Low voltage plug flow pumping using anisotropic electrode arrays
| Autor: | A. B. D. Brown, Moeketsi Mpholo, Charles G. Smith |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Materials science
Plug flow business.industry Microfluidics Metals and Alloys Analytical chemistry Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Indium tin oxide Electrode Materials Chemistry Fluid dynamics Optoelectronics Electrical and Electronic Engineering Anisotropy business Instrumentation Low voltage Voltage |
| Zdroj: | Sensors and Actuators B: Chemical. 92:262-268 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/s0925-4005(03)00289-2 |
| Popis: | Arrays of asymmetric interdigitated electrodes were used to produce fluid flow of an ionic solution. The electrodes were made of transparent (transmission ∼80%) indium tin oxide (ITO) and were powered by AC voltages of less than 5 V rms . We experimentally confirm predictions that the velocity of the fluid increases with the decreasing dimensions of the electrodes and we achieved velocities in excess of 450 μm/s at 2.2 V rms . Plug flow for the different electrode dimensions was obtained by placing one array at the bottom of a solution and the other at the top, leaving a gap of 280 μm. The experimental observations fit well with theory. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect