beam width
英 [biːm wɪdθ]
美 [biːm wɪdθ]
光束宽度；（波）束宽（度）
双语例句
- It is shown that the positions of phase saddles and vortices depend on the off-axis parameter, beam width, phase and relative amplitude of beams.
研究表明干涉场中的相位鞍点以及涡旋点的位置与光束的离轴参数、束腰宽度、相位以及相对振幅有关。 - The influence of atmospheric turbulence on the relative beam width spreading is larger for PCFT beam array with larger beam order and smaller coherence length.
光束阶数越大、相干长度越小，部分相干平顶光束序列的相对束腰宽度扩散较快； - Correction for the Directivity of Beam Width in Bathymetry
海洋测深波束角效应改正的方向问题研究 - Correction for the Directivity of Beam Width in Bathymetry The biggest problem is calculating the seabed slope angle of the unknown seabed.
而对未知海底的倾斜角求解问题是解决波束角效应的难点之一。 - The closed-form expression for the mean squared beam width of annular beams propagating through atmospheric turbulence is derived by using the integral transform technique.
采用积分变换技巧，推导出了环状光束通过湍流大气传输二阶矩束宽的解析表达式，并研究了湍流对环状光束扩展的影响。 - In case of electronic scanning the beam width is broader by a factor of two.
电子扫描时，波束宽度展宽一倍。 - Research on Measuring Beam Width of the Linear Array Diode Laser in Laser Fuze System by Using CCD
采用CCD成像装置测量激光引信发射光光束束宽的方法研究 - The formulas of mode conversion are derived and effects of optical beam power, initial beam width radius and inverse of the radius of curvature of the wave front on the mode conversion are analysed.
导出模式变换公式，分析了光束功率、光束初始的束宽半径和波前曲率半径的倒数对模式变换的影响。 - In this paper, the weight function of complex ray simulation is derived, the influences of complex source point spacing and beam width parameter on simulation accuracy are analyzed, and the simulation errors on and beyond the simulation aperture plane are dis-cussed.
导出了复射线场拟合的权函数，分析了复源点间距和波束宽度参量等对拟合精度的影响，讨论了口径平面上及口径平面外的拟合误差。 - Equivalent Beam Width Affected by Slab Column-cap in Slab-column Structure
板式柱帽对板柱结构等代框架宽度取值的影响 - Because of the accuracy requirements of tracking radar, the beam width is very narrow.
跟踪测量雷达因其精度要求，波束宽度很窄。 - Acoustic waves generated in a hollow cylinder by a laser line source with a beam width and a time duration
有束宽和时宽的激光线源在圆管中激发的声波 - The coupled differential equations of the dimensionless beam width parameters of two optical beams are solved.
求解了两光束无量纲束宽参量的耦合微分方程。 - The definition of beam width is significant for the quality of laser beam.
在激光光束质量问题中，光束束宽的定义至关重要。 - Taking the second-order-moment and power of the bucket as the beam width definition, changes of the beam parameters such as the beam width and far-field divergence angle of Gaussian beams after passing through an astigmatic lens are studied both analytically and numerically.
以二阶矩和环围功率作为束宽定义，对高斯光束通过像散透镜后光束参数，包括束宽和远场发散角作了解析和数值研究。 - Meanwhile, a detailed comparison between the self-convergent beam width method and the asymptotic approach is made and the equivalence between the two methods is discussed. In addition, a concise physical meaning of the self-convergent beam width method is given.
还对自收敛束宽法和渐近近似法作了详细比较，对这两种方法的等价性作了讨论，并且对自收敛束宽法赋予了简明的物理含义。 - The 180 ° beam width was achieved by combination three direction symmetry dipoles.
为满足此赋形波束，采用三个方向对称振子和反射器组合，实现180°波束覆盖； - In this paper we analyze the frequency correction caused by a finite beam width in an optical gyro.
本文分析了光陀螺中由于有限光束宽度对拍频频率的修正因子。 - The beam width W ( z) of a ouput laser beam from a variable reflectivity mirror resonator has been derived and analysed.
推导了变反射率镜激光谐振腔输出光束的传输特性，求得了其光斑大小W（z），并对结果进行了分析。 - Beam width and variable periodic node point of tapered GRIN lens
锥形GRIN透镜的光束宽度和变周期节点 - We have done some qualitative analysis on. THz transverse modes distribution in focus point, forward and backward of focus point using THz imaging technology. Then, applying "Slit method", we measured the beam width of THz wave.
通过THz成像技术对THz波在焦点、焦点两侧的横模分布情况进行定性的分析，然后利用狭缝法测量了THz光束的束宽。 - The beam width defined by the second order moment of the light intensity follows a general hyperbolic propagation law.
发现二阶矩定义下的衍射光束束宽满足一般的双曲线传输规律。 - The beam width is defined when the laser energy falls to 1/ e2.The width and divergence angle are worked out.
采用光能量降为最大强度的1/e2来定义光束束宽，通过等强线求出了宽度和远场发散角。 - The closed-form expressions for the mean-squared beam width and the angular spread of ChG array beams propagating through atmospheric turbulence are derived by has the same directionality as one single Gaussian beam is given.
利用积分变换技巧推导出了ChG列阵光束通过大气湍流传输的二阶矩束宽和角扩展的解析公式，给出了ChG列阵光束与一束高斯光束具有相同角扩展的条件。 - Through the pmma plate beam load test, the normal stress of each section is measured, the conclusion that the influence of the bending stress due to curvature variation along the beam width is correct has been verified.
通过有机玻璃的曲线板梁的荷载试验，测量了各个截面内外侧的正应力，验证了曲率沿梁宽变化对弯曲应力的影响是正确的。 - By numerical calculation, the beam parameters, such as the beam width and far-field divergence angle of sin-Gaussian beams passing through an astigmatic lens are studied.
通过数值计算对正弦-高斯光束通过像散透镜后的光束参数，例如束宽和远场发散角等参数作了研究。 - The analytic expressions are obtained and then used to analyze the effect of power law, refractive-index structure parameter, propagation distance, phase radius of curvature, beam width and wavelength on scintillation index of Gaussian beam under the strong atmospheric turbulence.
系统分析了功率谱幂指数、折射率结构常数、传输距离、相位曲率半径、光束宽度和波长对强大气湍流中高斯光束闪烁系数的影响规律。 - Marine CW radar transceiver antenna should be compact and have narrow beam width, light weight and high isolation.
船用连续波雷达的收发天线不但波束宽度窄，而且结构紧凑、重量轻、隔离度高。 - In general, the beam width decreases with frequencies.
总体来说，波束的宽度随着频率的升高而降低。