遠場 的英文怎麼說

中文拼音 [yuǎnchǎng]
遠場 英文
distant field
  • : Ⅰ形容詞1 (空間或時間的距離長) far; distant; remote 2 (血統關系疏遠) distant in relationship 3...
  • : 場Ⅰ名詞1 (平坦的空地 多用來翻曬糧食 碾軋穀物) a level open space; threshing ground 2 [方言] (...
  1. In the second chapter, the basic theory and method of how to use far - field body - waves to invert for the seismic moment tensor were expatiated systematically. the moment tensor solutions of the march 25, 1998, antarctic plate earthquake ( mw = 8. 1, iris ) and the june 4, 2000, southern sumatra, indonesia, earthquake ( ms = 8. 0 ) were inverted using teleseismic body waves recorded by long period seismograph stations of the iris global seismic network

    並用iris全球地震臺網的遠場體波資料反演了1998年3月25日南極m _ w8 . 1 (據iris )地震的矩張量和2000年6月4日印度尼西亞蘇門答臘南部m _ s8 . 0地震的矩張量。
  2. The notorious hell row was burned down in a fire, and much dirt was cleansed away.

    臭名遠場的閻王路已在一大火中化為烏有,許多焦土灰燼被清除一空。
  3. Each segment of line current can be approximated as a hertzian dipole if each segment is much smaller then a wave length

    因此任意線電流在三度空間之三維向量電磁即可以赫芝電偶極完整之遠場及近近似合成之。
  4. Then, using the opening transmission line model, the deduction of the tem - horn antenna far - field radiation formula is introduced. comparing with the traditional nb antenna array, the brief theory of uwb antenna is analyzed

    然後介紹了應用開路傳輸線理論模型對tem喇叭天線軸上遠場輻射的推導過程,並對比傳統窄帶天線陣列,分析了超寬帶天線陣列的一般工作原理。
  5. Abstract : the far - field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot. by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion

    文摘:從理論上分析了激光經隨機位相板變換后在遠場的光斑特性(包括光斑的形狀、大小、旋轉對稱性、衍射效率以及旁瓣分佈) ,通過比較三種形狀位相元(等邊三角形、正方形和正六邊形)的遠場光斑特性,得知正六邊形位相元結構的隨機位相板更適合於激光聚變中的束勻化。
  6. Abstract : in this paper , a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon. some basic equations of dual beam scan are derived , such as , the position vector for the incident point , the scalar expression for reflected ray , scan pattern on observation plane ect. the far - field asymmetry of the scanning field has been discussed

    文摘:應用幾何光學理論研究了多光束轉鏡掃描的非對稱性,導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程,並研究了掃描遠場的非對稱性。
  7. 3. the acoustic wave impedance coefficient is recovered from the incomplete data of the far field pattern

    對于系數反問題進行了研究,利用遠場模式的不完全數據反演聲波阻尼系數。
  8. The parameters that influence the single photon acquisition probability are the transmitter ' s tracking - pointing error, the far - field divergence angle, the link distance between transmitter and receiver and the receiver ' s antenna aperture

    得到影響單光子捕獲概率的主要參量是發射機的跟瞄誤差、光束遠場發散角、發射機和接收機的鏈路距離和接收機天線孔徑。
  9. The vector - based plane - wave spectrum method ( vpws ) is improved, which can directly obtain the far field diffractive pattern depending on the output near field data in the bor fdtd meshes by use of the deduced formulas in this dissertation

    改進了平面波譜傳播演算法( vpws ) ,推導出的公式可以由borfdtd計算空間內的近輸出數據直接計算出遠場的電磁分佈。
  10. Remote - field eddy current - based non - destructive inspection technology has been widely used in advanced nations with significant effectiveness

    遠場渦流檢測技術在國外發達國家中已充分應用於現,且收效顯著。
  11. As the extensive application of the semiconductor laser diode ( ld ), it become more and more important to evaluate the quantity of laser beam. far - field divergence angle of laser beams is an important parameter about value of laser quality. not only the laser divergence peculiarity in the distance is reflected, but also quality of the correlative laser apparatus and the laser transmission is exactly known

