first diffuser 中文意思是什麼
first diffuser
解釋
第一擴散段-
This paper studies the diffuser ' s influence on the fadw ' s running properties experimentally including the inner wall and outer wall of diffuser and the backpressure of the diffuser. to prevent the gas of fadw from leaking into the laser cavity because of the effect of layer and turbulence the leak - proof flakes are designed. first the method of the leak - proof flake design is studied and then its influence on the properties of fadw is studied experimentally
實驗研究了擴壓器對fadw工作性能的影響，提出了擴壓器結構和超音速噴管相對布局參考數據；研究了氣動窗口側壁防漏片的結構對氣動窗口性能的影響，並給出其工程設計方法；同時還研究了擴壓器不同的背壓對整個fadw作性能的影響，據此提出了擴壓器與引射器結合的設計方案，從而為大壓比、高性能的fadw的設計提供了進一步設計參考方法。 -
Standard lamp and diffusers are very important calibration elements, in chapter three, first uv and vuv radiometric standard for calibration are introduced. then the fabrication and characteristics of baso4 diffuser and alminium diffuser are researched, the baso4 diffuser ' s hemispheric reflectance and bi - directional reflectance distribution function were measured and compared with lambtian surface, and the deviation from that of lambtian surface is given. in the experiment, al diffuser ' s brdf is researched, obtain the change of spectral characteristic of al diffuser, compare al diffuser ' s brdf before and after coated with al + mgf2, and different al diffusers with different surface roughness
鋁漫反射板作為一個漫反射光學元件安裝在太陽紫外光譜監視器的入射狹縫前，太陽紫外光譜監視器在軌測量時，太陽輻射入射到鋁漫反射板后進入入射狹縫，光譜輻照度的角度是變化的，本章測量了鋁漫反射的相對雙向反射分佈函數，研究了鍍膜（ al + mgf _ 2 ）前後光譜反射率的變化，漫反射的光譜特性及漫反射板表面粗糙度對相對雙向反射分佈函數的影響，使得測量數據反演成為可能。
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