facula 中文意思是什麼
facula
解釋
n. 名詞 （pl. -lae ） 【天文學】（太陽的）光斑〈cf. macula〉。-lar, -lous adj. 形容詞
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It compute the parameter of deflexion caused by thermal distortion in orbit, deduce the general expression for spreading beam after thermal distortion of reflector and the center deflexion of facula received in ccd. with the method of fixing etc, it put forward the restrain measures adopted accordingly
計算了在軌運行條件下反射鏡面熱變形引起的表面法向偏轉參數，推導了鏡面變形后出射光線的通用表達式以及鏡面變形前後在ccd探測器上的接收光斑中心偏轉量的計算表達式。 -
Finally the influence of facula dithering on the guidance precision is estimated using the influence factor for some of aircraft weapons
通過引入影響因子來評價光斑抖動對制導精度的影響。 -
Equip with facula control pipes, otherwise has alterable focus mirror facula. which can adjust 2mm to 6mm. provide choosing and buying for consumer
配有光斑控制管另備有變焦鏡頭光斑可在2 - 6mm調整，供用戶選購 -
In the displacement measurement based on the principle of laser interference, the gaussian quadrics fitting algorithm is used to fix the central position of facula and raise the location accuracy
在基於兩球面波干涉的長度和距離測量實驗中，運用高斯二次曲面擬合演算法為激光光斑的中心坐標定位，提高了光斑的定位精度。 -
The research is based on a type of low - cost desktop rapid prototyping system which replaces the laser with common uv light. in stereolithography process, once the cross - section contours is obtained through the slicing processing on stl model, it is needed to do more data processing such as inside and outside boundaries recognition, facula radius compensation, scanning and path planning to generate process control data
在光固化快速成型工藝中，當由切片軟體對stl模型進行切片處理得到了層片截面輪廓后，為了形成加工控制數據，必須對截面輪廓進行諸如內外輪廓識別、工藝補償、掃描及加工路徑規劃等一系列的工藝數據處理。 -
Because the element of the far field diagnosis system which is used to detecte facula is ccd, when it works, much types of noise will affect it, and threshold value will affect the efficient signal. in this paper, hartmann - shack wavefront sensor which can detect the phase of beam is studied, what is detected by hartmann - shack wavefront sensor can be transform into far field, and we compare this result with that detected by the far field diagnosis system, and we can know which system is more accurate
事實上， hartmann - shack波前傳感器的ccd在探測光斑陣列時，也同樣受ccd噪聲因素的影響，並且還有波前本身的復原誤差，但是hartamnn - shack波前傳感器的ccd噪聲影響的是波前復原精度，雖然這也將導致事後處理遠場光斑的誤差，但這種誤差與遠場測量系統的誤差相比孰大孰小是本文研究的主要內容。
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