相机．该分幅相机具有三幅图像的超快拍摄能力，快门速度最高可达3ns，摄影速度则达到3．3×10。帧／秒，并且在较大范围内具有单独调节的能力；图像幅间间隔同时具有任意调节的能力，从0ns到秒级；有效像面面积达到025mm，图像阵列为1024×1024；空间分辨率达到30lp／mm，同时具有较好的线性度和空间响应的均匀性，满足了超高速、大幅面的分幅摄影要求． Aiming at the framing photography frequency of about 10^8 frame/s or above, a kind of 3-frame framing camera with ultra high-speed and high performance is developed and put into operation. The optical principle of the camera is based on splitting the focused imaging light beam in the field of image space. It features good imaging quality and high light energy efficiency. The lens coupled gated image intensifier with high speed shutter control ability, cooled scientific CCD camera and the high speed controller based on large scale field programmable gate array with system trigger and shutter trigger are the main portions. This framing camera can capture 3 frame images with ultrahigh speed of above 3. 3 × 108 frame/s. The minimum exposure time for each image is about 3 ns and can be independently setup in a wide range of from several ns to s. The frame interval time can also be adjusted at discretion step from 0 ns to second level. The effective image size is φ25 mm and image array is 1 024× 1 024. The spatial resolution is about 30 lp/mm. The framing camera features good linearity, good response uniformity, and excellent flexibility in applications.

关 键 词： 分幅相机 门控型图像增强器 科学 相机 分光棱镜

领　　域： [机械工程] [理学] [理学] [一般工业技术]