focal spot
英 [ˈfəʊkl spɒt]
美 [ˈfoʊkl spɑːt]
焦点（斑）
双语例句
- Effect of deviation distance to focal spot on spectra of the laser-induced Cu plasma in air
空气中激光聚焦位置对Cu等离子体光谱的影响 - There are no evident energy gain when the focal spot size is too big or small.
电子的能量增益有一个最佳焦斑大小。 - Experimental Study of Two-dimensional Orthogonal Segmented Wedge Array Optical System Applied to Uniform Illumination of Large Focal Spot
二维正交光楔列阵大焦斑均匀照明光学系统的实验研究 - But the size perpendicular to polarization direction of focal spot with linear polarized beam is always smaller than that of radially polarized beam.
而线偏振光聚焦光斑垂直于偏振方向的直径始终小于径向偏振光聚焦光斑直径。 - Under the different laser parameters, the electron energy gain depends on the laser intensity, focal spot size and pulse width.
不同激光参鼍条件下，得到了电子的能量增益与激光强度、焦斑大小和脉冲宽度关系。 - A new method-axial scanning method ( ASM)-is devised to find the position of the focal spot of polycap-illary X-ray lens.
为了高效准确地确定整体X光透镜焦斑位置，设计了一种新方法：轴向扫描法。 - The Gauss width of focal spot which is too small results in the sampling error while using CCD as the centroid detecting device of Shack-Hartmann Wavefront Sensor ( SHWS) in Adaptive Optics ( AO) system.
自适应光学系统中采用CCD作为哈特曼波前传感器的光斑质心位置探测器时，由于光斑的高斯宽度较小会带来大采样误差。 - Study on Curing Control and Focal Spot Measurement of Aspherical Liquid Microlens
非球面液滴微透镜固化控制和焦斑测量研究 - The phase difference caused by piston error translated with the tiled-grating compressor, the focal spot was affected by both non-integral number of grating space and out-of-plane piston error.
位移偏差引入的相位随着拼接光栅压缩器传递，其对远场焦斑的影响，取决于每片子光栅的非整数倍光栅常数的横向位移偏差和纵向位移偏差的综合作用。 - Effect of smoothing by spectral dispersion on the spatial spectrum of focal spot
光谱色散匀滑对焦斑光强频谱的影响 - The X-Ray tube focal spot is obtained by convergence of static field on the electron beams.
X射线管的焦点是通过静电场对电子束的会聚作用而形成的。 - A nine element small focal spot crossed SWA system was successfully fabricated with optimum design of the system parameter and strict control precision of fabrication.
通过优化系统参数设计、严格控制光楔列阵的加工误差和拼接精度，成功地研制了九单元小焦斑SWA系统。 - Effect of focal spot and detector on CT image quality
射线源焦点及探测器对CT图象质量的影响 - The sizes of focal spot and detector aperture are the factors affecting CT image quality.
射线源焦点及探测器孔径大小是导致CT图象降质的主要因素。 - By infrared thermal imaging techniques in this thesis, the focal spot size and focal length of this dielectric lens antenna are measured.
本论文应用红外热成像技术，对毫米波介质透镜天线的焦斑焦距进行了测量。 - The measurement method and error analysis method of GRIN lens focal spot diameter in IR wavelength are described.
主要介绍GRIN透镜在红外波段聚焦光斑直径的测量方法及误差分析。 - At the same time, the size of the focal spot is related with the tube power.
同时，焦点的尺寸大小与X射线管的功率有着密切的关系。 - The blooming value of the X-ray tube is an important parameter of the focal spot.
X线管焦点散焦值（晕值）是焦点的主要特性之一。 - In the traditional optics, there is a contradiction between focal depth and focal spot.
在经典光学中，焦深和焦斑总是一对无法解决的矛盾。 - The experimental results of focal spot measured with schlieren method were reported in this paper.
报导了用纹影法测量远场焦斑的实验结果。 - The focal spot sizes can immediately influence picture definition when X-ray machine carry through clairvoyance and photography.
焦点的尺寸大小及聚焦质量直接影响X射线机透视、摄影图像的清晰度； - A study on the influence of optical focal length of lens on laser focal spot
透镜的焦距对激光聚焦焦斑影响的研究 - On the basis of the analysis of the errors due to the displacement of the focal spot, the requirement for aligment are presented and the error is eliminated experimentally.
对焦点偏移误差进行了分析、确定了准直的要求并以实验方法消除了此误差。 - The cutting accuracy of the process is mainly decided by the focal depth of the laser beam and the power density at the focal spot. A method to examine the cutting accuracy of the process is proposed.
并分析计算了决定激光切削精度的聚焦激光束的焦深和焦斑功率密度，提出了试验测定激光切削精度的方法。 - The transmission efficiency and the focal spot size of X-ray lens are measured in this way. The results are compared with the commonly-used method. Therefore the feasibility and superiority of this method is testified through experiment.
利用该方法测量了X光透镜的传输效率和焦斑大小，并将结果与以往加吸收片法作了比较，从实验上证明了这种方法的可行性与优越性。 - The focal spot, size depend on the pinhole diaphragm diameter of spatial filter.
光斑尺寸和空间滤波系统的针孔光阑直径有关。 - The time behavior diagnosis of laser beam focal spot is an important part of laser inertial confinement fusion.
激光束焦斑的时间特性诊断是激光惯性约束聚变的重要组成部分。 - In the method of lateral illumination, the influences of incident angle and the focal spot size on enhancement factor have been researched with finite-difference time domain ( FDTD) method. Meanwhile, the urgent issues in the experiment have been discussed.
在侧面照射的方案中，通过时域有限差分法（FDTD）分析了聚焦光斑尺寸以及入射角度对针尖增强效果的影响，讨论了实验中亟待解决的问题。 - The results showed that all the configurations such as response time, the focal spot size, and the depth of focus, etc, have reached the expectation. Finally, a summary of the thesis and a suggestion for future work were given.
结果表明，液晶器件的电控响应时间，焦斑尺寸，焦深等性能指标都达到了预期目标。最后，对全文工作进行了总结，对后续工作提出了展望和建议。 - We find that long focal depth and smaller focal spot can be obtained by changing the phase of beams.
我们发现，通过调控入射光的位相可以让焦点处的光强为零或者得到更长的焦深、更小的焦斑。