1) BaSO 4 diffuser plate
硫酸钡漫反射板
1.
Sprayed BaSO 4 diffuser plate is the most Lambertian surface actually used in spectral radiance calibration known by now.
通过实验测量硫酸钡漫反射板 2 5 0～ 4 0 0nm的半球反射率和双向反射分布函数表明 ,实测的双向反射分布函数与假定漫反射板为朗伯表面根据测量的半球反射率计算的双向反射分布函数的相对差值为 6 7% ,实测的双向反射分布函数随散射角的变化可达 2 8%。
2) diffuse reflection board
漫反射板
1.
It is cosine relation between radiant intensity of diffuse reflection board and reflection angle.
漫反射板的辐射强度与反射角成余弦关系,小角度反射时散射光能量很大,在很大角度反射时其辐射功率几乎接近零。
3) diffuser
[英][di'fju:zə] [美][dɪ'fjuzɚ]
漫反射板
1.
Fabrication of diffuser in UV-VUV space remote sensing instrument
紫外-真空紫外空间遥感仪器漫反射板的制备
2.
It is mainly caused by the relatively larger uncertainty(4%) in the irradiance calibration of FEL standard lamp and uncertainty(4%—6%) in the measurements of the diffuser bidirectional reflectance distribution function(BRDF).
在紫外波段,使用常规手段实现高精度的辐射定标是比较困难的,这主要是由于标准灯的定标不确定度约4%和漫反射板双向反射分布函数(BRDF)的测量不确定度4%—6%所致。
3.
Under the condition that FEL standard lamp was assumed to be a uniform point source,the illuminating factors of both sources were corrected,in the mean time,two kinds of diffusers were involved in the experimental re.
同时利用两种漫反射板对此修正进行了实验研究,得到了采用两种漫反射板标定的光谱辐射计亮度响应度有很好的一致性(1%)的结论。
4) aluminium diffuse plate
铝漫反射板
5) standard diffuse reflectance surface
漫反射标准板
6) semicircle diffusion reflector
半圆形漫反射板
1.
A theoretical method of estimating the instantaneous thermal efficiency and day average thermal efficiency of a heat storage glass-metal evacuated solar collector with and without semicircle diffusion reflector was presented,which shows that the thermal efficiency of the solar collector with diffusion reflector is 6.
利用该模型计算出理论的瞬时热效率及平均热效率,并确定半圆形漫反射板与真空管的最佳距离。
补充资料：漫反射
光照射在粗糙面上向各个方向反射的现象。因粗糙面各处凹凸不平，各点的法线方向互不平行，在平行光照射下反射光线也互不平行。人们能从各个方向看到本身不发光的物体，就是因为其他光源发出的光在物体各个粗糙表面上发生漫反射的缘故。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条