红外技术2024，Vol.46Issue(10)：1107-1118,12.
紫外像增强器在航空发动机燃烧诊断中的应用
Application of Ultraviolet Image Intensifiers in Combustion Diagnostics of Aero-engines
摘要
Abstract
In the combustion process of aero-engines,excited-state free radicals such as OH*,NO*,and NH*emit faint self-chemiluminescence in the ultraviolet(UV)band,which changes rapidly with the progress of combustion.UV image intensifiers,featuring up to a million-fold electronic gain and nanosecond-level shutter speed,can capture the transient structure of the combustion flow field in the UV band,laying the foundation for the quantitative measurement and interpretation of the variation rules of combustion characteristics with multiple physical parameters.This paper summarizes the application of UV image intensifiers in optical diagnostics of aero-engine combustion,including passive optical diagnostic techniques for imaging OH* self-chemiluminescence,and active optical diagnostic techniques using laser excitation for OH imaging.Finally,in line with the requirements of high spatial and temporal resolution detection for new types of aero-engines,the development direction of UV image intensifiers in combustion diagnostics is pointed out.关键词
紫外像增强器/航空发动机光学诊断/紫外燃烧诊断Key words
ultraviolet image intensifier/aero-engines optical diagnosis/ultraviolet combustion diagnosis分类
电子信息工程引用本文复制引用
马俊卉,王岭雪,胡婧玲,郑德智,闻浩诚,王兵,蔡毅..紫外像增强器在航空发动机燃烧诊断中的应用[J].红外技术,2024,46(10):1107-1118,12.基金项目
国家自然科学基金项目(U2241226). （U2241226）
