摘要
在铝制漫反射板传统工艺的基础上,提出了紫外-真空紫外遥感仪器使用的铝制漫反射板物理磨砂和化学磨砂的新工艺与检测方法,并搭建了主要测试装置。测试结果表明,新工艺的朗伯余弦辐射特性得到明显改善,在0°与45°入射时,归一化曲线接近标准余弦曲线;300nm处半球反射率均匀度从0.77提高到0.98;200～400nm处半球反射率平均提高33%;将其应用于紫外-真空紫外遥感仪器上进行了角度响应测试,漫反射特性明显优于美国2002年发射的同类仪器SBUV/2。
A new method of physical frosting and chemical frosting was presented and a testing equipment was developed on the basis of traditional optical grinding method for aluminum diffuser used in uhraviolet - vacuum ultraviolet remote sensing instrument. The test results indicate that Lambert cosine radiation characteristic of the new method has a distinct improvement, and the incidence normalized curve approaches to the standard cosine curve in the 0° and 45°. Moreover,with the new mehtod, hemisphere index of reflection uniformity increases from 0.77 to 0.98 at 300 nm and the hemisphere index of reflection averagely enhances by 33% at 200-400 nm. Proposed method was applied to the ultraviolet-vacuum ultraviolet remote sensing instrument to test the angle response,results show that diffuse characteristic is superior to obviously that of similar instrument SBUV/2 made of America lauched in 2002.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2009年第3期475-481,共7页
Optics and Precision Engineering
基金
国家自然科学基金资助项目(No.40675083)
关键词
紫外-真空紫外遥感
漫反射板
散射特性
碱蚀磨砂
半球反射率
UV-VUV remote sensing
diffuser
scattering characteristics
alkaline corrosion
hemisphere index of reflection
