Quantitative measurement of depth-averaged concentration fields in microchannels by means of a fluorescence intensity method

被引：28

作者：

Matsumoto, R ^{[1
]}

Zadeh, HF ^{[1
]}

Ehrhard, P ^{[1
]}

机构：

[1] Kansai Univ, Dept Mech Syst Engn, Osaka, Japan

来源：

EXPERIMENTS IN FLUIDS | 2005年 / 39卷 / 04期

关键词：

D O I：

10.1007/s00348-005-0005-9

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

We have inferred and verified an optical measuring technique, based on fluorescence intensity, for the species concentration field in a liquid microchannel flow. In contrast to macroscopic flows, where a light sheet is usually applied, the complete illumination of the measuring volume in the microchannel provides a height-averaged concentration field. The technique was verified with aqueous solutions within a square glass microchannel of 110 mu m width. The verification experiments confirm both a good spatial resolution and a good accuracy of even the concentration gradients within a concentration boundary layer.

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页码：722 / 729

页数：8

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