面向生物流体泵送的AGET微泵性能优化评价  

Optimization Evaluation of an AC Electrothermal Micropump for Biofluid Delivery

作　　者：张明航[1] 李姗姗[1,2,3] 孟冀豫 戴士杰[1,2,3] ZHANG Ming-hangi;LI Shan-shan;MENG Ji-yu;DAI Shi-jie(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300130,China;Hebei Key Laboratory of Robotic Sensing and Human-robot Interactions,Tianjin 300410,China;Research Institute of Robotics and Automation,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学机械工程学院,天津300130 [2]河北省机器人传感与人机融合重点实验室,天津300410 [3]河北工业大学机器人自动化研究所,天津300130

出　　处：《计算机仿真》2019年第5期421-425,共5页Computer Simulation

基　　金：国家自然科学基金(51505123,51728502);河北省自然科学基金(E2015202194);中国博士后基金(2015M580190,2017T100149);河北省高等学校青年拔尖人才计划(BJ2014014);河北省科技计划(15271704)

摘　　要：生物流体的进样和高效泵送是在微流控芯片上进行检测的基础。机械式微泵成本较高,具有复杂的结构并且很难微型化,而交流电热微泵不含运动部件,尺寸小,结构简单易于集成在微流控芯片上。现有对交流电热微泵性能的评价参数只有泵送速率,针对交流电热流场的特点,按照信噪比、净流速和泵送效率等无量纲评价参数设计一种低成本的面向生物流体的泵送装置,以交流电驱动微泵通道内的流体,实现对生物流体的可控泵送。利用多物理场耦合模型,优化交流电热微泵的结构,通过数值计算得出微泵的泵送速率表,对交流电热微泵的应用有重要的参考意义。The injection and efficient pumping of biofluids are the basis to test microfluidic chips.However,the mechanical micropump is expensive,complex and difficult to be miniaturized.There are not any moving parts in the AC electrothermal(ACET) micropump,and it is tiny and simple.Therefore,the ACET micropump is easy to be integrated on the microfluidic chip.The current evaluation parameter for the performance of the ACET micropump is only pumping velocity.For this reason,aiming to the characteristics of AC electrothermal flow,according to the signal-to-noise ratio,net flow rate and pumping efficiency,evaluation parameters of the ACET micropump,a low cost biofluids pumping device were designed.Driven by the alternating current,biofluids are controllable in micropump’s channel.Through the multi-physical fields coupling model,the ACET micropump was optimized.The pumping velocity table was obtained by numerical calculation,which is referable to the application of ACET micropump.

关 键 词：微流控 交流电热 微泵 生物流体 

分 类 号：O69[理学—化学] O657