柵損耗 的英文怎麼說
中文拼音 [zhàsǔnhào]
柵損耗
英文
grid loss-
As a new component of sensor, fiber grating have many instinctive advantages, such as light in weight, anti - cauterization, anti - interference in electromagnetism, high - sensitivity and compaction in construction. it is very easy to be coupled with fibers and the coupling - loss is slight. using fiber grating ’ s character of sensitivity for stress ; people have done some envelope experiments on structural systems ( such as storied buildings, bridge, railway and dam )
光纖光柵傳感器除了具有重量輕、耐腐蝕、抗電磁干擾、靈敏度高、結構緊湊等優點外，還有其獨特的優越性，如探頭尺寸小，其直徑與光纖等同;易於與光纖耦合，耦合損耗小;波長調制型，抗干擾能力強;集傳感與傳輸於一體且具有極強的復用能力，易於構成傳感網路;測量對象廣泛，易於實現多參數傳感測量等等。The low insertion loss is achieved by optimizing the transistor widths and bias voltages, by minimizing the substrate resistances, and by dc biasing the transmit and receive nodes, which decreases the capacitances while increasing the p1db
通過優化mosfet的柵寬及偏置電壓可以降低插入損耗。在版圖設計中通過增加襯底接觸降低襯底電阻，從而減小插入損耗。另外，為接收和發送端提供直流偏置可以降低p1db 。The polarization - dependent diffraction characteristics of the metallic echelle and the total internal reflection ( tir ) types of diffraction gratings are studied, and optimal design method based on the hybrid diffraction method is presented
針對目前衍射光柵器件在損耗、偏振敏感性等方面的不足，本文對金屬反射型以及內全反射型凹面光柵的偏振相關的衍射特性進行了矢量分析，並基於混合衍射方法提出了更為準確有效的優化設計方法。We have demonstrated a novel voa based on high birefringence fiber loop mirror, which has many advantageous characteristics such as a simple structure, high flexibility, polarization independence, low insertion loss and low price, etc. experimental proof shows that it is convenient to realize the control of optical power by using this voa
2 .利用雙折射光纖環鏡設計並製作了一個結構簡單的可調諧光纖衰減器，具有靈敏度高，偏振無關，低插入損耗和低成本等特性。實驗證明它可以很方便的控制光功率。 3 .提出了一種由布拉格光纖光柵和高雙折射光纖環鏡共同構成波長選擇器件的摻鉺光纖激光器。Fiber bragg grating ( fbg ) sensor is a wavelength - encode sensor. it has many unique characteristics, for example it can be immune from light source disturbance and system loss, now it is one of the current heat research fields in the optical fiber sensing fields
布拉格光纖光柵（ fbg ）傳感器屬于波長調制型光纖傳感器，具有不受光源功率波動和系統損耗等獨特的優點，成為目前光纖傳感領域的研究熱點之一。Fiber gratings have several distinguished advantages, such as compare with fiber, low loss and high responsibility. as sensing element, they encode the sensing information in a wavelength form, which are their distinguished advantages over other transducers. that not only make the sensing information does not depend on loss of the system or fluctuation of then source power but also decrease the cost of sensing system and realize multipoint and distributed sensing
光纖光柵與光纖之間存在天然的兼容性，它不僅具有易與光纖連接、低損耗、光譜特性好、可靠性高等特點，而且作為傳感元件，它具有其它傳感器無可比擬的優點，即感應的信息用波長編碼，而波長這個絕對參量不受光源功率的波動、連接或耦合損耗的影響。Then the theoretical computing methods are presented, in which we emphasize particularly on the plane wave method ( pwm ) and the finite element method ( fem ). with the two methods mentioned above, important parameters such as bandgap, dispersion, leaky loss and so on are calculated, as well as the birefringence of two kinds of mf, which are in two different mechanisms. a new type of optical coupler based on dual - core bandgap microstructure fiber is presented
