A dynamic piezoelectric micropumping phenomenon
A dynamic micropumping phenomenon has been observed, which is based on acoustic streaming generated by a piezotransducer actuated in d 31 mode without check valve. The use of d 31 mode of a piezoelectric microtransducer can significantly enhance the pumping performance for application in miniaturiza...
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Veröffentlicht in: | Microfluidics and nanofluidics 2010-08, Vol.9 (2-3), p.385-396 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | A dynamic micropumping phenomenon has been observed, which is based on acoustic streaming generated by a piezotransducer actuated in
d
31
mode without check valve. The use of
d
31
mode of a piezoelectric microtransducer can significantly enhance the pumping performance for application in miniaturization. Experimental study of the maximum local velocity has been conducted to investigate the effect of actuator tip configuration on the micropumping performance. In addition, this study also shows the quantitative measurement of the pumping performance such as the pressure head generated as a function of different relevant parameters like applied electrical field, AC frequency, and length of the actuator. |
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ISSN: | 1613-4982 1613-4990 |
DOI: | 10.1007/s10404-009-0556-9 |