目的光柵 的英文怎麼說
中文拼音 [mùdeguāngzhà]
目的光柵
英文
destination raster-
The relationships between the number of diffraction order and grating pitch, refractive index of medium, light wavelength, incidence angle and azimuth angle are investigated
討論了入射角、入射方位角、入射光波長、光柵柵距、介質折射率與矩形光柵衍射級次數目間的關系。With the widely use of raster display, pixel - level algorithm becomes a research hotspot of fundamental algorithms of computer graphics now
隨著光柵顯示器的廣泛使用，逐點演算法已成為目前圖形學基礎演算法中的一個研究熱點。Targets in the radar ppi have the main property of the little area, a few targets and irregular change of grey. so it is difficulty to detect and track the target. the study of the radar ppi is very few inland and abroad. with the development and implement of high resolution radar and high resolution raster display, target _ tracking and detecitng based on the radar ppi will be feasible. it ' s great excellence is to increase time accumulation compare with the detecting techenicial of the traditional radar
雷達ppi中目標的特點是面積小，目標或可能的目標多，灰度、形狀變化無明顯規律，所以檢測和跟蹤目標比較困難。基於雷達ppi的研究國內外甚少，隨著高解析度雷達和高分辨光柵顯示器的發展，基於ppi的雷達目標檢測和跟蹤成為可能。與傳統的雷達目標檢測技術相比，其潛在的優勢在於大大增加了信號的時間積累，因此有可能提高檢測性能。Now a very interesting time - resolved x - ray spectrometer, in which an transmission grating is coupled with a x - ray streak camera has been a x - ray spectrograph
目前通常採用透射光柵與條紋相機耦合的方式作為x射線譜儀。Introduction of the current status and development of key technologies of the three - dimensional contour measurement. creation of the measuring means of free curved surfaces of objects, based on the passive stereo visual technology and the active liquid crystal grating encoding technology
綜合結構光法和立體視覺法，在對傳統視覺傳感器結構統一的基礎上，提出了基於被動式雙目立體視差技術和主動式液晶光柵編碼技術傳感器，實現物體的三維形貌數字化測量。The grism spectra, taken with hubble and analysed with software developed at the space telescope - european coordinating facility in munich, germany - can be obtained for objects that are significantly fainter than can be studied spectroscopically with any other current telescope
「哈勃」所使用的棱柵以及由位於慕尼黑的空間望遠鏡歐洲合作機構開發的軟體，能夠獲取比其他現有望遠鏡上分光鏡能研究的暗得多的目標。A new binocular vision sensor based on lcd grating technique is developed. it has the functions of three traditional vision sensors : point scanning, line scanning and grating code
研製了基於液晶光柵技術的新型雙目視覺傳感器，無需硬體改動，只需改變軟體即可實現點掃描、線掃描和光柵編碼型視覺傳感器的功能。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。A quick spectroscopic diagnostic system for the flame temperature is set up in this paper. it consists of an optic imaging system, a scanning system, a dispersive system, a photoelectricity conversion cell, operational amplifiers, a computer - based data collection system and a data processing. the temperature profile varying with the time can be quickly measured by this system
目前光學診斷由於其相應快、精度高，屬于非接觸式測量手段，在研究中得到越來越多的應用，這里要介紹的就是本文中建立的一套光學診斷系統，它由高壓燃燒室、旋鏡掃描儀、旋鏡控制器、小型光柵攝譜儀、光電轉換裝置，微弱信號放大器以及數據採集系統組成。It is difficultly to enhance the resolution of encoders if commonly depending on thinner engraving grating. therefore, at present, the primary technology to improve the encoders " resolution is the interpolation technology of the moire stripe signal
由於單純依靠製造上刻劃更細的光柵來提高光電軸角編碼器的解析度是很難實現的，目前普遍採用光電信號細分技術來提高光柵系統的精度和解析度。Combined with the actual developing situation, a new design is originated, that is, non - contact torque measurement through grating sensor. this paper has also presented the study of whole measurement system. according to actual experimental condition, a new torque measurement system of water turbine ' s principle axis is designed and tapped
文章結合扭矩測量的國內外發展現狀和實際，根據國家自然科學基金資助項目「水輪機主軸機械繫統動態特性研究」提出的方案，採用光柵式傳感器進行扭矩的非接觸式測量，並對其整個測量系統進行了研究。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。However, fiber bragg grating sensing technology in the present has the disadvantage of too small system capability of sensors, this limits its applications in great and complicated engineering
