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相关概念视频

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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相关实验视频

Updated: Jan 15, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

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混合机制分布式传感使用前向传输和光学频域反射计.

Shangwei Dai1,2, Huajian Zhong1,2, Xing Rao1,2

  • 1State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Sensors (Basel, Switzerland)
|October 16, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的混合光纤传感系统,该系统结合了前向传输分布式振动传感 (FTDVS) 和光频域反射计 (OFDR). 新方法提高了远距离,多点振动检测和低频传感能力.

关键词:
在OFDR中,OFDR是OFDR.光纤传感传感器是指光纤传感器.转发转发的前期传输混合系统混合系统混合系统.低频振动是一种低频振动.

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相关实验视频

Last Updated: Jan 15, 2026

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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

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科学领域:

  • 光子学 是一个光子学.
  • 传感技术 传感技术
  • 光学工程是指光学工程.

背景情况:

  • 光纤传感提供高灵敏度和宽频响应在长距离.
  • 现有的前向传输分布式振动传感器 (FTDVS) 在多点振动定位和低频检测方面遇到了困难.

研究的目的:

  • 开发和验证混合分布式传感系统,将FTDVS和光频域反射计 (OFDR) 合并在一起.
  • 为了克服振动定位和低频探测在远程光纤传感方面的局限性.

主要方法:

  • 集成FTDVS和OFDR系统共享单个探针光源与稳定的线性光学频率扫描.
  • 实施一种新的近邻信号替换 (NSR) 方法,用于相变调不连续性.
  • 对混合系统性能进行实验验证.

主要成果:

  • 混合系统成功地将0到900赫兹的振动信号定位在21公里的传感距离上.
  • FTDVS模块保持了高频振动的功能,最高可达71公里.
  • 证明了动态和准静态事件的同时测量.

结论:

  • 混合FTDVS-OFDR架构代表了分布式光纤传感的重大进步.
  • 这种新的方法可以同时实现远距离传感和宽频响应.
  • 该系统非常适合用于对动态和准静态事件的远距离基础设施监控.