非球度 的英文怎麼說

中文拼音 [fēiqiúdù]
非球度 英文
asphericity
  • 非 : Ⅰ名詞1 （錯誤） mistake; wrong; errors 2 （指非洲） short for africa 3 （姓氏） a surname Ⅱ動詞1 ...
  • 球 : 名詞1 （以半圓的直徑為軸 使半圓旋轉一周而成的立體; 由中心到表面各點距離都相等的立體） sphere; glo...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  1. The optical manufacturing for off - axis aspheric mirrors has become increasingly challenging for two reasons. the mirrors, in addition to being larger, are more aspheric and off - axis in order to meet the requirement of next generation space camera, which is commonly configured as three - mirror - anastigmat ( tma ) to get both wide fov and high resolution, and the required accuracy is more stringent

    近年來，人們提出了「離軸三反消像散」 （ tma ）結構來滿足下一代空間相機「詳查」和「寬覆蓋」的技術要求，該結構中要求使用三塊離軸非球面反射鏡，而大口徑、高精度離軸非球面反射鏡的製造技術是研製tma結構空間相機的主要技術瓶頸之一。
  2. In the thesis, the general situation of the domestic and abroad developments in the field of the numerical control interpolation algorithm for aspheric surface machining is reviewed firstly, for the poorness of recent numerical control interpolation algorithm, an numerical control interpolation algorithm that based on the genetic algorithm ( ga ) and neural network ( nn ) is introduced

    在數控系統中，它是生成加工軌跡的一個最基本的子程序，在很大程度上決定了數控機床的加工精度和最大進給速度。本文首先綜述了國內外非球曲面超精密加工中所運用的插補演算法的發展概況。
  3. Aspheric optical compound machine tool ( aocmt ) which integrates grinding, lapping and polishing is developed. the influences of motion errors on grinding accuracy are analyzed. according to homogeneous coordinate transition model, the postposition processing algorithm in multi - axis numerical control machining is deduced

    3 、研製了集銑磨成型、研磨、拋光於一體的光學非球面復合加工機床（ aocmt ） ，分析了各種運動誤差對銑磨精度的影響；根據空間齊次坐標的變換模型，推導出多軸數控加工的後置處理演算法；通過五軸數控聯動， aocmt機床能夠以法向方式加工出任意復雜的光學表面，銑磨精度穩定在8 m之內。
  4. In the first part, the basic knowledge of particle scattering in meteorology and physics was introduced. the particles to be discussed include aerosol particles, fog droplets and raindrops and the em wave band in the discussion is near - infrared. in the second part, the mie theory was briefly reviewed and was applied to investigate the scattering characteristics of spherical atmospheric particles, the result shows that in the visibility measurement meter using forward - scattering method, when the working wavelegth is between 0. 8 m ~ 2 m, the scattering angle is between 25 ~ 40, the distinguishability and the relative scattering intensity would be better than those under other conditions. in the third part, the superellipsoid was used to describe a wide range of shapes such as spheres. ellipsoids and cylinders. an improved t - matrix method which can be used to calculate arbitry shaped particle ' s scattering field was introduced, and the scattering characteristics of non - spherical atmospheric particles was investigated with this method

    計算結果表明，從相對散射強度、同一方向上不同粒子散射的可區分程度來看，在散射式能見度探測儀器中，工作波長介於0 . 86 m 2 m ，探測角度選取前向25度40度時，探測的結果將會是比較理想的。第三部分中，使用超橢球方程來統一描述各種非球形粒子的形狀，然後使用t矩陣方法計算了一些形狀的非球形粒子的近紅外散射特性。另外，在本文中還針對球形粒子的散射場提供了一種三維可視化方法，使對散射場強度的空間分佈的理解更加簡單，直觀。
  5. For its unparalleled optical properties, aspheric optical parts are obviously used in many fields such as military affairs, astronaviation, aviation, nuclear energy, chronometer and some important civil industry fields. especially in the modern national defense industry, along with the development of model weapons, the use of aspheric optical parts will be more and more extensive, with even bigger size and higher surface quality and face accuracy

    非球面光學零件以其優良的光學性能在軍事、航天、航空、核能、天文以及重要的民用工業領域都有廣泛的需求，尤其是在現代國防工業中，隨著型號武器的發展，非球面光學零件的使用越來越廣泛，所需要的尺寸也越來越大，其表面質量及輪廓精度要求也越來越高。
  6. Several test results of other, nff - axis aspheric mirrors are also given. all of the mirrors have accuracy better than 1 / 40x, and have fulfilled the demands by designer

    實踐證明，本文的研究適用於大口徑離軸非球面反射鏡的加工，有效地提高了非球面的加工效率和精度水平。
  7. This dissertation presents improved methods for both testing results analysis and aspheric mirrors fabrication concerning computer controlled optical surfacing ( ccos ) technology to improve its efficiency and accuracy. a new ccos model based on " relative tool path " is proposed, and a method is developed to solve and evaluate fabricating parameters

    目前ccos （ computercontrolledopticalsurfacing ）技術被廣泛用於離軸非球面反射鏡的製造，本文針對該技術中涉及到的一些問題開展較為深入的研究，以進一步提高離軸非球面的加工效率和精度。
  8. In this paper, we brought forward an innovative idea : according to the characteristics of easy deformation of ultra - thin mirror, we employ a sphere mirror, which is easier to fabricate and test, to replace the aspherical mirror, then the sphere mirror is deformed into an aspherical one by active optics technology. on this purpose, we need to study the mechanism and method of shaping a spherical mirror into an aspherical one

