Measurement of liquid surface tension and shape of a droplet on vertical plate by far field scattering technique
We demonstrate a laser far field scattering method to detect droplets efficiently. The scattering from droplet include transmission and reflection patterns, and the relation between the intensity distributions of scattering and the surface tension, refractive index of the liquid droplet were derived...
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Veröffentlicht in: | Optics communications 2021-03, Vol.482, p.126578, Article 126578 |
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Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | We demonstrate a laser far field scattering method to detect droplets efficiently. The scattering from droplet include transmission and reflection patterns, and the relation between the intensity distributions of scattering and the surface tension, refractive index of the liquid droplet were derived out theoretically. In our experiment, the stable transmission and reflection patterns from droplets were collected clearly, and surface tension, the refractive index of the droplet were measured simultaneously. A new optical method for detecting the droplet was developed, and the correlation of the scattering patterns to the droplet shape was also established experimentally. Our work has potential applications in the field of interfacial phenomena.
•The relationship between the scattering distribution of droplets on a vertical plate and the surface tension and refractive index of droplets is deduced theoretically.•A new optical method for detecting the droplet was developed by far field scattering technique. |
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ISSN: | 0030-4018 1873-0310 |
DOI: | 10.1016/j.optcom.2020.126578 |