Selective power transmission using a shift in resonant frequency due to the transportation of liquid metal droplets

Abstract We devised a signal-switching mechanism (SSM) based on the transportation of liquid metal droplets (LMDs). This method transmits power selectively to the light-emitting diode (LED) connected with a pair of electrodes, including a transported LMD. When an LMD is transported through a channel...

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Main Authors: Shinji Bono, Hinata Mori, Ayano Shimizu, Ryotaro Nakai, Satoshi Konishi
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-95377-0
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author Shinji Bono
Hinata Mori
Ayano Shimizu
Ryotaro Nakai
Satoshi Konishi
author_facet Shinji Bono
Hinata Mori
Ayano Shimizu
Ryotaro Nakai
Satoshi Konishi
author_sort Shinji Bono
collection DOAJ
description Abstract We devised a signal-switching mechanism (SSM) based on the transportation of liquid metal droplets (LMDs). This method transmits power selectively to the light-emitting diode (LED) connected with a pair of electrodes, including a transported LMD. When an LMD is transported through a channel between multiple pairs of electrodes, the capacitance of the pair of electrodes decreases. In the SSM, we connected the electrodes with a coil and LEDs and investigated the frequency response of the impedance of the mechanism. As a result, we find the resonant phenomena of the SSM and the shift of the resonant frequency owing to the transportation of the LMD. By applying an alternating voltage, whose frequency corresponded with that of the resonant frequency of the LED-connected SSM, we could selectively transmit power to the LED activated by an LMD. Our equivalent circuit model quantitatively predicts the transmitted power and the shift in the resonant frequency due to the transportation of LMDs. The SSM using LMDs has a promising potential to contribute to soft multiplexers without complex wiring, where they can help integrate not only multiple sensors but also actuators as well.
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issn 2045-2322
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spelling doaj-art-fd80892b32534f60b0cdbbc0f1a8af5e2025-08-20T03:13:57ZengNature PortfolioScientific Reports2045-23222025-04-0115111010.1038/s41598-025-95377-0Selective power transmission using a shift in resonant frequency due to the transportation of liquid metal dropletsShinji Bono0Hinata Mori1Ayano Shimizu2Ryotaro Nakai3Satoshi Konishi4Research Organization of Science and Technology, Ritsumeikan UniversityGraduate Course of Science and Engineering, Ritsumeikan UniversityGraduate Course of Science and Engineering, Ritsumeikan UniversityGraduate Course of Science and Engineering, Ritsumeikan UniversityResearch Organization of Science and Technology, Ritsumeikan UniversityAbstract We devised a signal-switching mechanism (SSM) based on the transportation of liquid metal droplets (LMDs). This method transmits power selectively to the light-emitting diode (LED) connected with a pair of electrodes, including a transported LMD. When an LMD is transported through a channel between multiple pairs of electrodes, the capacitance of the pair of electrodes decreases. In the SSM, we connected the electrodes with a coil and LEDs and investigated the frequency response of the impedance of the mechanism. As a result, we find the resonant phenomena of the SSM and the shift of the resonant frequency owing to the transportation of the LMD. By applying an alternating voltage, whose frequency corresponded with that of the resonant frequency of the LED-connected SSM, we could selectively transmit power to the LED activated by an LMD. Our equivalent circuit model quantitatively predicts the transmitted power and the shift in the resonant frequency due to the transportation of LMDs. The SSM using LMDs has a promising potential to contribute to soft multiplexers without complex wiring, where they can help integrate not only multiple sensors but also actuators as well.https://doi.org/10.1038/s41598-025-95377-0Signal-switching mechanismLiquid metal dropletsResonant circuit
spellingShingle Shinji Bono
Hinata Mori
Ayano Shimizu
Ryotaro Nakai
Satoshi Konishi
Selective power transmission using a shift in resonant frequency due to the transportation of liquid metal droplets
Scientific Reports
Signal-switching mechanism
Liquid metal droplets
Resonant circuit
title Selective power transmission using a shift in resonant frequency due to the transportation of liquid metal droplets
title_full Selective power transmission using a shift in resonant frequency due to the transportation of liquid metal droplets
title_fullStr Selective power transmission using a shift in resonant frequency due to the transportation of liquid metal droplets
title_full_unstemmed Selective power transmission using a shift in resonant frequency due to the transportation of liquid metal droplets
title_short Selective power transmission using a shift in resonant frequency due to the transportation of liquid metal droplets
title_sort selective power transmission using a shift in resonant frequency due to the transportation of liquid metal droplets
topic Signal-switching mechanism
Liquid metal droplets
Resonant circuit
url https://doi.org/10.1038/s41598-025-95377-0
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AT hinatamori selectivepowertransmissionusingashiftinresonantfrequencyduetothetransportationofliquidmetaldroplets
AT ayanoshimizu selectivepowertransmissionusingashiftinresonantfrequencyduetothetransportationofliquidmetaldroplets
AT ryotaronakai selectivepowertransmissionusingashiftinresonantfrequencyduetothetransportationofliquidmetaldroplets
AT satoshikonishi selectivepowertransmissionusingashiftinresonantfrequencyduetothetransportationofliquidmetaldroplets