數值孔徑 的英文怎麼說
中文拼音 [shǔzhíkǒngjìng]
數值孔徑
英文
aperture, numerical-
These ideas explain why high numerical aperture, apochromatic lenses can separate extremely small details in blue light
這就是在使用大數值孔徑復消色差物鏡時用藍光照明可獲得超級解析度的原因。This paper analyses the critical angle method that often use in focus detected. we receive two relations, the first relation between refractive index of the critical - angle prism and focus - error signal ; the second relation between numerical aperture of object lens and out - of - focus error signal
本文針對伺服系統中常用的調焦方法-臨界角方法進行了分析，理論上得到臨界角棱鏡的折射率、物鏡的數值孔徑與離焦誤差信號的關系。Numeral results of dsif at radial crack tips of ellipse and square cavities are provided. then the influences of different shape cavities upon the dsif at the crack of their edges are discussed. 5. scattering of sh - wave by a radial interface crack at the edge of arbitrary - shape - cavity is studied
給出了橢圓孔和方孔孔邊徑向界面裂紋尖端動應力強度因子的數值結果，討論了在不同形狀孔、不同入射波數、不同入射角和不同材料常數組合情況下孔邊徑向界面裂紋尖端動應力強度因子變化的規律。Integrated the work on theory and experiment, the paper provides technical performance material at large about the automating and humidifying character of the centrifugal nozzle with firing pin type, high pressure and little aperture to the manufacture and user. with the valuable reference during the selecting the equipment and ascertaining the parameters, the users could select and control the humid parameter
課題的理論與試驗兩方面工作相結合，為撞針型高壓小孔徑離心式噴嘴的霧化加濕性能提供了較為詳細的技術性能資料，為生產廠家和用戶在設備選型和參數選擇過程中，提供了有價值的參考，便於用戶正確而經濟地選擇、控制濕度參數，有效調節噴嘴孔徑、噴水初溫和噴水壓力的大小。The feasibility and some advantages of employment of sil have been discussed. the numerical aperture are calculated when laser pulse is defocusing. in contrast with traditional microscopy objective, the employment of solid immersion lens can effectively increase the numerical aperture of the recording system ; thereby it can increase the volumetric density and decrease the demand of the incident laser power
當脈沖聚焦點相對于固體浸沒透鏡底面離焦時，對系統的有效數值孔徑進行了計算，結果表明採用固體浸沒透鏡離焦的方式進行記錄，系統的有效數值孔徑最低可增大到固體浸沒透鏡插入前的折射率倍，其數值孔徑的理論極限值為存儲介質的折射率。The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore
第一章回顧了孔結構在當今國內外的研究現狀，包括混凝土測孔方法的研究、孔結構模型的研究及孔結構與強度關系的研究現狀，介紹了孔結構研究方面的一些最重要的成果；第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料測孔技術的原理，並討論了水泥基多孔材料孔隙分析中常用的表徵參數，也說明了壓汞法測孔對研究結果的影響因素，指出了壓汞法在孔結構研究中的局限性；第三章是著重分析了孔隙率與強度關系模型的發展歷程，並對已有的模型進行了比較分析，指出了原有模型的不足之處；第四章在「綜合集成」的基礎上，提出了混凝土孔結構復合體模型和孔系統的物理模型，並模擬了該模型下由各單體並聯形成的復合體的斷裂過程，最後根據所建模型編制了相應的計算程序，可根據輸入的孔徑分佈與水泥含量等參數，實現混凝土理論強度的計算；第五章對第四章模型中出現的模型參數進行了相應的試驗數據對比分析，根據回歸分析的方法得到了反映基體強度特徵的k值，並從理論上探討了水泥含量、彈性模量和表面能的修正對混凝土強度計算產生的影響，檢驗模型的正確性；第六章是結論與展望，根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。Numerical aperture of step - index multimode optical fibers by output far - field radiation pattern measurement
用輸出遠場輻射圖測量確定步長指數多模光纖的數值孔徑Effective numberical aperture
有效數值孔徑The non - singular extended 2 x 2 jones matrix is deduced to give the precise description of angular property under normal and oblique incidence. consequently, we draw a very important conclusion that the pif is insensitive to the incidence, and has a large numerical aperture
