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- Optimum ratio of beam divergence angle to pointing error for satellite-ground laser link 星地激光链路中光束发散角与跟瞄误差的最佳比值
- Accuracy affected by the receiveing beam divergence angle in a Doppler wind lidar 接收光路光束发散角对多普勒测风激光雷达测量精度的影响
- Analytical method for beam divergence angle based on acquisition and tracking strategy 一种基于捕获跟踪策略的光束发散角分析方法
- The measurement and result analyse of beam divergence angle of telescopic unstable resonator 望远镜非稳腔光束发散角的测量与结果分析
- beam divergence angle 束发散角,束立散角,光束发散角
- According to acquisition and tracking strategy and laser detection theory, an expression of the best angle of beam divergence under direct detection is provided. 根据捕获跟踪策略和激光检测理论,给出了直接探测情况下最佳光束发散角的表示式。
- BY using the Theory of Gauss Beam, this paper discusses on the problem of the divergence angle of the compressed semi-conductor laser, and makes the numerical analysis. 利用高斯光束理论对压缩半导体激光器发散角的问题进行了讨论,并且给出了数值分析。
- The Cassegrainian unstable resonator has been demonstrated to be one of efficient means to decrease the OPO beam divergence. 证明了望远镜型共焦非稳谐振腔是压缩OPO光束发散角的有效方法。
- Beam Divergence As through the air telecom signal go further, they diverge. Beam divergence measures that divergence. 波束发散度当电信信号穿过空气向前传播时,信号将发散。波束发散度用于衡量这种发散。
- The relative errors of the beam width and far-field divergence angle introduced by the spherical aberration increase with increasing spherical aberration coefficient and decreasing beam order. 束宽和远场发散角的相对误差随球差系数绝对值的增加和光束阶数的减小而增加;
- By giving the optimum reflectance finesse, the maximum beam divergence and minimum aperture of the Fabry-Perot interferometer can be obtained. 由最优反射精细度可得到入射到标准具光束的最大发散角和标准具的最小通光口径。
- The output mode field diameter(MFD)and divergence angle are predicted by empirical equations, simulated by finite-difference beam propagation method(FD-BPM)numeric tool, and experimentally observed. 利用射线理论和经验公式给出了TLF基模光斑和发散角;
- The diameter of facula can be calculated by image process on computer, then we can get the value of divergence angle through formula. 在计算机中用图像处理方法求出光斑的大小,再计算发敞角。
- It is used in the measurement of ranging accuracy,maxmun and minimum ranges,pulse energy,pulse width,repetitive frequency features,beam divergence and optical axis stability of LRF. 主要检测测距机的距离准确性、最大及最小测程、脉冲能量、脉宽、重频特性、束散角及光轴稳定性等。
- The results show that the effects on the output laser wavefront of the FADW are mainly the beam deflexion and the beam divergence, the other high-level wavefront errors are very low. 结果表明,自由旋涡气动窗口对输出激光波前的影响主要是光束偏转和离焦,特别是气动窗口工作在设计状态时,其余低阶及高阶像差都比较小,能够满足实际需要。
- Isolators with different ratio of length to height (L/H) and divergence angle were investigated and the influence of back pressure on location of the shock train was analyzed. 在来流马赫数2.;3条件下,通过改变不同的反压来研究反压对不同长高比等截面隔离段和带扩张角隔离段激波串起始位置的影响。
- The effects of swirl number of primary swirler and radial swirler,area ratio and sleeve divergence angle on the cold flow field of double swirl air intake were investigated. 试验研究了主、径向涡流器旋流数、面积比、套筒扩张角等参数对双旋流进气装置冷态流场的影响。
- It is well known that the paraxial approximation is no longer valid for the beams with large divergence angle and/or small spot size comparable with the wavelength. 当光束具有较大的发散角或光束束腰可与波长相比拟时,傍轴近似不再成立。
- divergence angle of gauss laser beam 发散角
- The far-field intensities and divergence angles of combined beam of two copper vapor lasers with UR90 resonators coupled at small magnification (M=1.21) were measured and analyzed experimentally. 并利用铜蒸气激光器实现了两台低放大倍率(M=1.;21)UR90腔的相干并束输出,对输出光束的远场方向性进行了测量分析。