但目前的光纖光柵傳感技術受到系統檢測容量過小的限制，不能應用於大型復雜工程的監測使用。Based on the requirement and target of the projects, firstly, pcf bragg grating are investigated theoretically and experimentally. moreover, the effects of filling high refractive index material ( nematic liquid crystal, nlc ) in pcfs on the transmission mechanism and propagation properties are studied by using plane - wave method and finite - element method ( fem ), farther, several novel pcfs are proposed and designed. lastly, we propose and demonstrate a clad - pumped er3 + / yb3 + - codoped fiber laser, which integrate all performances of broad - band tunable wavelength, uniform output power spectrum, high repeat frequency and high average power to together
本論文選題于國家973 、 863以及國家自然科學基金等項目，結合課題的要求和主要目標，在對光子晶體光纖（ pcfs ）傳輸特性研究的基礎上，首先對光子晶體光纖光柵進行了理論和實驗研究;然後，採用平面波展開法和有限單元法分析了在光纖的空氣孔中填充高折射率液晶對光纖傳導機制和傳輸特性的影響，提出並設計了幾種新型光子晶體光纖;最後，提出並研製成功連續可調諧、輸出功率譜均衡的全光纖化、高功率包層泵浦鉺鐿共摻光纖激光器實驗樣機。When selecting gratings, you must choose a wavelength range with a width equal to the spectral range entry in the spectrometer grating selection chart
當選擇光柵是，您必須選擇與光譜儀光柵選擇圖表中的光譜覆蓋范圍條目里寬度相等的波長范圍。Optical fiber grating sensors have been widely applied to key civil engineering for its excellent apperceive and anti - wear ability, however, nowadays the package and actual engineering application of optical fiber grating sensors cannot be realized without the macromolecule glue, the aging ability of macromolecule glue restricts the wear capability of optical fiber grating sensor, using metal - package technique without glue for optical fiber grating sensors can resolve these questions mentioned above
光纖光柵傳感器由於其優異的感知和耐久性能在重大土木工程檢測中得到了廣泛的應用，然而目前光纖光柵傳感器封裝開發以及實際工程應用時基本離不開高分子膠粘劑，而高分子膠粘劑「短命」的蠕變、老化等性能嚴重地制約了光纖光柵傳感器耐久性能的發揮，採用無膠金屬化的方法對光纖光柵傳感器進行封裝，可以避免上述問題的發生。The paper is concerned with the eigen functions of optical fields in dielectrics, the theories of optical waveguide eigen mode, the characteristics of optical waveguides diffracted field, the theories of mode coupling in optical waveguides and the spectral response theories and simulating method for arrayed waveguide grating. in this paper, a set of beam propagation theory based on eigen modes analysis is set up which afforded theoretical basis for designing and analyzing awg devices. experiment of fabricating sio _ ( 2 ) layer by using porus silicon is also carried out in this paper, which is a new method for fabricating waveguide cladding layer
本文以設計陣列波導光柵器件為目標，對介質波導光場的本徵波函數，光波導本徵模理論，光波導衍射場特性，光波導模式耦合理論和awg器件的光譜響應特性及模擬方法進行了深入研究，建立了一套基於本徵模式場分析的光波導光束傳輸理論，為波導器件的設計提供正確的理論基礎，並嘗試了利用多孔硅生長厚的二氧化硅，用於製作波導包層材料。At present, the design of light guide plate in and abroad is based on geometrical optics principle. in this dissertation, a novel light guide plate fabricated by gratings is proposed, including its designing and fabricating method
目前，國內外生產的導光板都是基於幾何光學原理進行設計的，本文提出一種新型導光板? ?光柵型導光板的設計和製作方法。Therefore, fiber gratings have numerous applications in almost all the realms of optical fiber, especially in wavelength - division multiplexing ( wdm ) all - optical networks. this dissertation presents a detailed study of the following three types of fiber gratings : fiber bragg grating fabricated with cladding mode suppression fiber, linearly chirped moir fiber grating, and long - period fiber grating with rectangular index modulation
本文以目前在wdm全光網中有良好應用前景的三種類型的光纖光柵（用包層模抑制光纖製作的光纖布拉格光柵、線性啁啾moir光纖光柵、矩形折射率調制型長周期光纖光柵）的理論和設計為研究內容。Most of today ’ s demodulation techniques rely on optical filtering method, such as bulk optical edge filters, scanning fiber fabry - perot filters, wdm fiber couplers, acousto - optic tunable filters and mach - zehnder filters
目前，以布喇格光纖光柵（ fbg : fiberbragggrating ）為傳感器件的傳感器已成為研發主流。分享友人