摘要
介绍了在宇宙线地面观测系统中经常使用的一种探测器——塑料闪烁体探测器。这种探测器的主要优点是工作稳定、易于长时间野外观测、便于维护及造价低廉，其基本功能即是产生、收集光脉冲信号并将之转换为电脉冲信号。文中介绍了探测器的组成、工作原理及性能特点。这种探测器被广泛用于世界各地的地面宇宙线观测系统。
A new kind of interference fringe used in image processing technique of lens microdeformation testing system is introduced in the paper.In the system the interference fringe of the lens is produced by Twyman Green interferometer.Then the image is transferred into Video Frame Grabber(VFG) and stored in computer in digital data.After the data are processed,the lens surface shape and its microdeformation values will be obtained.By using this system,the surfaces of plane mirror and convex mirror have been measured under different laser power illumination and the cooling conditions.The results show that the system has the advantages of accurate measurement,convenient operation,fast speed and high efficiency,and it will have vast application prospect.
出处
《光电工程》
CAS
CSCD
1997年第3期49-52,共4页
Opto-Electronic Engineering
基金
国家"八五"自然科学基金
关键词
宇宙射线
闪炼探测器
光电信号
信号分析
Deformation measurement,Lenses,Computerised image processing,Twyman interferometer,Interference fringes.
