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Frequency-resolved photoacoustic viscosity measurement
Author(s): Yue Zhao; Liwei Liu; Junle Qu
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Paper Abstract

In this paper, we proposed a photoacoustic (PA) method for detecting liquid viscosity based on frequency-resolved measurement. A negative correlation was investigated theoretically between the liquid viscosity and the full width at half maximum (FWHM) of the PA frequency spectrum. To test the feasibility of this method, water mixed with different concentrations of ink and glycerol was measured. The results indicate that liquids with higher viscosity will lead to a higher FWHM reduction in the PA frequency spectrum and the frequency spectrum was independent from the absorption coefficient of the liquid, which demonstrate that this technique has future potential clinical applications for monitoring the viscosity changes in subcutaneous microvasculature.

Paper Details

Date Published: 15 November 2018
PDF: 4 pages
Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109646B (15 November 2018); doi: 10.1117/12.2506515
Show Author Affiliations
Yue Zhao, Shenzhen Univ. (China)
Liwei Liu, Shenzhen Univ. (China)
Junle Qu, Shenzhen Univ. (China)

Published in SPIE Proceedings Vol. 10964:
Tenth International Conference on Information Optics and Photonics
Yue Yang, Editor(s)

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