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axial intensity
相关语句
  轴向光强
     A method of analyzing the axial intensity in a confocal fiber system
     一种分析光纤共聚焦系统轴向光强的方法
短句来源
     The plates are used as the elements with long focal depth,whose two important parameters*#:the axial intensity distribution and the axial variation of the focused-central-spot size,are simulated and analyzed*#.
     对其作为长焦深元件的两个重要参量———轴向光强分布和沿轴向一定范围内聚焦中心光斑大小的变化进行了模拟分析 ,得出了沿轴向一定范围内聚焦中心光斑大小基本恒定的结论。
短句来源
     It is necessary to study characteristics of axial intensity distributions, such as focal depth and focal shift, which influence the maximum energy efficiency obtained and the assembling error at the receiving plane.
     衍射聚焦器件轴向光强分布的焦深和焦移特性 ,直接决定着系统接收面的装配误差和获得最佳的能量利用率。
短句来源
     Through the curve of half high width of normalized axial intensity via detector effective radius and incoherent incidence light effective radius,the optical sectioning property of confocal microscope was gotten.
     在共聚焦显微镜中,通过系统的归一化轴向光强半高宽与探测器有效半径和非相干光源有效半径的关系曲线,获得非相干光源照明下系统光学层析能力的变化规律.
短句来源
  轴上光强
     Based on the Rayleigh diffraction integral and without use of the usual approximation,Rλ(λ is wavelength),an exact analytical expression for the axial intensity of nonparaxial Gaussian beams diffracted by a small circular aperture is derived.
     基于瑞利衍射积分,不使用通常的近似Rλ(λ为波长),推导出非傍轴高斯光束通过小孔光阑衍射的轴上光强的精确解析表达式。
短句来源
     1. Based on the Rayleigh diffraction integral and without use of the usual approximation, R≥λ(λ-wavelength), an exact analytical expression for the axial intensity of nonparaxial Gaussian beams diffracted by a small circular aperture is derived.
     1.基于瑞利衍射积分,不使用通常的近似R>>λ(λ为波长),推导出非傍轴高斯光束通过小孔光阑衍射的轴上光强的精确解析表达式。 然后,对传统的光强定义和光强的精确表述进行了比较研究。
短句来源
     It is found that the axial intensity of focused sinhGaussian beams vanishes, so that LiWolf's approach to the focal shift fails.
     研究发现聚焦双曲正弦高斯光束的轴上光强为零,因此Li和Wolf二人研究焦移的方法不再适用。
短句来源
     Detailed numerical calculations and analysis for the axial intensity distribution,refative focal shift and three-dimensional intensity distribution of focused Laguerre-Gaussian beams in the apertured case have been performed by using Collins diffraction integral.
     运用Collins公式对受光阑限制的聚焦拉盖尔-高斯光束的轴上光强分布、相对焦移及三维光强分布进行了数值计算和分析讨论.
短句来源
     Based on the expression for the axial light intensity of cosine-Gaussian beam by a lens with spherical aberration,the influence of the coefficient of the spherical aberration and Fresnal number of Gaussian beams on the axial intensity distribution is discussed.
     本文基于余弦高斯光束通过球差透镜聚焦的轴上光强分布表达式,讨论了球差系数kS1及高斯光束菲涅耳数Nw对轴上光强的影响。
短句来源
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  “axial intensity”译为未确定词的双语例句
     It was showed that its axial intensity was 39. 6N and radial intensity was 38. IN.
     结果表明,其轴向抗压强度为39.6N,径向抗压强度为38.1N。
短句来源
     The Axial Intensity Distribution of Annular Aperture Diffraction
     圆环衍射中轴线上的光强分布
短句来源
     Based on the fact that circ function can be expanded by an approximate sum of complex Gaussian functions with finite numbers,the analytical formula for the axial intensity distribution of a partially coherent Gaussian Schell model (GSM) beam through a circular lens with finite aperture was derived. The calculation was made and its results were compared to those of the diffracted integral.
     以圆形函数可近似展开为有限数目的复高斯函数叠加为基础 ,推导出部分相干高斯 谢尔模型 (GSM )光束通过圆形光阑透镜的轴上聚焦光强分布的解析计算公式 ,并与衍射积分方法所得的结果进行比较分析。
短句来源
     Axial Intensity Distribution of a Bessel-Gauss Beam Focused by an Aperture Lens
     有限束宽聚焦贝塞尔-高斯光束轴上的光强分布
短句来源
     This paper proposes an improved method for measuring the axial intensity of magnetic induction in a solenoid. This improvement not only makes the sensitivity of ballistic galvanometer 8.5 times higher, but also extends the lower limit of measurement range of B from 10 Gs to 1 Gs. In general, it limits the working current to the range from 0.1 A to 0.3 A which is used to measure K and B.
     本文对螺线管轴向磁感应强度测定实验提出一种方法,通过改进后不仅使冲击电流计的灵敏度提高了8.5倍,B的测量下限由10高斯降低到1高斯,扩大了测量范围,而且使测定k和B时的工作电流都统一在0.1~0.3安培范围内。
短句来源
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  axial intensity
The normalized axial intensity minimum Imin / Imax decreases with an increase of α and β, and Imin / Imax remains unchanged as Nw varies.
      
