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Updated: Jul 3, 2026

Imaging and Quantification of the Area of Fast-Moving Microbubbles Using a High-Speed Camera and Image Analysis
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近场声学成像使用中的气泡

Dorian Bouchet1, Olivier Stephan1, Benjamin Dollet1

  • 1Univ. Grenoble Alpes, CNRS, LIPhy, 38000 Grenoble, France.

Nature communications
|November 28, 2024
PubMed
概括

研究人员开发了一种使用子泡进行高分辨率声学显微镜的新方法. 这种技术使复杂结构的近场成像具有前所未有的细节,推进声学成像能力.

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相关概念视频

Excess Pressure Inside a Drop and a Bubble01:13

Excess Pressure Inside a Drop and a Bubble

The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops.
Sound as Pressure Waves01:17

Sound as Pressure Waves

Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...