TITLE

Photoacoustic measurement of liquid viscosity

AUTHOR(S)
Cunguang Lou; Da Xing
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/24/2010, Vol. 96 Issue 21, p211102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter, we report on the use of photoacoustic method to measure the viscosity of viscous liquids. The theoretical and experimental study was performed on the influence of viscosity effects on photoacoustic generation. We provide evidence that the frequency spectrum of photoacoustic signal is precisely related to the viscosity. Measurements are validated on different water–glycerol mixtures. Good agreement between theoretical and experimental results is obtained. This present method provides an insight into in situ viscosity measurements, which has potential for noninvasive detection of blood viscosity.
ACCESSION #
51059336

 

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