Abstract
The velocity measurement was performed in the micro chemical reactor with AC electroosmotic pump using particle tracking velocimetry (PTV). Based on the reproducibility of laminar flows and the periodicity of AC electroosmotic pump, time series velocity measurement were iterated to increase spatial velocity information and to overlap the vector map at the same time of cycle the AC electroosmotic pump. This technique improves the spatial and temporal resolution at low number density of tracer particles. A visualization measurement by laser induced fluorescence was also performed using fluorescent dye. This study evaluated both the variation of flow structure and the mixing enhancement in the reactor.