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相关概念视频

UV–Vis Spectrometers01:14

UV–Vis Spectrometers

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The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
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Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
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基于波长敏感的Ge-on-Si光探测器的废物材料分类

Anju Manakkakudy Kumaran1, Andrea De Iacovo1, Andrea Ballabio2

  • 1Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy.

Sensors (Basel, Switzerland)
|November 9, 2024
PubMed
概括

这项研究引入了一种新的,负担得起的废物分类系统,使用可调节的光电探测器. 它准确地识别了七种材料,包括塑料和玻璃,有助于回收利用.

关键词:
双带光电探测器 双带光电探测器机器学习算法机器学习算法材料的分类材料的分类.这是一个光学传感器.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 光学工程是指光学工程.
  • 废物管理技术 废物管理技术

背景情况:

  • 有效的废物分类对于有效的回收和资源管理至关重要.
  • 目前的方法可能很昂贵,或者缺乏区分各种材料的能力.
  • 光谱分析为非破坏性材料的识别提供了一个有希望的途径.

研究的目的:

  • 开发和展示一种新的,低成本的材料分类系统.
  • 为了利用可调节电压的光探测器来提取光谱信息.
  • 通过使用光电流信号处理,实现各种废物材料的准确分类.

主要方法:

  • 使用一个单一的,可调节电压的上 (Ge-on-Si) 光探测器.
  • 在可见和短波红外 (SWIR) 光谱区域运行该系统.
  • 采用宽带照明器,并使用分类算法分析不同偏差电压的光电信号.

主要成果:

  • 成功证明了该系统的材料分类功能.
  • 在七种不同的材料类型 (塑料,,玻璃,纸张等) 之间实现了有效的区分. ) 的情况.
  • 展示了近乎实时的分类功能.

结论:

  • 开发的Ge-on-Si光探测器系统为废物识别提供了一个可行的,低成本的解决方案.
  • 可调节的光谱传感与信号处理相结合,可实现可靠的分类.
  • 这项技术具有显著的潜力,可以提高回收和废物管理效率.