| 三代像增强器的高速选通控制设计 |
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| 引用本文： | 刘宇,郭城,张保民. 三代像增强器的高速选通控制设计[J]. 南京理工大学学报(自然科学版), 2010, 34(1) |
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| 作者姓名： | 刘宇 郭城 张保民 |
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| 作者单位： | 南京理工大学,电子工程与光电技术学院,江苏,南京,210094;西安应用光学研究所,微光夜视技术国防科技重点实验室,陕西,西安,710065;西安应用光学研究所,微光夜视技术国防科技重点实验室,陕西,西安,710065;南京理工大学,电子工程与光电技术学院,江苏,南京,210094 |
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| 摘 要： | 针对水下成像等主动探测应用的需要,设计了一种能够使三代微光像增强高速选通工作的控制电路。应用串联雪崩管电路原理,设计了一种适应三代光阴极的高速选通的控制装置,通过分析和试验,实现了选通控制电路的参数匹配,产生一个-800 V左右、频率125 Hz的选通脉冲,使三代像增强器光阴极能够在3.3、4.9和15.2 ns宽度的脉冲下高速选通工作;测试该选通的三代像增强器极限分辨率,结果表明其极限分辨率在各选通脉冲宽度下基本一致,与不选通时的极限分辨率相差不超过3.8%。
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| 关 键 词： | 微光夜视 选通成像 三代像增强器 高速 |
Design of High-speed Gated Circuit for Third Image Intensifier |
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| LIU Yu,,GUO Cheng,ZHANG Bao-min. Design of High-speed Gated Circuit for Third Image Intensifier[J]. Journal of Nanjing University of Science and Technology(Nature Science), 2010, 34(1) |
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| Authors: | LIU Yu GUO Cheng ZHANG Bao-min |
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| Affiliation: | 1.School of Electronic Engineering and Optoelectronic Technology/a>;NUST/a>;Nanjing 210094/a>;China/a>;2.Key Lab for LLL Technology of National Defense Science & Technology/a>;Xi'an Institute ofApplied Optics/a>;Xi'an 710065/a>;China |
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| Abstract: | According to the requirement of developing active image system,a high-speed gated circuit for the third image intensifier is designed.By applying the principle about a series-avalanche tubes circuit,a gated control device is designed for the cathode of a 3rd generation image intensifier.Through the analysis and experiment,the parameters of the gated circuit are matched.Some gated pulses of-800 V and 125 Hz are engendered,making the photocathode of the 3rd generation image intensifier operate with these high... |
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| Keywords: | lower-light-level night vision gated imaging third generation image intensifier high speed |
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