Simultaneous electrical and mechanical resonance drive for large signal amplification of micro resonators

M. H. Hasan, F. M. Alsaleem, Nizar Jaber, Md Abdullah Al Hafiz, Mohammad I. Younis

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Achieving large signal-noise ratio using low levels of excitation signal is key requirement for practical applications of micro and nano electromechanical resonators. In this work, we introduce the double electromechanical resonance drive concept to achieve an order-of-magnitude dynamic signal amplification in micro resonators. The concept relies on simultaneously activating the micro-resonator mechanical and electrical resonance frequencies. We report an input voltage amplification up to 15 times for a micro-resonator when its electrical resonance is tuned to match the mechanical resonance that leads to dynamic signal amplification in air (Quality factor enhancement). Furthermore, using a multi-frequency excitation technique, input voltage and vibrational amplification of up to 30 times were shown for the same micro-resonator while relaxing the need to match its mechanical and electrical resonances.
Original languageEnglish (US)
Pages (from-to)015312
JournalAIP Advances
Volume8
Issue number1
DOIs
StatePublished - Jan 12 2018

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