Micropump operation at various driving signals: numerical simulation and experimental verification

Impact of the shapes of driving signals on micropump operation is investigated by numerical simulations and by experimental verification on a strip-type microthrottle pump. Numerical simulation is based on an advanced, fully-coupled electro, fluid and solid-mechanics model, enabling detailed analysi...

Full description

Saved in:
Bibliographic Details
Published inMicrosystem technologies : sensors, actuators, systems integration Vol. 21; no. 7; pp. 1379 - 1384
Main Authors Pečar, Borut, Vrtačnik, Danilo, Resnik, Drago, Možek, Matej, Dolžan, Tine, Brajkovič, Robert, Križaj, Dejan
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 11.07.2015
Subjects
Electronics and Microelectronics
Engineering
Instrumentation
Mechanical Engineering
Nanotechnology
Technical Paper
PDMS Elastomer
Sinusoidal Excitation
Cavitation
Excitation Signal
PDMS
Online AccessGet full text

Cover

More Information
Summary:Impact of the shapes of driving signals on micropump operation is investigated by numerical simulations and by experimental verification on a strip-type microthrottle pump. Numerical simulation is based on an advanced, fully-coupled electro, fluid and solid-mechanics model, enabling detailed analysis of device operation. Flowrate performance and cavitation risk were evaluated by analyzing pressure response in critical points near and under the membrane and by analyzing simulated flowrate response on various excitation waveforms. Sinusoidal excitation provides lower flowrate compared to square-wave excitation (typically 33 % lower) but with significantly smaller risk of cavitation. Sawtooth excitation was found the most inappropriate waveform, providing lowest flowrate performance at high cavitation probability.
ISSN:0946-7076
1432-1858
DOI:10.1007/s00542-014-2309-2