驱动电压波形修圆对微流体脉冲惯性力和驱动效果的影响

王洪成; 侯丽雅; 章维一

doi:10.3788/OPE.20122010.2251

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驱动电压波形修圆对微流体脉冲惯性力和驱动效果的影响

微纳技术与精密机械 | 更新时间：2020-08-12

- 驱动电压波形修圆对微流体脉冲惯性力和驱动效果的影响
- Influence of rounded driving voltage waves on micro-fluidic pulse inertial force and driving effects
- 光学精密工程 2012年20卷第10期页码：2251-2259
- 作者机构：
  
  南京理工大学机械工程学院,江苏南京,中国,210094
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.51175268,No.11102090)();高等学校博士学科点专项科研基金资助项目(No.20113219110004)()
- DOI：10.3788/OPE.20122010.2251
  中图分类号： O35;TP273
- 收稿日期：2012-06-26，
  
  修回日期：2012-08-07，
  
  纸质出版日期：2012-10-10
- 稿件说明：
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王洪成, 侯丽雅, 章维一. 驱动电压波形修圆对微流体脉冲惯性力和驱动效果的影响[J]. 光学精密工程, 2012,20(10): 2251-2259

WANG Hong-cheng, HOU Li-ya, ZHANG Wei-yi. Influence of rounded driving voltage waves on micro-fluidic pulse inertial force and driving effects[J]. Editorial Office of Optics and Precision Engineering, 2012,20(10): 2251-2259
王洪成, 侯丽雅, 章维一. 驱动电压波形修圆对微流体脉冲惯性力和驱动效果的影响[J]. 光学精密工程, 2012,20(10): 2251-2259 DOI： 10.3788/OPE.20122010.2251.

WANG Hong-cheng, HOU Li-ya, ZHANG Wei-yi. Influence of rounded driving voltage waves on micro-fluidic pulse inertial force and driving effects[J]. Editorial Office of Optics and Precision Engineering, 2012,20(10): 2251-2259 DOI： 10.3788/OPE.20122010.2251.

摘要

介绍了微流体脉冲驱动-控制技术

分析了微流体脉冲驱动-控制过程

指出在这一过程中影响微流体流动的主要因素是微流道固壁加速度和流体内部的黏性力。采用"椭圆修圆法"对方波驱动电压进行修圆

针对修圆点的位置决定微流体的驱动方向

获得了不同修圆位置和修圆系数的驱动电压修圆波形。通过实验探索了波形修圆对微流道固壁运动加速度、微流体脉冲惯性力和流体驱动效果的影响规律并进行了机理分析。所得流体体积流量可在0~15.4 pl/min连续变化

远小于现有的微流体驱动技术。本文的研究成果可为微流体脉冲驱动-控制技术在微流体系统中的进一步应用提供参考。

Abstract

Pulse driving and controlling technology of micro-fluids was introduced. The pulse driving and controlling process of micro-fluids was analyzed in detail and it points out that the acceleration of micro channel solid wall and the viscosity force of micro-fluidic are the main factors that influence on the flow of the micro-fluids. A method of "elliptic rounding" was adopted to round driving voltage waves. As the driving directions of the micro-fluids were determined by the locations of rounding points

a series of waves with different rounding locations and rounding coefficients were obtained. The influence rules of rounded waves on the acceleration of micro channel solid wall

micro-fluidic pulse inertial force and driving effects were researched by experiments. The experimental result indicates that the flow rate of micro fluidic volume can be in the range of 0~15.4 pl/min

which is more better than that of the current micro driving technology. The research results can provide a reference for the research on the further application of pulse driving and controlling technology of micro-fluids in micro-fluidic systems.

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references

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