High-performance magnetic active-valve micropump

Author

Shen, M. ; Gijs, M.A.M.

Author_Institution

Lab. of Microsyst., Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland

fYear

2009

fDate

21-25 June 2009

Firstpage

1234

Lastpage

1237

Abstract

We report on a high-efficiency and self-priming active-valve micropump that is magnetically actuated by arc-shaped NdFeB permanent magnets mounted on the rotation axis of a DC minimotor. For the realisation, we use affordable powder blasting microfabrication and polydimethyl-siloxane (PDMS) molding technologies. A flow rate of 1.5 mL/min and 60 mbar backpressure are obtained at the actuation resonance frequency of around 10 Hz. This performance is much better than reported so far for such type of micropump.

Keywords

boron alloys; iron alloys; microfabrication; microfluidics; micropumps; neodymium alloys; permanent magnets; DC minimotor; NdFeB permanent magnets; actuation resonance frequency; arc-shaped magnet; magnetic active-valve; micropump; polydimethyl-siloxane molding; powder blasting microfabrication; Actuators; Biochemical analysis; Biomembranes; Energy consumption; Glass; Magnetic analysis; Magnetic resonance; Magnetic separation; Micropumps; Permanent magnets; Reciprocating micropump; active-valve; arc-shaped magnet; magnetic actuator;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems Conference, 2009. TRANSDUCERS 2009. International

Conference_Location

Denver, CO

Print_ISBN

978-1-4244-4190-7

Electronic_ISBN

978-1-4244-4193-8

Type

conf

DOI

10.1109/SENSOR.2009.5285881

Filename

5285881