Characterization of Electromagnetic Valveless Micropump
Abstract: This paper presents
an electromagnetically-actuated micropump for microfluidicapplication. The
system comprises two modules; an electromagnetic actuator module and adiffuser
module. Fabrication of the diffuser module can be achieved using
photolithographyprocess with a master template and a PDMS prepolymer as the
structural material. The actuatormodule consists of two power inductors and two
NdFeB permanent magnets placed between the diffuser elements. The choice of
this actuation principle merits from low operating voltage(1.5 Vdc) and the
flow direction can be controlled by changing the orientation of the magnetvibration.
Maximum volumetric flow rate of the fabricated device at zero backpressure is
0.9756 µLs-1 and 0.4659 µLs-1 at the hydrostatic backpressure of 10 mmH2O at 9
Hz of switchingspeed.
Keywords: Valveless micropump,
electromagnetic actuation, modular micropump, PDMS membrane, numerical
simulation
Author: M. Q. A Rusli, Pei
Song Chee
Journal Code: jptkomputergg170088
