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相关概念视频

IR Spectrometers01:25

IR Spectrometers

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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...
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相关实验视频

Updated: May 28, 2025

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
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设计和校准用于红外偏光度的光源.

Lu Ye1,2, Xiangchao Zhang1, Min Xu1

  • 1Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, School of Information Science and Technology, Fudan University, Shanghai 200438, China.

Sensors (Basel, Switzerland)
|February 13, 2025
PubMed
概括
此摘要是机器生成的。

一种新型的红外裂纹光源提高了曲面测量精度,达到1μm RMS. 这种具有成本效益的工具可以提高光学车间的表面质量评估.

关键词:
无球形的表面表面为球体.摄像机的校准 摄像机的校准研磨 研磨 研磨 研磨 在红外偏光测量仪的红外偏光测量仪这是一种光学测量.

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Direct Imaging of Laser-driven Ultrafast Molecular Rotation
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相关实验视频

Last Updated: May 28, 2025

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 计量学和测量科学 计量学和测量科学

背景情况:

  • 红外偏光测量对于测量精密工程曲面表面至关重要.
  • 红外偏光仪的性能在很大程度上取决于红外光源的特性和配置.

研究的目的:

  • 设计和验证一个稳定,均的红外裂纹光源,用于增强的偏光计.
  • 开发用于使用设计光源的红外摄像机的校准方法.

主要方法:

  • 使用聚胺加热膜的腔结构被用来创建红外裂光源.
  • 在扫描过程中,使用理论石和立方镜进行了对齐,以最大限度地减少扫描期间的位置偏差.
  • 该光源也被用作红外摄像头的校准板.

主要成果:

  • 设计的红外裂纹光源表现出良好的稳定性和均性,减少了背景噪声.
  • 综合系统的测量精度达到1微米的根平均平方 (RMS).
  • 该方法在研磨过程中的快速测量中被证明是有效的.

结论:

  • 开发的红外裂纹光源和校准方法为表面质量评估提供了可靠,具有成本效益和高效的解决方案.
  • 这项技术在光学车间具有重要的应用潜力,用于精确的表面计量学.