Research on Rotatonal Mixing Sysytem of Small Droplet in Hybrid Rotational Electric Field

利用水滴在交流电场作用下的共振振动，将两种浓度为几十微升的水滴混合在一起，研究了放置在超疏水材料上的粘性水滴的行为。通过观察一对平行电极上放置100微升的水滴在交流电压5 ~ 20 Hz范围内水滴形状的变化，研究了水滴在交流电场作用下的延伸比与频率的关系。含有荧光材料的50微升粘性水滴与待聚结的水滴结合，以确认液滴内部的液体流动。利用三维电场提高了粘性液滴的混合性能。

To mix two kind of water droplet with a few tens micro L by resonant vibration of a water droplet under AC electric field, behavior of a viscous water droplets placed on a super-hydrophobic material was investigated. Extension ratio of the water droplet under AC electric field for relation of frequency were investigated from observation of the variation of the droplet shape for ac voltage from 5 to 20 Hz applied to a pair of parallel electrodes where a water droplets of 100 micro L was placed. A 50-micro-L viscous water droplet containing fluorescent material and water droplet made to be coalesced to confirm liquid flow inside of the droplet. The mixing performance of viscous droplets was increased by using three dimensional electric field.