DocumentCode :
2653974
Title :
A novel PDMS diaphragm micropump based on ICPF actuator
Author :
Wei, Wei ; Guo, Shuxiang
Author_Institution :
Coll. of Autom., Pattern Recognition & Intell. Syst., Harbin Eng. Univ., Harbin, China
fYear :
2010
fDate :
14-18 Dec. 2010
Firstpage :
1577
Lastpage :
1583
Abstract :
This article presented the development of a novel polydimethylsiloxane (PDMS) micro pump based on ICPF (Ionic Conducting Polymer Film) actuator toward biomedical system and drug delivery system. ICPF actuator provided an actuating approach for the demand of the miniaturization and low actuation voltages. This micropump is composed of ICPF equipped in a sealed actuating chamber, two check valves which are normally closed. Due to ICPF bending force and thermo pneumatic force generated by Joel heat, the PDMS diaphragm which adheres to the ICPF is driven reciprocating. So the liquid in the working liquid chamber can be pumped from inlet to outlet. A physics based model was developed to show the relationship between input voltage and flow rate. Superior pumping performance was achieved when the duty ratio of the voltage applied to the ICPF actuator was 40%. While in comparison, the pump with sealed actuating chamber design was better in performance than that with opening chamber. And some experiments were manipulated to show the characteristics of the ICPF actuator and the check valve. Experimental results indicate that a flow rate as high as 202 μl/min at a driving frequency of 2Hz and at an input voltage of 5V. The development of this micropump can be a promising approach for further biomedical and chemical analysis applications.
Keywords :
bending; diaphragms; drug delivery systems; microactuators; micropumps; microvalves; pneumatic actuators; polymer films; ICPF actuator; Joel heat; PDMS diaphragm micropump; bending force; biomedical system; check valves; driving frequency; drug delivery system; input voltage; ionic conducting polymer film; low actuation voltages; miniaturization; polydimethylsiloxane micropump; sealed actuating chamber; thermo pneumatic force; working liquid chamber; Actuators; Fabrication; Force; Microfluidics; Micropumps; Valves;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Robotics and Biomimetics (ROBIO), 2010 IEEE International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-9319-7
Type :
conf
DOI :
10.1109/ROBIO.2010.5723565
Filename :
5723565
Link To Document :
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