Based on the generalized Huygens-Fresnel diffraction integral and the theory of partially coherent light, the axial intensity distribution and the focal shifts of focused partially coherent conical Bessel-Gauss beams are investigated.
      
Axial intensity distribution and focal shifts of focused partially coherent conical Bessel-Gauss beams
      
In a typical case of a 1010 W laser, the enhancement of axial intensity by a factor of 25 has been predicted in a length of 0.6 cm.
      
Numerical results concerning the far-field intensity distribution and the axial intensity distribution in the near-field region are presented in diagrams and discussed.
      
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This paper proposes an improved method for measuring the axial intensity of magnetic induction in a solenoid. This improvement not only makes the sensitivity of ballistic galvanometer 8.5 times higher, but also extends the lower limit of measurement range of B from 10 Gs to 1 Gs. In general, it limits the working current to the range from 0.1 A to 0.3 A which is used to measure K and B.

本文对螺线管轴向磁感应强度测定实验提出一种方法,通过改进后不仅使冲击电流计的灵敏度提高了8.5倍,B的测量下限由10高斯降低到1高斯,扩大了测量范围,而且使测定k和B时的工作电流都统一在0.1~0.3安培范围内。

The drag of fluid by dilute solution of linear macromolecules is lower than that of New Tonian fluid.This phenomenon was discovered by B.A. Toms early in 1948, and it is called drag reduction effect. It has wide- ranging benefits in the fields of national defence, industry, water con- servancy, water transport and fire fighting etc. This paper studies experimentally the turbulence structure of the flow of water and that of dilute solutions of linearmacromolecules in smooth channel by laser dopplemeter. According...

The drag of fluid by dilute solution of linear macromolecules is lower than that of New Tonian fluid.This phenomenon was discovered by B.A. Toms early in 1948, and it is called drag reduction effect. It has wide- ranging benefits in the fields of national defence, industry, water con- servancy, water transport and fire fighting etc. This paper studies experimentally the turbulence structure of the flow of water and that of dilute solutions of linearmacromolecules in smooth channel by laser dopplemeter. According to the results of experiments, influence of the linear macromolecules to the mean and pulsation structure of the flow is analysed, and on the basis of this, combined with abroad materials, drag reduction fundamentals of the linear macromolecules are preliminarily analysed.The results indicate that the following conclusions may be drawn: 1. The linear macromolecules of polypropylene have distinct drag re- duction effect, relative to New Tonian fluid, the mean velocity ((?)/u*) of the fluid of dilute solution of linear macromolecules increases distitic- tly, dray coefficient of it reduces and axial intensity (u′~2/u*)~(1/2) incr- eases distinctly. 2. By using laser dopplemeter to measure the turbulence parameter, the results are the same as the relevant abroad material. Theoretical for- mulas of turbulence parameter ofviscoelastic fluid put forward by Dou Guoren are identical with the results of the experiments. 3. According to New Tonian fluid, the correlation coefficient of u′, v′ is reduced by adding the linear macromolecules of polypropylene be- cause the drag coefficient of the viscoelastic fluid is reduced, that is, the decrement of turbulence drag τ=-ρ(?). The drag reduction in the vicinity of boundary is maximal, and in any position the turbulence drag is reduced too. 4. To a linear macromolecules, if the consistency of linear macromol- ecules is low, we can find the maximal drag reduction with the increase of consistency.And if the consistency outstrips this number, the drag re- duction decreases with the increase of consistency. So we should analyse the character of the linear macromolecules to obtain the optimum consist- ency and maximal benefit.

本文采用激光流速仪,对光滑明渠中清水水流、含高分子聚合物的流体(粘弹性流体)的紊流结构进行了系统的试验研究,根据试验结果,分析了高分子聚合物分子对流体时均结构、脉动结构及阻力系数的影响。在此基础上,结合国外试验资料,对聚合物分子的减阻机理进行了初步分析.最后,对随机理论提出的时均结构表达式及脉动结构表达式再次进行了验证.

Analytic expressions for axial intensity distributions of a Bessel-Gauss beam focused by an aperture lens have been derived by using Coffins diffraction integral, and discussed by numerical calculations. As a limting case, the axial intensity distributions of a Bessel beam focused by an aperturelens have also been studied both theoretically and experimentally.

运用Collins衍射积分推导了贝塞尔-高斯光束经圆光阑限孔透镜后的轴上光强表达式。通过数值计算讨论了轴上光强的分布规律。对贝塞尔光束经回光阑限孔透镜后的轴上光强分布进行了理论和实验研究。

 
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