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相关概念视频

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...

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Integrated diamond quantum spectrometer for high-resolution picoliter nuclear magnetic resonance (NMR) under ambient magnetic noise.

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Asymmetric-beam steady-state thermoreflectance for three-dimensional anisotropic thermal conductivity measurements.

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The next-generation particle x-ray temporal diagnostic for simultaneous time-resolved measurements of nuclear-burn and x-ray emission histories in support of basic-science and inertial confinement fusion experiments at OMEGA.

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相关实验视频

Updated: Jun 18, 2026

High-speed Particle Image Velocimetry Near Surfaces
11:59

High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

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使用PIV设备提高单次射击灵敏度的双干扰度.

D Kaganovich1, A Beresnyak1

  • 1Plasma Physics Division, Naval Research Laboratory, Washington, District of Columbia 20375, USA.

The Review of scientific instruments
|May 2, 2025
PubMed
概括

一种新的双干扰测量方法提供了高的单次射击灵敏度,即使在杂的条件下. 为了解决测量中的系统相位错误,开发了一个校正.

科学领域:

  • 光学物理学 光学物理学
  • 计量学 计量学 计量学

背景情况:

  • 干涉测量对于精确的测量至关重要.
  • 现有的技术在杂的环境中难以提高灵敏度.

研究的目的:

  • 展示和测试一种新的双干扰测量技术.
  • 为了在粒子图像速度测量 (PIV) 硬件中实现高单次射击灵敏度.

主要方法:

  • 在粒子图像速度测量中常用的硬件.
  • 实施了双干扰测量方法.
  • 开发了一个相位校正程序.

主要成果:

  • 展示了前所未有的单次射击灵敏度.
  • 在杂的背景下取得可靠的测量.
  • 识别并纠正了一个系统的相位错误.

结论:

  • 新的双干涉测量技术是有效的.
  • 该方法对在具有挑战性的条件下需要高灵敏度的应用具有前景.
  • 提供的校正程序提高了测量精度.

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Last Updated: Jun 18, 2026

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