    隨著半導體激光器日益廣泛的應用,對激光光束質量的評價越來越重要,而激光光束遠場發散角是評價激光質量的一個重要參數,它不但能反映距離傳輸時的激光發散特性,而且能準確評估出半導體激光器的品質及激光的傳輸質量。
  12. Compared with the effect of mutual coupling to general antenna arrays, chebyshev - dolph antenna arrays, schelkunoff super - derective arrays and chebyshev - dolph super - derective

    比較了互耦對等幅同相天線陣、 chebyshev - dolph天線陣、 schelkunoff陣和chebyshev - dolph超方向性陣天線遠場方向圖的影響。
  13. Many high - power microwave ( hpm ) sources utilize an azimuthally symmetric output mode such as the tm 01 circular waveguide or the coaxial tem mode as output mode. if radiated directly these azimuthally symmetric modes will generate a doughnut - shaped pattern, with a null on boresight

    許多高功率微波源產生的微波模式都是圓波導軸對稱模式,由於其輸出埠的口徑分佈具有圓對稱性,將導致軸向為零的環狀遠場方向圖。
  14. Far field boundary condition

    遠場邊界條件
  15. Similarly, the paper also makes an analysis of the effect that the truncation error of finite scanning has upon the far - field pattern and then introduces the consequent method of compensation

    隨後分析了掃描面截斷誤差對遠場方向圖的影響,並給出了相應的補償方法。
  16. Application of remote multifrequency eddy - current in metal flaw detection

    遠場多頻渦流技術在金屬探傷中的應用
  17. On the other hand, the electric field and intensity distributions of the he11 mode in the hollow fiber are calculated by using the exact solutions of maxwell equations based on the vector model, and the diffracted near - and far - field distributions of the he11 - mode output beam under the fresnel approximation are studies. we derive an analytical expression on the far - field distribution of the he n - mode output beam in free space and discuss its applicable condition. we also analyze and compare the differences between the he11 - and lp01 - mode output beams, and find that the near - field distribution of the lpoi - mode output beam is a gaussian - like one, but the near - field distribution of the he11 - mode output beam is a doughnut - like one, whereas the far - field distribution of both the lp01 - and he11 - mode output beams are a doughnut one

    此外,我們把中空光纖中lp _ ( 01 )模(標量模型)和he _ ( 11 )模(矢量模型)的分佈以及它們各自的輸出光束的近遠場分佈進行了比較,發現兩種模式的輸出光束在近分佈有很大的區別, lp _ ( 01 )模輸出光束在近是一個高斯分佈,而he _ ( 11 )模輸出光束在近是一個中空光束,在遠場兩種模式的輸出光束分佈是基本一致的,這正是由於在中空光纖中採用了弱波導近似以後所引起的誤差。
  18. A simple and effective method is given to successfully simulate circular and different serrate type aperture ' s far - field diffraction and compared with the diffraction of hard - edged circular apertures

    摘要採用一種簡單有效的方法,模擬了光束經圓形孔徑和不同齒形光闌的遠場衍射分佈,並與經圓孔硬邊光闌的衍射作了比較。
  19. The near and far electromagnetic field are synthesized by summation of the electromagnetic field of short current segments or hertz dipoles

    以很多小段赫芝偶極之完整電磁合成一任意線電流之近遠場電磁
  20. Working on laser diode fiber - coupling modules was summed up, they are, setting up the model of far - field distribution of laser array and the far - field characteristics of difference structures ; designing the temperature - controlled laser diode fiber modules, that has been used as a laser system with temperature - controlled and fiber - output ; realization with high - brightness laser diode fiber - coupling modules ; the fiber ' s application in the field of high power laser

    總結了自己在光纖耦合輸出激光二極體模塊方面所做的一些工作,建立了半導體激光器列陣遠場光束分佈模型,並結合具體參數分析了不同結構的激光器列陣的光束遠場分佈特性,可以知道我們設計和優化激光器列陣的結構。設計並製作了光纖耦合模塊的溫度控制系統,並製作成溫控光纖輸出激光器半導體系統投入使用。
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