王红宇,孟立凡,黄广炎,刘春美,王博

• 1:中北大学电子测试技术国防科技重点实验室
• 2:北京理工大学爆炸科学与技术国家重点实验室
• 3:公安部第一研究所

摘要(Abstract)：

使用光幕测速系统对弹丸速度进行检测时,背景干扰光线对测试结果影响较大,为此通过试验分析背景光照强度、狭缝结构、光电二极管封装类型对测速效果的影响。提出使用双层狭缝结构以及黑色树脂封装光电二极管来进一步减弱干扰光线的影响,同时进行信号处理电路的设计,搭建完整的红外光幕测速系统,并进行了弹丸速度测试试验。试验测速范围是200~1 500 m/s,通过与高速摄影、丝网断靶测速数据进行对比,证明改进型红外光幕靶测速系统测速相对误差小于1%。

关键词(KeyWords)： 光幕靶;干扰光线;狭缝结构;光电二极管封装;微弱光电信号处理;弹丸速度测试

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(11772059)~~

作者(Author): 王红宇,孟立凡,黄广炎,刘春美,王博

DOI: 10.16652/j.issn.1004-373x.2018.08.043

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