bend loss 中文意思是什麼
bend loss
解釋
變道損失-
On the base, we designed the waveguides " structure and fabrication parameter. and in the design of symmetric y - branch of proton - exchange s ingle - y phase linbo3 modulaor, we used finite difference beam propagation method to analyze and compare the optical transmission loss of different s - bend y - branch
本文對質子交換linbo _ 3單y相位調制器的重要部件y分支進行了深入的研究，比較了不同s彎曲形式的y分支過渡長度與損耗的關系，並計算出間距250 m時的最小彎曲長度。 -
On the basis of the analysis and compare, we designed the least length of s - bend y - branch to decrease the transmission loss when the space between the outport is 250jjm. we also analyzed thoroughly dependence of half - wave voltage and bandwidth on the width, the length of modulator ' s electrodes and the gap between two electrodes
對于調制器的電極本文也進行較為深入的研究，探討了電極寬度、電極長度、電極間距對半波電壓的影響，並據此對單y相位調制器的電極結構進行了優化設計。 -
Via theory testify, bend loss has been neglected when curved radius is larger than 2mm
理論證明在彎曲半徑大於2mm的情況下，彎曲波導所引起的輻射損耗很小。 -
Method : the loss of physiologic bend of spine after implants were taken out along with different methods of hone implantation of 59 followed - up patients with thoracic - lumbar fractures treated by posterior instrumentation during jan. 1990 to may. 2004 were analysed by standard of image examination
方法：以影像學結果作為觀察指標，統計本院1990年1月~ 2004年5月因創傷造成的胸腰椎骨折病例早期行後路內固定術治療情況，並分析隨訪的59例患者術中不同的植骨方法，對內固定拆除后脊柱生理曲度丟失的影響。 -
The results show that improving the rolling velocity and reducing the galvanizing time will result in reduction of strength loss after galvanizing, and increase of bend torsion valve, thus productivity is improved
結果表明：提高收線速度，減少浸鋅時間，鍍后強度損失減小，彎扭值提高，生產效率提高。 -
Second, the mode fields of a strip waveguide and some slab waveguides have been simulated by applying finite - difference time - domain ( fdtd ) method. the curvature radius ; vicinity coupling ; transition loss and power attenuation of a s - shape bend waveguide have been analysed numerically by employing wide angle finite - difference beam propagation method ( fd - bpm ), as well as the coupling loss of optical fiber and waveguide. in addition, the framework of the s - shape waveguide laser has been
其次，應用時域有限差分法，結合波導模式理論對條形與平面波導進行了模場模擬;應用廣角有限差分光束傳播法，對s形彎曲波導的曲率半徑、鄰近耦合、過渡損耗、功率衰減以及波導與光纖的各種耦合損耗進行了數值分析，並在此基礎上，對s形波導激光器的結構作了初步設計。 -
Optical field intensity has been simulated by beam transmission method ( bpm ), bend loss has been calculated by used of the method of conformal transformations, gain has been accounted by the method of lines, and different curved optical waveguides have been compared in the last
採用bpm軟體模擬光場在彎曲波導中的分佈，用保角變換和射線法計算其彎曲損耗及增益，最後對不同結構的彎曲波導進行比較。 -
The accessional loss due to bend is also very small. while the bend angle is 90 degree, the accessional loss is less than idb / m
Sdb m ，且彎曲附加損耗較小，在彎曲角度為90度時，附加損耗小於ldb m 。 -
A s - bend symmetric y - branch has been proposed to obtain lower light transmission loss. 2. the design of electrode structure
在boa結構設計中，為了實現器件的低損耗設計，我們採用上升反正弦s彎曲構成對稱y分支。 -
Based on the theories of bend loss and mode coupling, a model to analyze the characteristics of distributed spatial filtering of bend multimode fiber is given in this paper. then we made numerical simulation by the means of stepwise scan, dichotomy and the four orders runge - kutta. numerical simulation indicated that the distributed spatial filtering of the bend multimode fiber can improve the beam quality
本文從波動理論基礎出發，結合模式耦合理論和彎曲損耗理論，提出了一種用於分析彎曲多模光纖的空間濾波特性的理論模型，並運用逐步掃面法、二分法以及四階龍格-庫塔法對此模型進行了數值模擬。 -
In figure 3 the led source is too dispersive and there is a large light loss at the bend providing only 25 % efficiency in the lightpipe
在插圖3中led光源太分散而且有很大的光損失在彎曲部份，這亦使得光管僅能提供25 %的效率。
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