21420 The concept of fabrication of Micro-channel and Measurement of flow

概要

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Fluid flow in micro channels has emerged as an important area of research. This has been motivated by their various applications such as medical and biomedical use, computer chips, and chemical separations. To fabricate micro channel devices, it have need of inside of micro channel's reaction and understanding of dispersion from the view pint of multiphase flow dynamics. Usually, electrical impedance tomography (EIT) is visualized, into a cross-sectional image representing the distribution of density. EIT is recently developed imaging technique, with which images of the conductivity or permittivity of the subject can be rapidly collected with channels of external electrodes. Therefore, we considered application of EIT to the micro channels. In this research, as a first step to develop EIT to for micro channel nano particles concentration in micro channel with 60 electrodes and measured using cross sectional impedance measurement technique. Using the EIT system in the micro channel, the particle distribution image can be obtained in magnetic fluid. Based on the reconstructed image, it is easy to estimate the particle diffusion behaviors in fluid flow.
一般社団法人日本機械学会の論文
2008-03-13