Smoothing oscillatory peristaltic pump flow with non-linear passive components

We have explored the effect of adding linear, non-linear resistors and capacitors in novel combinations to selectively smooth the flow from a peristaltic pump. With this novel approach we have reduced our oscillation amplitudes to 0.05mL/min for a 6mL/min flow rate. We have achieved this with the construction of 3D printed millifluidic non-linear valves and produced an effective predictive model for the behaviour of these devices. This valve has then been coupled to the flow from a peristaltic pump with capacitors and a linear resistor. We have compared these results to a predictive model of peristaltic pump flow which qualitatively predicts the behaviour of various configurations of the components and allows further development of intelligently designed flow networks incorporating pulsating flow.