An acoustic micromixer using low-powered voice coil actuation
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...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/142337 |
| _version_ | 1811677684020805632 |
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| author | Kim, Noori Chan, Wei Xuan Ng, Sum Huan Yoon, Yong-Jin |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Kim, Noori Chan, Wei Xuan Ng, Sum Huan Yoon, Yong-Jin |
| author_sort | Kim, Noori |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T02:41:16Z |
| format | Journal Article |
| id | ntu-10356/142337 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:41:16Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1423372020-06-19T05:05:26Z An acoustic micromixer using low-powered voice coil actuation Kim, Noori Chan, Wei Xuan Ng, Sum Huan Yoon, Yong-Jin School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Microfluidic Micromixer 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. ASTAR (Agency for Sci., Tech. and Research, S’pore) MOE (Min. of Education, S’pore) 2020-06-19T05:05:26Z 2020-06-19T05:05:26Z 2018 Journal Article 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 1057-7157 https://hdl.handle.net/10356/142337 10.1109/JMEMS.2017.2788566 2-s2.0-85040980653 2 27 171 178 en Journal of Microelectromechanical Systems © 2018 IEEE. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Microfluidic Micromixer Kim, Noori Chan, Wei Xuan Ng, Sum Huan Yoon, Yong-Jin An acoustic micromixer using low-powered voice coil actuation |
| title | An acoustic micromixer using low-powered voice coil actuation |
| title_full | An acoustic micromixer using low-powered voice coil actuation |
| title_fullStr | An acoustic micromixer using low-powered voice coil actuation |
| title_full_unstemmed | An acoustic micromixer using low-powered voice coil actuation |
| title_short | An acoustic micromixer using low-powered voice coil actuation |
| title_sort | acoustic micromixer using low powered voice coil actuation |
| topic | Engineering::Mechanical engineering Microfluidic Micromixer |
| url | https://hdl.handle.net/10356/142337 |
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