摘要
根据流场显示使用要求,分析了国内外发展的多种用于流场显示的纹影技术优缺点,研究了聚焦纹影系统组成及其设计思路。根据聚焦纹影技术原理,提出采用LED阵列光源替换菲涅耳透镜的技术方案,该方案不仅能够实现大视场聚焦纹影成像,而且能够对LED光源像切割时实现直接纹影成像。
According to the application requirements of flow visualization,the advantages and disadvantages of various shlieren techniques for flow visualization developed at home and abroad were analyzed,and the composition and design ideas of focusing schlieren system were emphatically introduced.According to the principle of focusing schlieren technology,it is proposed to use LED array light source to replace Fresnel lens,which can not only realize focusing schlieren imaging in large field of view,but also realize direct schlieren imaging when cutting the image of LED light source,and obtain preliminary results by the way.
作者
王敏
谢爱民
黄训铭
WANG Min;XIE Aimin;HUANG Xunming(School of Electronics and Information Engineering,Sichuan University,Chengdu 610064,China;Institute of Automation of China Weapons and Equipment Group,Mianyang 621000,China;China Aerodynamics Research and Development Center,Mianyang 621000,China)
出处
《兵器装备工程学报》
CAS
北大核心
2020年第10期244-248,共5页
Journal of Ordnance Equipment Engineering
关键词
纹影技术
流动显示
大视场纹影
聚焦纹影
Schlieren technique
flow visualization
large field Schlieren
focusing schlieren
