自聚焦 的英文怎麼說

中文拼音 [zìjùjiāo]
自聚焦 英文
autofocus 〈x-ray〉tube
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 聚 : 動詞（聚集; 聚積） assemble; gather; get together
  • 焦 : Ⅰ形容詞1 （物體受熱失去水分 呈現黃黑色並發硬、發脆） burnt; scorched; charred 2 （著急） worried;...
  • 聚焦 : [物理學] （使光或電子束等聚集於一點） focus; focusing; concentrate
  1. Simulation and experiment on basic principle, imaging algorithms, auto - focusing techniques and bathymetry are given in chapter five

    理、成像演算法、自聚焦運動補償技術與合成孔徑測深的模擬和實驗結果。
  2. The analysis of grin in optical fiber collimator

    自聚焦透鏡在光纖準直器中的應用分析
  3. By a method for comparing, the conversion efficiency formula of the gaussian wave for second - harmonic generation ( cefgshg ) in general circumstances, which toke accounts of walk - off effect and self - focus effect together, was attained

    通過類比的方法給出了一般情況下，同時考慮走離效應和自聚焦效應時的高斯光束倍頻轉換效率公式。
  4. Finally, this chapter emphasizes the importance of auxiliary processing in sar imaging, indicates that autofocusing is essentially a problem of blind deconvolution, and that speckle reduction is a problem of imagery restoration. no additional assumption and limitation, the inverse problem on autofocusing or speckle reduction can not be solution

    同時，介紹了sar圖像自聚焦和相干斑抑制處理及其發展現狀，指出自聚焦過程實際上是一個盲解卷積問題，而相干斑抑制是一個圖像復原問題，對這類逆問題的求解需要附加假設或限定。
  5. Therefore in icf laser driver design and construction, it is very important to study the physical principle of the self - focusing effect

    因而理解並掌握自聚焦形成的物理規律，對于icf驅動器的設計與建造具有非常積極的意義。
  6. It is well known that nonlinear self - focusing effect is one of the important factors to limit icf laser energy and worsen beam quality

    實踐表明，非線性自聚焦效應是限制icf驅動器激光輸出能量及破壞光束質量的主要因素之一。
  7. In this high power laser system, nonlinear self - focusing effect especially the small - scale self - focusing is the main limiting factor

    在這種高功率激光系統中，非線性自聚焦效應是其主要的限制因素，其中尤其以小尺度自聚焦效應最為嚴重。
  8. Chapter 2 : characteristics of propagation of ultra - intense laser beam in a partially stripped preformed plasma channel is discussed, in which the relativistic self - focusing effects, together with the perturbed plasma density, is discussed

    第二章：本章闡述了超強激光光束在拋物型部分電離的預等離子體（聚焦和散焦）隧道中的傳輸特性。研究了相對論自聚焦效應和等離子體波引起的密度擾動對傳輸的影響。
  9. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  10. From maxwell equations the refractive index equation and hamilton - jacobi equation, which describe the evolution of the electric field, are derived including the effects of the diffraction, the third - order intensity - dependent nonlinearity, plasma defocusing, the focusing and defocusing of the plasma channel, and the relativistic self - focusing

    從maxwell方程出發我們得到了兩個包含衍射、三階強度非線性、等離子體散焦、等離子體隧道聚焦和散焦以及相對論自聚焦等效應在內的激光場演化方程，即折射率方程和哈密頓-雅可比方程。
  11. With the focal property and the aberration correcting ability, the varied line - space ( vls ) grating has been successfully used in the areas of astronomical physics, synchrotron radiation, fiber communications and so on. therefore, the ruling of the vls grating is one of the greatest significant tasks of the grating fabrication

    變柵距光柵具有像差校正、自聚焦等優點，在天文物理學、同步輻射、光纖通信等領域有著重要的應用，因此，變柵距光柵的刻劃技術一直是國際光柵製作領域的重大課題之一。
  12. To deal with the case of 2 dimension spatial self - focusing, it predicts the catastrophic collapse of a self - focusing beam in a kerr medium. this un - physical collapse is due to the invalidity of the paraxial wave equation in the neighborhood of a self - focus

    在該理論應用於空間二維的自聚焦時，出現了光束將無限聚焦的結果，這在物理上是不可想像的，原因是在自聚焦點附近傍軸方程已經失效了。
  13. The diffraction phenomena and analysis of self - focus lens

    自聚焦透鏡衍射現象及分析
  14. Imaging principle of a selffocusing lens

    一種自聚焦透鏡的成像解
  15. A simple method to measure the refractive - index distribution of selfoc lens

    一種測算自聚焦透鏡折射率分佈的簡單方法
  16. The lensless fourier hologram of object by using selfoc lens is obtained, and the clear image is numerical reconstructed

    通過自聚焦透鏡對物體成像，記錄並再現了物體的全息圖，得到了較滿意的再現像，為進一步利用光纖傳像奠定了基礎。
  17. A type of small - sized interferometer is reported, which makes use of the coupling of optical fiber and gradient index lens ( grin ) to form parallel light beams

    摘要介紹一種超小型光纖導光干涉儀，它利用光纖和自聚焦透鏡的耦合來形成平行光路，利用半反和全反光學膜片分光。
  18. Secondly, the third order nonlinear optical properties of these compounds are studied under the excitation of ps pulsed laser with the wavelength of 1064nm using z - scan technique, nonlinear refractive indices and nonlinear absorption coefficients are calculated according to the z - scan experiment curves of the compounds. all the three compounds have self defocusing characters and two photon absorptions. lastly, nonlinear refraction and absorption properties of these compounds are studied by z - scan technique under the excitation of ps pulsed laser with the wavelength of 532nm the self defocusing and reverse saturation absorption are found in these compounds

    根據實驗曲線計算了它們在1064nm下的三階非線性折射率和非線性吸收系數，三種化合物都具有自聚焦特性，並且在該波長下，三種化合物均具有雙光子吸收，最後，以皮秒脈沖的532nm為激發波長，採用z掃描方法，研究了三種金屬有機化合物的非線性折射和非線性吸收性質，在該波長下三種化合物仍然表現為自聚焦特性，且其吸收為反飽和吸收。
  19. Attitude errors are given first, and then theoretical analysis, simulation result show 3 kinds of attitude errors ’ affection both on the doppler and the image. 5. motion compensations based on gps / ins / imu control system and pga self - focus arithmetic are analyzed

    5 .研究了以gps / ins / imu為基礎的平臺控制系統和以pga演算法為基礎的自聚焦兩種主要的運動補償方案，並根據載機運動狀態和多普勒頻率的關系，推導了一種基於瞬時運動狀態的運動方法，最後結合rd演算法加以補償。
  20. The conditions for the long distance propagation are discussed in detail. the results are useful in determining the appropriate size of the channel to be preformed and can guide the future research in ultrashort intense laser propagation

    首次利用自恰電子空腔效應分析了超短超強激光在低密度等離子體中的長距離傳輸和自聚焦效應，詳細分析了長距離傳輸的條件。
分享友人
分享到 Line

分享到臉書