Flow-Ratio Monitoring in a Microchannel by Liquid-Liquid Interface Interferometry†
AbstractA new method to monitor the relative flow rates of two different liquids in a microchannel is presented. By using a simple out-of-plane interferometer setup, shifts in the position of the interface between the two liquids can be determined. This label-free and real-time approach to observe the interface position yields the ratio of the flow rates. Applying an out-of-plane geometry allows the use of a flexible setup of chip-external optical components such as a laser and an image sensor, which is an advantage over fixed in-plane optics. With this measurement method we are able to monitor a change of about 1% of the relative flow rate between two fluidic inlets.
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Oellers, M.; Bunge, F.; Vinayaka, P.; Driesche, S.; Vellekoop, M.J. Flow-Ratio Monitoring in a Microchannel by Liquid-Liquid Interface Interferometry. Proceedings 2017, 1, 498.
Oellers M, Bunge F, Vinayaka P, Driesche S, Vellekoop MJ. Flow-Ratio Monitoring in a Microchannel by Liquid-Liquid Interface Interferometry. Proceedings. 2017; 1(4):498.Chicago/Turabian Style
Oellers, Martin; Bunge, Frank; Vinayaka, Poornanchandra; Driesche, Sander van den; Vellekoop, Michael J. 2017. "Flow-Ratio Monitoring in a Microchannel by Liquid-Liquid Interface Interferometry." Proceedings 1, no. 4: 498.
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