主要研究內容如下: 1 、利用平面波展開方法和有限單元方法研究了微結構光纖的傳導特性，對三角形、蜂窩形柵格空氣孔包層結構的光子能帶進行了研究，在此基礎上闡述了光子晶體光纖的傳導機制，對折射率引導和光子帶隙引導微結構光纖的波導色散、泄漏損耗和有效模場面積進行了研究。Firstly, we study the photonic band structure of the pcf cladding with triangular and honeycomb air holes lattices. then the guided mechanisms of pcfs are demonstrated. the waveguide dispersion, leaky loss and effective modal area for both index - induce pcf and pbgf are presented
首先對三角形、蜂窩形柵格空氣孔包層結構的光子能帶進行了研究，在此基礎上闡述了光子晶體光纖的傳導機制，對折射率引導和光子帶隙引導光子晶體光纖的波導色散、泄漏損耗和有效模場面積進行了研究。Effects of dispersion decreasing and loss on transmission of bragg solitons in fiber bragg gratings is analyzed by simulating numerically the transform of bragg solitons
結果表明，光柵色散漸減使脈沖的峰值增大，光柵損耗使脈沖展寬，兩者對布拉格孤子在光纖光柵中的傳輸具有互補性，即兩者對布拉格孤子的傳輸作用相反。As a sensor, fbg can be immune from light source disturbance and system loss by transforming sensing information into its reflecting wavelength shift
作為傳感元件，光纖光柵將被感測信息轉化為其反射波長的移動，即波長編碼，因而不受光源功率波動和系統損耗的影響。Among all kinds of demultiplexers, etched diffraction gratings ( edgs ) are regarded as one of the most potential types of planar waveguide wdm devices. this phd thesis focuses on the design, simulation and fabrication of edgs for optical communications
蝕刻衍射光柵是採用平面波導技術製成的集成密集波分復用器件，它具有通道損耗低、串擾小、器件尺寸小、容易擴展通道、製作和封裝工藝相對簡單等優點。The phase - shifted fiber grating was analyzed too. then, numerical analysis on dispersion compensation characteristic of linearly chirper fiber gratings was carried out and the main parameters were optimized
還進一步分析討論了運用普通均勻光纖光柵作為傳輸型器件補償色散這一個新的方案，可使插入損耗大大減小，且光柵的製作簡單。The theory, method and procedure for measurement of the bending loss of single - model quartz fiber by using fiber bragg grating sensor are introduced
摘要闡述了利用布拉格光纖光柵傳感器測量單模石英光纖彎曲損耗實驗的原理、方法和步驟。As a sensor, fbg can be immune from light source disturbance and system loss by transforming sensing information into its reflecting wavelength shift, that is wavelength coding
作為傳感元件，光纖光柵將被測信息轉化為其反射波長的移動，即波長編碼，因而不受光源功率波動和系統損耗的影響。Results from this investigation show that the loss generation within the coolant holes is substantial and that ejection into regions of low static pressure increases the loss per unit coolant mass flow. the results also reveal strong interactions between endwall coolant ejection and secondary flow in the blade passage. the secondary flow has a strong influence on coolant trajectories and coolant ejection delays the three - dimensional separation of the inlet boundary layer on the endwall, chang the secondary flow and reduces its associated losses
本文的研究成果顯示，冷卻孔內產生的損失是主要的，並且低靜壓區域的冷空氣噴射會增加單位冷空氣質量流的消耗；噴射的冷空氣與葉柵端壁流場之間有強烈的相互作用；二次流對冷卻空氣的流動軌跡有較強的影響；冷空氣噴射能延緩端壁入口邊界層的三維分離、改變二次流從而減少其相關損耗。In addition, the optic fiber grating sensors have advantages of linear response, easy to integrate, and low input loss
此外，光纖光柵傳感器具有線性響應、易於集成和插入損耗小等優點。分享友人