    由於非球面鏡的加工和檢測都比較困難，因此本文提出了一個大膽的設想:利用超薄鏡易於變形的特點，以加工和檢測難度遠低於非球面的球面來代替非球面，運用鏡面的主動控制技術將球面反射鏡變形成所需精度的非球面反射鏡。
  9. Asm 1. 0 contains the entire ccos process, including best - fit sphere calculating, profiler test and anslysis, virtual grinding and polishing, cnc grinding and polishing, etc. as results, the manufacturing process of a f / 1. 17, 770mm x 200mm rectangular even high order off - axis aspheric mirror is presented as an example in detail

    最後，比較詳細地介紹了770mm 200mm ， f 1 . 17高次離軸非球面反射鏡的加工、檢驗過程，加工后200mm口徑范圍內加工精度達到0 . 013 rms ，完全滿足了設計要求。
  10. In addition, the finite element method ( fem ) was introduced, and we verified above formulas by this method. another important work of this paper is to discuss the principle of choosing the best fitting sphere for ultra thin mirrors

    本文的另一主要內容是討論了選擇超薄鏡最接近球面的原則，分析了以非球面變化梯度法作為選擇原則的原因，並根據實例給出了計算結果。
  11. The mathematic model of the ultra - thin spherical mirror is to be treated as elastic thin shell. then the predigested model, i. e., bended beam, used in qualitative analysis was proposed, and its deflection and stress formulas under the freely supported condition were set up. based on an off - axis aspherical primary mirror, the relationship of aspherical surface error ( rms ) in tangential plane with bended beam ’ s radius r, position s of concentrated load p and geometry length l of arc was analyzed

    根據這一設想，本文建立了超薄鏡的數學模型?薄殼，並提出了強制力作用下超薄鏡的簡化模型?曲梁，推導了曲梁在簡支情況下受力變形的撓度公式，並結合一個實例，計算出曲梁變形后與所需非球面的面形殘差（ rms ）在子午方向與曲梁弧長l 、曲梁半徑r及集中力位置s的關系及滿足面形精度的r和s范圍，分析了弧矢方向的rms ，得出了同時滿足子午和弧矢方向面形要求的l 、 r和p 。
  12. When the machining tools is perfected, it can process all of quadric curves and high degree curves with high surface form precision. at the same time, the its structure is very simple processing size range is large and its efficiency is high, so it will greatly reduce the cost of processing of aspheric parts

    該機床完善後，可加工所有二次曲線和高次曲線，並能保證較好的零件面形精度，該機床結構簡單，加工尺寸范圍大，加工效率高，將會大大降低非球面加工的成本。
  13. An optimizing arithmetic for calculating the best - fit sphere is also proposed, the result shows better accuracy is reached comparing to " three points method ", from 107. 8umrms to 25. 66umrms. during interferometric optics test with null lens, " nonlinear errors " of the testing coordinates will be introduced. a method based on ray - tracing, nonlinear fitting and coordinate transferring is proposed to eliminate these errors

    在ccos控制模型及理論計算方面，提出了一種適用於高次離軸非球面最接近球面計算的優化演算法，經計算，某矩形離軸非球面最接近球面半徑的求解精度較傳統的「三點法」有了較大的提高，理論加工余量由原來的107 . 8umrms降低到25 . 66umrms ；提出一種基於磨頭與工件的相對位移量的控制模型，並且開發了阻尼卷積迭代演算法，引入「虛擬加工」的概念進行迭代求解和參數評價。
  14. Instrument technology research center ( itrc ) has devoted to limited and diversified ultra - precision components fabrication for more than 30 years, and established various aspheric optics fabrication units, precision centering machines, and micro lens and diffractive optical element ( doe ) machining devices in the past years

    摘要為配合國內光電產業之蓬勃發展，儀器科技研究中心在既有之傳統光學加工與精密光機元件、微光學元件以及非球面光學元件之加工與檢測技術能量上，於94年度引進五軸超精密鉆石車削輪磨機，以擴展完整的光學工程技術陣容，滿足多樣性之研發需求。
  15. By many experiments and analysis, we could prove that our aspheric surface measuring instrument in miniature reaches the request of designment. it could meet the measuring requirement of laboratory and optical shop for grinding surface, its practical testing precision is 1 - 2um. meanwhile it is suitable for final testing of optical element with reasonable accuracy

    通過多次實驗以及數據處理、分析，證明自行設計、裝調的非球面輪廓儀以及測量軟體達到了設計的精度要求，可滿足實驗室，光學加工車間對小型非球面光學元件精磨階段面形的檢測要求，其實用精度為1 - 2um 。
  16. Because of the variety of aspheres and different requirements of dimension and precision, the testing of asphere is more difficult and complex than that of sphere

    非球面的種類繁多，尺寸、精度要求各異，其檢測方法遠比球面復雜和困難。
  17. Because of the variety of asphere and the different requirements of dimension and precision, the testing of asphere is more difficult and complex than that of sphere

    非球面的種類繁多，尺寸、精度要求各異，其檢測方法遠比球面復雜和困難。
  18. Many of the lenses incorporate the latest advances in optical technology, and feature high - quality aspherical elements and ad ( anomalous dispersion ) glass for superior sharpness, contrast, and color fidelity

    大部份的konicaminolta鏡頭均結合了最先進的光學技術，以及具有高質素非球面及超低色散（ ad ）鏡片，為您提供一流的銳利度、對比度及色彩真實度。
  19. The surface testing of aspheric and optical part is especially difficult, which is big scale and high precision

    尤其是大型高精度的非球面光學零件，面形檢測難度更大。
  20. The precision of polishing of optics depends on the precision of grind. the general procedure of processing aspheric optics is coarse grinding, fine grinding, polishing and measuring

    光學元件的拋光精度取決于精磨精度，非球面光學元件的加工工序簡略的可分為粗磨成形、精磨成形、拋光、檢測。
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