Amplifying the signal-to-noise ratio of resonant sensors is vital toward the effort to miniaturize devices into the sub-micro and nano regimes. In this work, we demonstrate theoretically and experimentally amplification through mechanically coupled microbeams. The device is composed of two identical clamped-clamped beams, made of polyimide, connected at their middle through a third beam, which acts as a mechanical coupler. Each of the clamped-clamped microbeams and the coupler are designed to be actuated separately, hence providing different possibilities of actuation and sensing. The coupled system is driven into resonance near its first resonance mode and its dynamics is explored via frequency sweeps. The results show significant amplification in the resonator’s amplitude when the signal is measured at the midpoint of the coupler, compared to the response of the individual uncoupled beams. The static pull-in characteristics of the system are also studied. It is shown that the compliant mechanical coupler can serve as a low-power RF switch actuated at low voltage loads.
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ASME 2016 International Mechanical Engineering Congress and Exposition
November 11–17, 2016
Phoenix, Arizona, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5064-0
PROCEEDINGS PAPER
Static and Dynamic Amplification Using Strong Mechanical Coupling Available to Purchase
Saad Ilyas,
Saad Ilyas
King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
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Nizar Jaber,
Nizar Jaber
King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
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Mohammad I. Younis
Mohammad I. Younis
King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
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Saad Ilyas
King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Nizar Jaber
King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Mohammad I. Younis
King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Paper No:
IMECE2016-66104, V010T13A026; 8 pages
Published Online:
February 8, 2017
Citation
Ilyas, S, Jaber, N, & Younis, MI. "Static and Dynamic Amplification Using Strong Mechanical Coupling." Proceedings of the ASME 2016 International Mechanical Engineering Congress and Exposition. Volume 10: Micro- and Nano-Systems Engineering and Packaging. Phoenix, Arizona, USA. November 11–17, 2016. V010T13A026. ASME. https://doi.org/10.1115/IMECE2016-66104
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