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Title: An acoustic micromixer using low-powered voice coil actuation
Authors: Kim, Noori
Chan, Wei Xuan
Ng, Sum Huan
Yoon, Yong-Jin
Keywords: Engineering::Mechanical engineering
Issue Date: 2018
Source: Kim, N., Chan, W. X., Ng, S. H., & Yoon, Y.-J. (2018). An acoustic micromixer using low-powered voice coil actuation. Journal of Microelectromechanical Systems, 27(2), 171-178. doi:10.1109/JMEMS.2017.2788566
Journal: Journal of Microelectromechanical Systems
Abstract: A low-powered acoustic micromixer has been presented in this paper. This newly invented system consists of an open-top mixing chamber and a permanent magnet mixer base. A voice coil is attached to the bottom of the mixing chamber with a polydimethylsiloxane membrane. The optimal driving frequency of each mixing test can be co-determined during (or prior to) the mixing via an electrical impedance (Ze) measurement owing to inherent electro-acoustic coupling of the system. When the mixer is driving at its resonance frequency found from the Ze, mixing efficiency is maximized characterizing millie-watt efficiency to achieve a mixing time scale comparable to other acoustic mixers. In addition, the present mixer demonstrates feasibility of a portable microfluidic system, wherein the degree of mixing may be tracked by Ze monitoring from a smart-phone, which may allow each experiment to be controlled remotely over existing network environment. We believe that our study demonstrates a feasible application of microelectromechanical systems technology for the Internet of Things.
ISSN: 1057-7157
DOI: 10.1109/JMEMS.2017.2788566
Rights: © 2018 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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