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相关概念视频

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

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A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
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相关实验视频

Updated: Jan 17, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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对于光纤干涉度传感器的高度强大的解调算法.

Jie Yao, Xiaopeng Liu, Xuqiang Wu

    Optics express
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    此摘要是机器生成的。

    用于光纤传感系统的新阶段解调算法增强了强度和抗干扰性. 这种光谱分解方法提高了线性和信号质量,即使在具有挑战性的环境中.

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    Last Updated: Jan 17, 2026

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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 信号处理 信号处理
    • 光纤传感器 光纤传感器

    背景情况:

    • 介面计光纤传感系统需要强大的相位调节.
    • 传统的圆拟合算法在杂或受干扰的环境中面临限制.

    研究的目的:

    • 为基于3x3合器的光纤传感开发一种新的相位调节算法.
    • 为了增强强性和阻扰性,在相位解调.

    主要方法:

    • 将光谱分解纳入3D圆体拟合算法.
    • 使用最小平方法来估计圆体参数.
    • 采用光谱分解来计算主轴和ATAN算法,使用相解封来进行调节.

    主要成果:

    • 实现了99.98%的线性,超过了传统方法.
    • 在显著干扰 (321rad) 条件下,总波扭曲 (THD) 保持在1%以下.
    • 信号噪声和扭曲比 (SINAD) 提高了大约13.8dB.

    结论:

    • 拟议的算法在光纤传感中提供了卓越的解调性能和稳定性.
    • 与3D圆体配件集成的光谱分解提供了更高的准确性和稳定性.
    • 在多样化和具有挑战性的实验条件下验证的有效性.