Based on the flow characteristics in diffuser/nozzle, a new type of V-shape tube used in the valveless piezoelectric pump is proposed for micro total analysis systems.

• 摘要基于无阀压电泵中扩散／渐缩管流动特性，提出一种用于无阀压电泵的新型"V"形管，以满足微型全分析系统的应用要求。