quarter plate 中文意思是什麼

quarter plate 解釋
【攝影】照相乾片 〈3 1/4?×4 1/4?英寸〉;同尺寸的照片。

  • quarter : n 1 四分之一。 ★3/4通常不說 three fourths 而說 three quarters 2 一刻鐘,十五分鐘;一季〈四季結賬...
  • plate : n 1 厚金屬板 〈cf sheet〉 板(片);(記有姓名等的金屬)牌子,(尤指醫生的)招牌,藏書牌;【印刷...
  1. A quarter-wave plate for, say, green light is not a quarter-wave plate for any other color.

    舉例來說,綠光的四分之一波片,對其它顏色的光來說就不再是四分之一波片。
  2. The orientation of the principal stresses relative to the directions of the polarizer and first quarter-wave plate is of course immaterial.

    主應力相對于起偏鏡和第一個四分之波片方向的方位,當然是無關緊要的。
  3. A two - dimensional plain strain finite element model of infinite plate is developed to investigate the ultrasonic wave propagation and scattering on three kinds of cracks : parallel to the surface, 450 oblique angle to the surface, and quarter - circle

    摘要建立了無限長板的具有吸收邊界的二維平面應變有限元模型,在研究了脈沖超聲波在無限長板中傳播的基礎上,對板中平行於表面的裂紋、與表面成45的斜裂紋和四分之一圓周弧形裂紋三種情況的脈沖超聲波散射進行了重點研究。
  4. The typical three - quarter plate has been state of the art in the building of fine movements in saxony since the end of the 19th century

    扁條,製成了這一外觀精緻講究的藝術品。被金
  5. Quarter undulation mica plate

    四分之一光波雲母片
  6. The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions

    全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難,對均勻拉伸載荷作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析,首次全面分析了非穿透裂紋端部場三維影響區范圍,給出了不同形狀三維裂紋前沿離面應力約束因子tz的數值解,並結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數描述。
  7. The directions can be obtained by removing the quarter-wave plate and following the procedure for plane polarized light or by interpolation.

    可將四分之一波片卸去,並按平面偏振光法或內插法來決定其主應力方向。
  8. Biology, etc. owing to many merits has not yet been used to measure parameters of gratings. the paper researches on the subject in view of current lack of it. the main tasks of the paper include : analyzing ellipsometric characteristics of gratings in detail with vector diffraction theory and ellipsometrics ; devising a reflective quarter wave plate at normal incidence according to some ellipsometric characteristics ; making use of normal simplex algorithm during ellipsometric inversion of gratings parameters, inversing ellipsometric parameters with gaussian noise of different standard deviations to simulate actually measured values with examples of isotropic metallic and anisotropic step gratings and testing that ellipsometry about gratings parameters is feasible with the range of certain precision ; discussing choice of incidence angle at length

    本論文的主要工作包括:結合光柵的矢量衍射理論和薄膜的橢偏理論,詳細分析了光柵的橢偏特性;並且根據一些橢偏特性設計出一款正入射反射型單波長1 4波片;在光柵參數的橢偏反演中,引入正單純形法作為反演演算法,分別以各向同性的正弦形金屬光柵和各向異性的階梯型光柵為例,在標準橢偏值的基礎上加入不同偏差的高斯噪聲來模擬實際的橢偏測量值進行反演,在一定精度范圍內得出滿意的光柵參數,說明光柵參數的橢偏測量是可行的;還就入射角的選取問題進行了一定的探討。
  9. Despite the links with a move to west london, the former huracan and river plate player is focused on taking the portuguese giants to the champions league quarter - finals

    盡管賽前路喬與前往西倫敦(去藍軍)的傳聞聯系在了一起,這位前颶風隊和河床球員仍然將在討論的重點放葡萄牙人的冠軍杯八分之一決賽對手身上。
  10. Quarter wave plate

    四分之一波片
  11. The common are quarter - wave plate and half - wave plate. fitted with other polarimetric elements, they can realize converting and rotating of polarization states, and modifying of all kinds of light wave

    光相位延遲器同其他偏光器件相配合,可以實現光的各種偏振態之間的相互轉換、偏振面的旋轉以及各類光波的調制。
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