aperture plane 中文意思是什麼

aperture plane 解釋
採光平面
  • aperture : n. 1. 孔，隙縫。2. （照相機的）光圈；孔徑，口徑。
  • plane : n 懸鈴木屬樹木。n 1 平面，水平面，面。2 （知識等的）發達程度，水平，階段。3 【航空】機翼面；〈常 ...
  1. This setup, known as a conoscope, is shown in figure 14. 2 and consists of two stress - free plane - convex lenses a and b and a diaphragm c having a small aperture

    此裝置稱為錐光鏡，如圖14 2所示，它由a和b兩個無應力平凸透鏡和一個帶小孔的光闌c組成。
  2. In practice the surfaces of interferometer plates cannot be worked perfectly plane, and in consequence the plate separation h always varies over the aperture.

    實際上，干涉儀兩板表面不可能加工得完全平，因而板的間隔h在孔徑范圍內總是改變的。
  3. Polarimetric synthetic aperture radar ( polsar ) investigates the transverse vectorial nature of plane em waves and provides the complex scattering matrix of a scatterer. scattering polarimetry is sensitive to the shape, orientation, and dielectric properties of scatters

    極化合成孔徑雷達（ polsar ）研究電磁波的矢量特徵，通過測量和分析目標的極化散射特性，獲取目標的介電常數、物理特性、幾何形狀和取向等方面的大量信息。
  4. This setup, known as a conoscope, is shown in figure 14. 2 and consists of two stress-free plane-convex lenses a and b and a diaphragm c having a small aperture.

    此裝置稱為錐光鏡，如圖142所示，它由A和B兩個無應力平凸透鏡和一個帶小孔的光闌C組成。
  5. This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and

    本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。
  6. However, if the plane of the selector aperture is not precisely coplanar with that of the first image, then diffracted rays originating from outside the area defined by the aperture may contribute to the diffraction pattern

    然而，如果選擇孔的平面與第一次成像不是正好共面，源自孔指定區域外部的衍射線可能影響衍射模型。
  7. The solution of the interior problem has been obtained by the fem method. ensuring the continuity of the tangential electric field across the aperture plane, the electromagnetic e and h has been gained

    分別採用有限元法和矩量法分析封閉腔體和半無限空間的電磁場，在孔徑面上進行邊界條件匹配，從而得出極化雙工柵中的電磁場特性。
  8. The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system

    本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。
  9. Now, since the aperture can only be inserted in the one fixed plane it follows that the first image should be formed in this plane and the diffraction lens focused on to it

    現在，由於孔可以僅僅被嵌入所屬的一個指定的平面，第一成像就應該出現在這個平面並且衍射透鏡聚焦在其上。
  10. The results of the axial and transversal intensity distributions of gaussian beams and 0 - order bessel - gaussian beams show that the results by the optimized laguerre - gaussian truncated series are in good agreement with those by the fresnel diffraction integral method if the integration plane is not close to the aperture

    對高斯光束和零階貝塞爾高斯光束的軸向和橫向光強分佈的計算結果表明：當積分面不是很靠近光闌時，用參數最佳化選取的拉蓋爾高斯截斷級數法與用直接數值積分所得結果符合很好。
  11. Analyzing the axial intensity of plane waves diffracted nonparaxially by a small circular aperture

    平面波經小圓孔非傍軸衍射的軸上光強解析分析
  12. Measurement of phase difference caused by plane mirror for laser launched and received in common aperture

    共孔徑偏振耦合分光系統中反射鏡造成的相位延遲差的測量
  13. The quantitative expression for speckle correlation function is formulated, in which the scattered intensity profile reciprocated on the surface plane acts as the aperture function in van cittert - zernike theorem

    我們首先得出了散斑相關函數的定量表達式，該式表明散斑相關函數實際上是在vancittert - zernike定理中等效地將散射輪廓函數反演到散射體平面內作為散射孔徑函數的結果。
  14. In this article, at first present the state of the millimeter wave object detection technology and discuss the common theories and principles of it, and chiefly analysis the principles 、 constitutes of the system 、 key technology of the millimeter wave focal plane array imaging system and the synthetic aperture imaging system

    本論文首先總結了毫米波目標探測技術的國內外發展動態及毫米波目標探測技術的一般理論和原理，並重點分析了毫米波焦平面成像系統和合成孔徑成像系統的原理，系統組成及其關鍵技術。
  15. Characteristics of propagation function of plane wave diffracted by small circular aperture

    平面波經小圓孔衍射軸上傳播函數的特性
  16. Research on the radiated characteristic of uwb aperture in the condition of plane waves

    平面波激勵的超寬帶天線口徑輻射特性研究
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