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 each inlet. Unfortunately, this may create fluid leakage resulting from a considerably high internal pressure. To address this, passive sub-atmospheric pressure-inducing micropump is proposed and its performance characterized as function of the flow rate gauge With pump, sufficiently generated, comparable some active-piezoelectric micropumps. pressure exponentially descending with time can crudely classified into three regions high, moderate, slow pressure-release times. Overall, stabilized identified within 70 s < t ≤ 300 for mixing while rapid applicable at s.