詳細推導了適用於偏振干涉濾光片角度特性分析的無奇異點擴展2 2瓊斯矩陣，對正入射和斜入射下的偏振干涉濾光片光學特性進行了精確描述，並分析出偏振干涉濾光片具有大數值孔徑的重要特性。We simulate the practicality system to experimentalize, obtain the relation between defocus and focus error signal, make it a condition that na = 0. 625 and n = 1. 7979
並模擬實際系統，實驗得出當臨界角棱鏡的折射率n = 1 . 7979 、物鏡的數值孔徑na = 0 . 625時，離焦量與離焦誤差信號的關系曲線。When awg regarded as space unchanged linear system, an analytical solution of out - waveguide field is obtained by using the impulse response function. the crosstalk transformation on account of apertometer and waveguide spacing is also obtained by numerical calculation
本文還將awg視為空間不變線性系統，使用點擴展函數的方法，求出awg系統輸出分佈的解析式，通過數值計算得到串擾與數值孔徑及其波導間距的關系。The outline of fiber ' s tip has very great influence on the coupling efficiency. it is reported, using the way of grinding and melting to form a microlens on the fiber ' s tip, can increase fiber ' s numerical aperture, reduce the ellipticity of laser, and improve coupling efficiency
光纖端面的形狀對耦合效率有很大的影響，有文獻報道，採用拋磨燒熔等加工方法，可在光纖端面形成一個微透鏡，增大光纖的數值孔徑，對入射激光進行橢圓度校正，從而提高耦合效率。1. firstly, the mathematical model of fiber pair with the factors of reflector shape and inclination is established. then, the numerical simulation is fulfilled, along with a series of rules of the influence on intensity modulation property caused by multimode fiber parameters, the factors of reflector shape and inclination
然後，採用數值模擬的方法系統地研究了多模光纖參數（包括光纖對軸間距、光纖芯徑和光纖數值孔徑） 、反射面傾斜因子以及形狀因子對rim - fos強度調制特性的影響規律。It produce general planning of fibre optic pressure sensor design, established pressure signal measuring mathematic model, deduce lights numerical aperture in bent optical fiber, analyses some kind of photoelectric detection mode. it expound characterization of optical fiber illuminating source and light detector, exhaustively analyse of illuminating source - optical fiber, light detector - fiber optical and fiber optica - fiber optic
論文提出了光纖壓力傳感器的總體方案，建立了壓力信號測試的數學模型，推導出了光在彎曲光纖中的數值孔徑，分析了光電探測的幾種方式。詳盡闡述了光纖、光源和光探測器的特性，對光源?光纖和光探測器?光纖的耦合效率進行了分析。Further, if you close down the aperture diaphragm, you will observe that objectives of higher numerical aperture " grasp " more of these colored spectra than do objectives of lower numerical aperture
當光欄關小后，數值孔徑大的物鏡比數值孔徑小的物鏡產生的光譜狀點要多一些。Numerical aperture measurement of graded - index optical fibers
分級指數光纖的數值孔徑測量Hence the value of high numerical aperture for such specimens
因此對這標本需採用大數值孔徑的物鏡。Optical fibres - part 1 - 43 : measurement methods and test procedures ; numerical aperture
光學纖維.第1 - 43部分:測量方法和試驗規程.數值孔徑Aerospace series - fibres and cables, optical, aircraft use - test methods - part 302 : numerical aperture
航空航天系列.飛機光纖和光纜.試驗方法.第302部分:數值孔徑Based on the theories of optical pressure forces, this paper deduce the formula along z axial, analyze the effects of microscope objective na laser, profileon trapping force
本文從光作用力的原理出發，推導出沿z軸方向的作用力的公式，分析了物鏡數值孔徑、激光束模式對光作用力的影響。分享友人