TY - GEN
T1 - Characterization of syringe-pump-driven versus pressure-driven microfluidic flows
AU - Zeng, Wen
AU - Li, Songjing
AU - Wang, Zuwen
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/24
Y1 - 2015/11/24
N2 - We compare the dynamic characteristics of syringe-pump-driven and pressure-driven microfluidic flows based on the experimental measurements of the step response of the inlet pressure pi. For syringe-pump-driven flows, periodic fluctuations of pi are observed experimentally, which are induced by the flow-rate fluctuations coming from the mechanical oscillations of the pump motor. For pressure-driven flows, it takes much less time for pi to become steady and no periodic fluctuations are observed. To reduce the deviation between the predicted and the measured pi, a closed-loop control system with feedback of pi is established for pressure-driven flows. Using a PI controller, the deviation can be eliminated, and meanwhile, high stability and accuracy of flow-rate supply can be achieved for pressure-driven flows.
AB - We compare the dynamic characteristics of syringe-pump-driven and pressure-driven microfluidic flows based on the experimental measurements of the step response of the inlet pressure pi. For syringe-pump-driven flows, periodic fluctuations of pi are observed experimentally, which are induced by the flow-rate fluctuations coming from the mechanical oscillations of the pump motor. For pressure-driven flows, it takes much less time for pi to become steady and no periodic fluctuations are observed. To reduce the deviation between the predicted and the measured pi, a closed-loop control system with feedback of pi is established for pressure-driven flows. Using a PI controller, the deviation can be eliminated, and meanwhile, high stability and accuracy of flow-rate supply can be achieved for pressure-driven flows.
KW - closed-loop control
KW - dynamic characteristics
KW - microfluidic systems
KW - pressure-driven
KW - syringe-pump-driven
UR - https://www.scopus.com/pages/publications/84962566089
U2 - 10.1109/FPM.2015.7337207
DO - 10.1109/FPM.2015.7337207
M3 - 会议稿件
AN - SCOPUS:84962566089
T3 - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
SP - 711
EP - 715
BT - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Fluid Power and Mechatronics, FPM 2015
Y2 - 5 August 2015 through 7 August 2015
ER -