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相关概念视频

Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...

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相关实验视频

Updated: May 7, 2026

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用单个电光调制器进行空间分辨的双传感.

Camilo Escobar-Vera, Aldo Moreno-Oyervides, Miguel Soriano-Amat

    Optics express
    |November 22, 2024
    PubMed
    概括

    我们开发了一种简单的双成像系统,用于空间分辨感应. 这种技术使用红外摄像头和单个调制器来绘制高分辨率样本的光谱响应.

    科学领域:

    • 光学和光子学 在光学和光子学.
    • 频谱学是一种光谱学.
    • 传感技术 传感技术

    背景情况:

    • 传统的光谱成像技术可能是复杂和昂贵的.
    • 开发稳定高效的空间分辨率光谱分析方法对于各种科学应用至关重要.

    研究的目的:

    • 引入一种新的,简化的双照明方法,用于空间分辨率的光谱传感.
    • 展示一种能够具有高空间和光谱分辨率的多光谱成像仪.

    主要方法:

    • 使用连续波激光器和单个电光调制器生成两个相互连贯的光学频率,线距略有不同.
    • 采用红外摄像机从连续图像中捕获双光谱,使得每个空间点的光谱响应可以恢复.
    • 实现了高系统稳定性,允许集成时间超过10秒.

    主要成果:

    • 开发了一种简单的多光谱成像仪,可以在16000个空间位置分辨多达127个光谱通道.
    • 通过测量加热标准的折射率的空间变化来证明概念的证明.
    • 实现了接近1kHz的数字化采样率.

    结论:

    • 新的双方法提供了一个简单,稳定和高分辨率的方法,用于空间分辨率的光谱传感.

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  • 该系统对现场部署的应用有很大的潜力,例如绘制温度或应变分布的地图.
  • 讨论了进一步的发展,强调了当前传感方法的优点和局限性.