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相关概念视频

Wood Surfacing01:14

Wood Surfacing

317
Wood surfacing is a critical finishing process designed to smoothen the wood surface, enhance its dimensional accuracy, and make handling safer. This process compensates for potential shrinkage during the seasoning phase by marginally increasing the wood dimensions before surfacing. It also helps correct some distortions that may occur as the wood dries.
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
317

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Multiscale Structures Aggregated by Imprinted Nanofibers for Functional Surfaces
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基于代波形变换的表面分解算法用于计算机控制的光学表面化中的多工具制造.

Jianjie Zhou, Bo Li, Xinnan Li

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    |December 19, 2025
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    概括
    此摘要是机器生成的。

    一个新的基于波形变换的代表面分解算法 (IWTSD) 提高了光镜制造效率. 这种方法可以降低大孔镜的计算成本和抛光时间.

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    科学领域:

    • 光学工程是指光学工程.
    • 计算计量学计算计量学
    • 天文学仪器仪器仪表

    背景情况:

    • 天文学领域对高精度光学镜的需求日益增加,需要改进制造技术.
    • 目前的多工具抛光方法在计算和制造效率方面存在局限性.

    研究的目的:

    • 提出一个基于波形变换的代表面分解算法 (IWTSD) 和一个多工具制造策略.
    • 为了提高大光圈光学镜的计算和制造效率.

    主要方法:

    • 基于代波纹转换的表面分解算法 (IWTSD) 使用2D双树复杂波纹转换 (2D-DTCWT) 进行代精细化.
    • 分解将目标表面分成以尺度分离的非负元件表面.
    • 一个具有优化因子的表面延伸操作适应IWTSD用于非矩形孔径.

    主要成果:

    • 模拟显示,基于IWTSD的制造方法与其他方法相比,在2/3的停留时间内实现了可比的表面误差收.
    • 剩余的RMS大约是单刀制造实现的三分之一.
    • 1150毫米镜子的实验抛光使整体RMS从0.655λ减少到0.21λ.

    结论:

    • 拟议的IWTSD方法显著提高了大光圈光学镜的制造效率.
    • 该算法提供了降低的计算成本和抛光停留时间.
    • 在实验结果中,在每个尺度上观察到大量的残留物减少.