脉动微流体跨尺度驱动与传输机理及高精度闭环控释方法研究

项目名称： 脉动微流体跨尺度驱动与传输机理及高精度闭环控释方法研究

项目编号： No.51275327

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 陈立国

作者单位： 苏州大学

项目金额： 80万元

中文摘要： 压电泵由于机构简单、易于集成等优点在微量试剂控释领域具有非常广泛的用途，但由于压电陶瓷非定常脉动驱动的特点，限制了其在更高精度要求场合的应用，而压电泵与流量传感器集成，构成闭环系统成为解决这一问题的重要方法。本项目基于压电泵有效驱动幅值控制的思想，通过解决跨尺度流道内微流体驱动与传输机理、非定常脉动流体整流机理与层流化方法、闭环控释微系统动态特性建模与优化设计以及脉动驱动延时检测微系统实时调控机理和方法等关键技术问题，建立具有自检测与控制功能的微量试剂闭环控制微系统，实现高效高精度试剂输送。

中文关键词： 微泵；压电；微流体；流量传感器；

英文摘要： Piezoelectric pump has gained a wide application in the field of micro doze releasing for its simple structure, and easy integration. But due to the unstable pulsation driven characteristic of piezoelectric ceramic, piezoelectric pump is not put into use yet in the field of higher precision requirement. By combination piezoelectric pump and flow sensor, constituting a closed-loop system, higher precision of piezoelectric pump can be expected. The core idea lies in amplitude modification of piezoelectric pump. In order to fulfill this goal, the following issues were considered and solved. They are the micro fluid actuation and transportation mechanism within micro channels, the modeling and optimization of closed loop micro system for controlled releasing, and real time control mechanism for the delay problem of the pulse driven system. Furthermore, a micro system of micro doze releasing was established which is capable self detection and self control. High precision and high efficient micro doze delivering was tested and achieved by this micro system.

英文关键词： micropump；piezo；microfludic；flow sensor；