Olsson A., Stemme E., Stemme G., Stemme E., Stemme G.
Department of Signals, Sensors and Systems, SE
Keywords: Matlab, numerical design study, valveless diffuser pump
A lumped-mass model is used to improve the design of the valveless diffuser pump. The model is implemented using MATLAB and tested for different previously reported pumps. The flow-pressure characteristics are predicted for different excitation levels. It is seen that low chamber pressure limits the possible excitation level. A pump with two serially connected pump chambers working in anti-phase is found advantageous compared with a single chamber pump. Indication is found that down scaling of the diffuser elements from 80ïïïï80 µm throat cross-sectional area to 40ïïïï40 µm throat cross-sectional area increase the attainable pressure head. The possibility to use deposited PZT instead of discs fixed with adhesive is shown promising.
Journal: TechConnect Briefs
Volume: Technical Proceedings of the 1999 International Conference on Modeling and Simulation of Microsystems
Published: April 19, 1999
Pages: 581 - 584
Industry sector: Sensors, MEMS, Electronics
Topics: Micro & Bio Fluidics, Lab-on-Chip, Modeling & Simulation of Microsystems
ISBN: 0-9666135-4-6