practical optical system 中文意思是什麼
practical optical system
解釋
實際的光學系統-
Lc apparatus almost meet all the needs of space optical communication such as weight, size, power consume, life, cost, driving voltage, intergration of optics and electricity, programe, optically take ? over aperture, beam scanning, deflexional range and so on. switches, deflexional facilities and scanning equipments which made with lc have been used in the system of labor in space communication. the only bug of lc apparatus is that their answer speed only get microsecond rate or submicrosecond rate. but it is practical for them to be used in special beam capture, scan, deflexion controling which don ’ t concerned with code rate and code type
液晶器件幾乎滿足空間光通信的所有大的指標要求如重量、尺寸、功耗、壽命、成本、驅動電壓、光電集成、可編程性、光學接收孔徑、光束掃描和偏轉范圍等等。液晶光開關、光偏轉器、光掃描器已經開始應用於光纖通信的實驗系統中。液晶類器件應用於光通信的唯一重大缺陷，是其響應速度目前只能達到微秒級或亞微秒級，不過，在不涉及到碼型碼率的空間光束捕獲、掃描、偏轉、控制方面，液晶器件完全可能進入實用化。 -
In term of the probability of communication system and perturbance theory, the model of the effect of srs to error bit ratio in communication system is established. through the way numerical of simulation, limitations to srs to error bit ration of communication system and input optical power, the number of channel etc are discussed. the obtained conclusion has definitely reference value to the design of practical communication
根據數字通信系統幾率的特性和微擾理論，建立了受激喇曼散射對通信系統誤碼率影響的理論模型，並通過數值模擬討論了受激喇曼散射對系統誤碼率、最大輸入功率和通道數等的限制，獲得了一些對實際光通信系統設計有參考價值的結論。 -
3. because traditional coupling system composed with cylinder lens and focus lens has the disadvantages of difficult to encapsulation and modulate, a new practical method brings forward : the output light from laser diode is collimated using a section of optical fiber with the diameter of 600 m instead of cylinder lens, and a sphere ? end lens
3 .針對由柱透鏡和聚焦透鏡組成的組合透鏡耦合系統中存在的封裝和調試困難等問題，提出了:用一段直徑為600 m的裸石英光纖代替柱透鏡，對半導體激光器輸出光束進行準直整形;用球透鏡光纖對準直后的光束進行聚焦，直接實現和光纖耦合，來代替聚焦透鏡和光纖耦合的環節。 -
This product is widely used in the city and country cable network, the data and graph transfer system, the catv wired tv series, the direct and branch connection of the indoor cable, which acts as pigtail storage and connector protection. it is made of coldrolled steel sheets by electrostatic plastic spraying, and has proper tructure and neatly - looking. we can fix the cable by strengthening core in the terminal box, and its ports can be replaced according to the practical engineering requirements. the panel of this product, on which adapter is installed can be replaced optionally by fc, sc, st, lc, and it is also suitable for both ribbon optical fiber cable and common optical fiber cable
廣泛應用於市話農話網路系統數據圖象傳輸系統， catv有線電視系列，用於室內光纜的直通邊接和分支接續，起到尾纖盤儲和保護接頭的作用，採用冷軋鋼板靜電噴塑製成，設計結構合理，美觀大方可將光纜加強芯固定在終端盒內，其埠可根據工程實際需要隨意更換，本產品裝適配器的面板可隨意更換為fc sc st lc同時適用於帶狀光纜和普通光纜。 -
The main idea of this research can be summed up as following words, reflecting light or scattering light upon the surface of measured object formats an image on the photo surface of psd by a optical system, because of the good relationship between the offset of image point in psd and the offset of object thickness, a mathematical model can be founded according to this relationship. it can measure the shift of object thickness through these analyses of movement of image point position in psd, and this device can be tested its reliability with many practical specimens
光學式非接觸厚度-微位移測量儀是在激光三角測量法的基礎上實現的，在本研究方案中，根據象點在psd上的移動量建立與被測物厚度-微位移變化之間的數學模型，通過對象點位置變化的計算，實現被測物厚度-微位移變化量的測量。本文重點闡述了光學式非接觸厚度-微位移測量儀的工作原理，並對測量儀的工作過程進行了分析；對影響測量精度的因素做了討論。 -
The paper is aimed at improving the recognition reliability of the real - time distortion - invariant optical pattern recognition system to meet the requirement of its practical application
針對光學模式識別系統的實用化需要，本論文主要進行了opr系統實時畸變不變識別的可靠性研究。 -
Thus, research on holographic disc storage systems has practical significance. this paper is focused on the design of the optical system of hds
本論文立足於體全息存儲領域的研究前沿，在已有的理論及研究基礎上，著重於盤式體全息存儲器的光學系統設計。 -
This part firstly studies the relation between spectral transmission of the optical system and the thickness of medium. then a linear search algorithm base on analysing of the shape of curve is discussed. the simulation results show that the fitting error and the computing time of the algorithm satisfy the practical measuring requirements
本論文首先討論了光譜透過率與各向異性介質厚度之間的數學關系，然後在分析曲線形態基礎上進行全值匹配，模擬表明，該演算法可以實現曲線完全擬合，擬合時間均在1秒以內，完全符合實際測量要求。 -
Having studied the data tables, we got the relation between optical correlation s / n and distortion parameter ( scale rotation azimuth ) and then constructed the proper rfl, and so the puzzle of distortion of 3d objects in practical opr system is now resolved
從實測數據出發，得出了opr對畸變參數（比例畸變、旋轉畸變、方位角畸變等）的寬容度，並由此構成了與之相適應的參考濾波器庫，從而解決了實用系統中的三維畸變目標問題。 -
This paper offers a pcb automatic test method by using optical video technology, microcomputer control technology and image process technology etc. this method put forward an operable and practical scheme to develop an efficient, steady, accurate and automatic pcb test system
本課題確定了利用光學攝像技術、微機控制技術、圖像處理與分析技術來自動檢測pcb的方法，為研製一種高效、穩定、精確、自動化的pcb檢測系統制定了一個切實可行的方案。
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