红外技术2025，Vol.47Issue(4)：421-428,8.
自动门控电源对像增强器性能的影响
Influence of Auto-Gated Power Supply on the Performance of Image Intensifier
摘要
Abstract
To explore the relationship between the cathode pulse and signal-to-noise ratio(SNR),MCP voltage,imaging clarity,voltage between the MCP and anode,brightness stability,and the dynamic range of an image intensifier using different auto-gated power supplies,experiments were conducted using the same image intensifier tube with two types of auto-gated power supplies.The results show that the DC voltage of the cathode under low illumination can effectively improve the SNR of the image intensifier.Reducing the intermediate value of the MCP voltage can enhance the limited resolution and MTF of the image intensifier to a certain extent.A constant voltage between the MCP and anode can significantly improve the brightness stability of the image intensifier,and the maximum random fluctuation,steady-state drift,and maximum steady-state deviation under saturated illumination are substantially improved.The maximum working illuminance of the image intensifier with both types of auto-gated power supplies exceeds 1×104 lx,and the new auto-gated power supply can further expand the dynamic range of the image intensifier.关键词
像增强器/自动门控电源/信噪比/传递函数/极限分辨力/亮度稳定性Key words
image intensifier/auto-gated power supply/SNR/MTF/limit resolution/brightness stability分类
信息技术与安全科学引用本文复制引用
李亚情,张立昀,宋奇庚,王光凡,许灵吉,张旭,杨壮,高天礼,周盛涛,李晓露,宝元喜,杜培德,戴靖昊,何俊..自动门控电源对像增强器性能的影响[J].红外技术,2025,47(4):421-428,8.基金项目
国家自然科学基金(11535014). （11535014）
