Characterization of a Sub-Atmospheric Pressure-Inducing Micropump Based on Flow Rate and Gauge Pressure Measurements
The pumping mechanism in multi-inlet microfluidic channels usually requires multiple micropumps to be separately attached to each inlet. Unfortunately, this may create fluid leakage resulting from a considerably high internal pressure. To address this, a passive sub-atmospheric pressure-inducing mic...
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| Main Authors: | , |
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| Format: | Article |
| Language: | en |
| Published: |
John Wiley & Sons, Inc.
2023
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/41700/1/Characterization%20of%20a%20Sub.pdf http://ir.unimas.my/id/eprint/41700/ https://onlinelibrary.wiley.com/doi/full/10.1002/ceat.202200366 |
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| Summary: | The pumping mechanism in multi-inlet microfluidic channels usually requires multiple micropumps to be separately attached to each inlet. Unfortunately, this may create fluid leakage resulting from a considerably high internal pressure. To address this, a passive sub-atmospheric pressure-inducing micropump is proposed and its performance is characterized as a function of the flow rate and the gauge pressure. With this pump, a sufficiently high flow rate is generated, comparable to some active-piezoelectric micropumps. The gauge pressure is exponentially
descending with time and can be crudely classified into three regions of high, moderate, and slow pressure-release times. Overall, the stabilized pressure is identified within 70 s < t £ 300 s for slow rate mixing while rapid mixing is applicable at t £ 70 s. |
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