點光柵 的英文怎麼說
中文拼音 [diǎnguāngzhà]
點光柵
英文
polka dot raster-
Researching texture mapping and anomalistic raster image be used in virtual reality. moreover getting good visual impression
重點研究了一維、二維紋理貼圖以及不規則光柵圖像在虛擬場景中的應用,並取得了滿意的視覺效果。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 algorithm has many advantages, such as simple discriminative rule, minimum error, incremental operation, etc
將中點演算法運用於三次樣條曲線的光柵顯示,實現了誤差最小及迭代增量計算的要求。To see the efficiency curve of a specific grating, and to compare similar gratings, click on the grating # in the far left column of the table above
要查閱指定光柵的效率曲線和比較相似光柵,點擊上表中的最左邊欄的光柵號。With the widely use of raster display, pixel - level algorithm becomes a research hotspot of basic algorithms of computer graphics now
隨著光柵顯示器的廣泛使用,逐點演算法成為當前圖形學基礎演算法中的一個研究熱點。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。This paper is mainly concerned with the structural characteristics and research process of fiber grating strain sensors, successful applications of strain sensors in the bowstring arch bridge, particularly the tie bar cable replacement
文中介紹光纖光柵測力傳感器的結構特點和研究過程,及其在系桿拱橋換索施工中的成功應用。In the part of software design, the initialization of ethernet controller and the process in which ethernet packets are received and sent are studied thoroughly. after analyzing the embedded tcp / ip protocols, the interface card software which can control the whole card, receive and send ethernet packets is completed. lastly, the concept of windows network application based on winsock is presented
在介面卡軟體設計中,重點研究了以太網控制器的初始化和以太網數據包的收發過程,詳細分析了嵌入式tcp / ip協議的實現方法,並編寫了光柵傳感器介面卡軟體,完成了介面卡的整體控制和網路數據的收發。Circular polarization is one of microwave equipment with broad application. its the mostly function is switch linearly - polarized wave into circular polarized wave. grating - circular polarization is one of circular polarization, its advantage is simple structure and ease of processing. it is prone to expand high power and high efficiency range. because circular polarization have expand application.
圓極化器是應用廣泛的微波器件之一,其主要功能是將線極化波轉換成圓極化波。光柵圓極化器是其中的一種,它具有結構簡單,加工實現容易,易於向高頻率、高功率應用擴展等優點。With the focal property and the aberration correcting ability, the varied line - space ( vls ) grating has been successfully used in the areas of astronomical physics, synchrotron radiation, fiber communications and so on. therefore, the ruling of the vls grating is one of the greatest significant tasks of the grating fabrication
變柵距光柵具有像差校正、自聚焦等優點,在天文物理學、同步輻射、光纖通信等領域有著重要的應用,因此,變柵距光柵的刻劃技術一直是國際光柵製作領域的重大課題之一。Simultaneously with the micro - displacement started the processe of the grating sensor measuring the displacement and image collection of the system. the grating sensor ( length gauge ) measures the displacement of the dial gauge with surveying rod. it is delivered to the computer with a block k220 in real time and the dial image by ccd camcorder is shown on the computer screen with the image collection card in real time
在實現微量進給的同時,啟動系統的光柵位移測量過程和圖像採集過程,光柵傳感器(長度計)測得指示表測桿的位移量,由計數卡ik220實時傳送給計算機,由ccd攝像頭攝取的表盤圖像經圖像採集卡在計算機屏幕上得以實時顯示,最後通過對指示表指針位移計算處理與光柵傳感器測量的位移量進行比較,得到指示表受檢點的示值誤差。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 arrangement of light guide units is the research emphases. firstly, the dimensions of light guiding unit are calculated by rayleigh criterion. then, the parameters of sub - micron gratings are designed : the grating period is calculated by the grating equation according to the incident and transmitted angles ; finally, the groove depths of the gratings are arranged to satisfy the uniformity request
導光網點的設計是本文研究的重點,首先利用瑞利判據計算出各導光網點的大小,然後設計導光網點? ?亞微米光柵的參數:按照入射光和出射光的角度,根據光柵方程確定光柵周期;最後,按照均勻性要求確定各導光單元的光柵槽深。It has many unique advantages compared with laser interferometry. and it can achieve higher accuracy and resolution than traditional geometry moir. it has been proved to be very useful in many practical applications, such as microelectronics, ultra - precision manufacturing, bioengineering, medicine, space technology, and material science, etc. in this dissertation, key technologies of nanometer displacement measurement by grating interferometry are systematically investigated, which mainly include measuring theories, designing grating interferometer and new subdividing method for moir interference fringes
作為能夠實現納米級位移測量的技術之一,光柵干涉位移測量技術具有激光干涉儀不具備的獨特優點,可以獲得比幾何莫爾術更高的測量準確度、更高的解析度,在諸如微電子、超精加工、生物工程、未來醫學、航天技術、材料科學等眾多領域有廣泛的應用前景。The paper lays a strong emphasis on discussing the realization of the autocontrol of raster scanning of the scanner in x - y dimension, the " tapping " of the cantilever of the tappingmode afm by a direct digital synthesizer. then a method of parallel communication between dsp and pc in epp mode is given. finally, the author discussed the digital pid closed loop control of the scanner in z - direction, the automatic approaching of the tip using step - motor, and also some electro - magnetic interferences
論文首先簡單介紹了掃描探針顯微鏡的發展、分類、工作原理及應用;接著對ti公司的tms320vc5402dsp的特點及外圍擴展作了簡單介紹;然後分章節重點講述了利用vc5402dsp實現掃描探針顯微鏡的核心部件? ?壓電陶瓷管的x向和y向的光柵掃描控制;藉助直接數字集成器( dds )實現輕敲式原子力顯微鏡的微懸臂的「輕敲」 ; vc5402dsp的主機介面( hpi )與pc機在增強并行口( epp )模式下的通信;論文最後還介紹了掃描管z向的數字pid閉環控制,步進電機的自動進針,並對實際出現的一些電磁干擾問題作了討論。The main parts are as follows : 1 ) at the base of the fabrication methods, the photosensitivity of optical fiber and the uv laser sources are introduced simply, the diffraction characteristics of phase mask are analyzed to get the distribution of refractive index in fiber grating, referent the paper [ 4 ] ( delivered )
全文概括如下: 1 )從常用的製作方法出發,簡單介紹了光纖光敏性和成柵光源,重點分析掩模板的衍射場,從而獲得理想情況下光纖光柵的折射率分佈函數,參考已投論文[ 4 ] 。2 ) the coupled - mode equation analyzing the characteristics of fiber grating is deduced step by step. two methods - the transfer matrix metod and the runge - kuttar method are compared, which are often used to solve the coupled - mode equation
2 )詳細推導用於分析光纖光柵特性的耦合模方程,重點對兩種解耦合模方程的方法進行比較:龍格-庫塔法和傳輸矩陣法。The author first summarizes the basic principle of the fiber laser and several methods to generate ultra - short pulses in the fiber laser, then discusses the q - switched fiber laser and mode - locked fiber laser theoretically and experimentally in detail, meanwhile introduces the research on ultra - short pulses semiconductor laser with a fiber grating external cavity
本文綜述了光纖激光器的基本原理和幾種在光纖激光器中產生短脈沖的方法,重點在理論和實驗兩方面研究了光纖調q激光器和鎖模光纖激光器。同時對光纖光柵外腔半導體短脈沖激光器的特性進行了實驗研究。The hybrid method can simulate accurately both the imaging and polarization - dependent diffraction characteristics of a concave grating. to meet the growing need for flattened passband in a practical wdmsystem, three design methods, namely, the tapered output waveguide structure with air - slots, the three - focal - point method and the analytical method of spatial phase modulation, are introduced to achieve a passband - flattened diffraction grating device
針對實際光通信應用中對通帶帶寬的需求,本文提出了「結合空氣槽的漸變輸出波導結構方法」 、 「三焦點方法」及「顯式公式空間相位調製法」三種使平面集成型衍射光柵波分復用器件獲得平頂型頻譜響應的優化設計方法。分享友人