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相关概念视频

IR Spectrometers01:25

IR Spectrometers

996
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
996

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基于倾斜相位转移代方法的光谱分辨干扰计.

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    这项研究引入了一种新的倾斜相位转移代方法,用于光谱干涉测量. 它准确地从光谱干涉图中提取相位信息,即使是随机相位移和高噪声.

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    科学领域:

    • 光学计量学 在光学计量学
    • 干涉测量是干涉测量的方法.
    • 信号处理 信号处理

    背景情况:

    • 从光谱干扰图中提取相位面临着由于相位移动不均的挑战.
    • 现有的方法在随机相位变化和高噪音环境中扎.

    研究的目的:

    • 开发一种新的方法,用于在光谱解析干涉测量 (SRI) 中精确的相提取.
    • 为了克服光谱干涉测量的传统相位移技术的局限性.

    主要方法:

    • 提出了一种倾斜相位转移的代方法,集成光谱干扰图重建.
    • 该方法重建光谱干涉图,以在相位变化中创建线性倾斜.
    • 阶段提取是使用至少三个随机相位移的进行的.

    主要成果:

    • 这种新的方法实现了高质量的相提取,克服了随机相位移的局限性.
    • 与以前的方法相比,在配置测量方面表现出更高的准确性.
    • 在高噪音条件下和物体高度变化的情况下的有效性能.

    结论:

    • 拟议的倾斜相位转移代方法为SRI中相位提取提供了一个强大的解决方案.
    • 这种方法在具有挑战性的测量场景中提高了准确性和可靠性.