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[Conference]Transport velocity of droplets on ratchet conveyors is determined by quantized step prob


We report the first characterization of the transport velocity for droplets driven on ratchet conveyors. Through this study, we determined that the minimum vibration amplitude to initiate droplet transport does not occur at the largest movement of the droplet edges and is thus not simply a resonance effect. We have also discovered that the transport velocity is correlated with the vibration amplitude, but ultimately determined by the probability of the droplet edges advancing by a discrete number of steps.

Conference: Micro Electro Mechanical Systems (MEMS), 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS)

Date of Conference: 22-26 Jan. 2017

Date Added to IEEE Xplore: 28 February 2017

DOI: 10.1109/MEMSYS.2017.7863672

Hal R. Holmes

University of Washington, Seattle, USA

Karl F. Böhringer

University of Washington, Seattle, USA

Link: http://ieeexplore.ieee.org/abstract/document/7863672/

#MEMS #digitalmicrofluidics

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