A new technique for measuring viscosity of liquid with pico-liter volume based on Doppler shift by photothermal effects

被引：0
|
作者：
Yarai, Atsushi [1 ]
机构：
[1] Osaka Sangyo Univ, Dept Elect Informat & Commun Engn, Daito, Osaka 5748530, Japan
来源：
2012 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC) | 2012年
关键词：
viscosity measurement; spherical lensed fiber; photothermal expansion; Doppler shift; SENSOR; LASER;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper proposes a new technique for quickly measuring the viscosity of liquid with pico-liter volume based on Doppler shift by elastic wave in liquid induced by periodical photothermal expansion. Our sensing head for the sample liquids is composed of two spherical lensed fibers so that the volume of the sample liquid is no more than the order of pico-liter. The time resolved frequency of the Doppler shift is measured, and the viscosity is estimated from the shape of the curve. The experimental result was demonstrated, and the estimation of the "relative viscosity" by using a seismic system is attempted.
引用
收藏
页码：1348 / 1351
页数：4
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