Design of large frame and framing camera with continuous rotating mirror

LI Jian; WANG Wei; XIAO Zheng-fei; SHANG Chang-shui

doi:10.3788/OPE.20122009.1883

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Design of large frame and framing camera with continuous rotating mirror

Article | 更新时间：2020-08-12

- Design of large frame and framing camera with continuous rotating mirror
- Optics and Precision Engineering Vol. 20, Issue 9, Pages: 1883-1889(2012)
- 作者机构：
  
  中国工程物理研究院流体物理研究所,四川绵阳,621900
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20122009.1883
  CLC： TB872
- Received：17 April 2012，
  
  Revised：13 June 2012，
  
  Published：10 September 2012
- 稿件说明：
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李剑, 汪伟, 肖正飞, 尚长水. 大画幅等待式转镜分幅相机系统设计[J]. 光学精密工程, 2012,20(9): 1883-1889

LI Jian, WANG Wei, XIAO Zheng-fei, SHANG Chang-shui. Design of large frame and framing camera with continuous rotating mirror[J]. Editorial Office of Optics and Precision Engineering, 2012,20(9): 1883-1889
李剑, 汪伟, 肖正飞, 尚长水. 大画幅等待式转镜分幅相机系统设计[J]. 光学精密工程, 2012,20(9): 1883-1889 DOI： 10.3788/OPE.20122009.1883.

LI Jian, WANG Wei, XIAO Zheng-fei, SHANG Chang-shui. Design of large frame and framing camera with continuous rotating mirror[J]. Editorial Office of Optics and Precision Engineering, 2012,20(9): 1883-1889 DOI： 10.3788/OPE.20122009.1883.

摘要

采用共轴设计理论和控制离焦的方法

设计了画幅尺寸达30 mm18 mm的大画幅等待式转镜分幅相机。该相机同时具备相对孔径大和分辨率高的特点

对底片的相对孔径为空间方向1/15

扫描方向1/35;静态目视分辨率为46 lp/mm

动态目视分辨率为35 lp/mm;总画幅数为80

摄影频率为110

~510

frame/s。相机的高速转镜部件采用光纤传感器系统来产生和传输转速信号

避免了高速直流电机对转速信号的干扰

确保了测速准确度。研制的相机已应用于爆轰物理和冲击波物理实验中

并采用210

frame/s的拍摄频率对爆轰过程进行了试验记录

得到了高分辨率的图像。试验结果表明:设计的相机画幅尺寸大、空间分辨率高

适用于冲击、爆轰和弹体姿态等试验过程和目标的拍摄。

Abstract

A large frame and framing camera with a continuous rotating mirror is developed under the coaxial imaging theory and a controlling defocusing range. With the frame size of 30 mm18 mm

it shows a large relative aperture and higher resolution. Moreover

its big stops are 1/15 for the spatial direction and 1/35 for the scanning direction. The static visual resolution and dynamic visual resolution of the camera are 46 lp/mm and 35 lp/mm

respectively

and it can offer the number of frames of 80 and framing rate from 110

frame/s to 510

frame/s. Furthermore

the high speed rotation mirror in the camera uses a fiber sensor system to produce and transfer the rotation signals

which eliminates the influence of the electromagnetic disturbance from a high speed rotating electromotor on the rotation signals and ensures the measurement accuracy. The camera has been applied to the detonation and shock wave physics experiments and the experimental processing has been recorded at a framing rate of 210

frame/s. Obtained results demonstrate that the camera has larger frames and higher resolution and is suitable for the various experiments of shocking

detonation

projectile attitude and target photography.

关键词

Keywords

references

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