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相关概念视频

Deflection of a Beam01:19

Deflection of a Beam

235
Accurately determining beam deflection and slope under various loading conditions in structural engineering is crucial for ensuring safety and structural integrity. Singularity functions offer a streamlined approach to analyzing beams, especially when multiple loading functions complicate the bending moment equation.
Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...
235

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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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高均性贝塞尔梁与可控制角度的方向盘.

Zhongsheng Zhai, Jinxia Huang, Xin Yu

    Optics express
    |November 22, 2024
    PubMed
    概括

    本研究提出了一种新方法,用于产生具有控制角度和均强度的贝塞尔束. 该技术结合了弗雷内尔区域板和优化的轴子,用于精确的光束操纵.

    科学领域:

    • 光学和光子学 在光学和光子学.
    • 波束产生和操纵

    背景情况:

    • 贝塞尔梁对于要求均强度和可控制角度的应用至关重要.
    • 现有的产生贝塞尔束的方法在均性和角度控制方面存在局限性.

    研究的目的:

    • 引入一种新的方法来产生高均性,高信号噪声比和可控制角度的贝塞尔束.
    • 用组合光学元件系统来证明精确控制贝塞尔束角度.

    主要方法:

    • 使用高斯光束与具有优化配置的apodizing阶段轴子.
    • 一个弗雷内尔区域板 (FZP) 与优化的轴形相结合.
    • 使用遗传算法 (GA) 和不受约束的非线性优化算法 (UNMA) 进行了优化.

    主要成果:

    • 组合系统实现了统一的轴向强度分布.
    • 贝塞尔束角度控制通过调整FZP中心来实现,随意的角度控制在4.0742°内.
    • 显示了高均性 (94.66%) 和分辨率 (0.0008°).
    • 该方法已成功扩展到生成和控制多个贝塞尔束.

    结论:

    • 这种新的方法有效地产生了可控制角度的贝塞尔束,具有高均性和信号噪声比.

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  • 这种方法可以精确控制光束特性,并可扩展到复杂的光束装置.
  • 该技术对于需要量身定制的光束特性的先进光学应用具有重大潜力.