Nonlinear Operation of Resonant Sensors Based On Weakly Coupled Resonators: Theory and Modeling

@article{Juillard2019NonlinearOO,
  title={Nonlinear Operation of Resonant Sensors Based On Weakly Coupled Resonators: Theory and Modeling},
  author={J{\'e}r{\^o}me Juillard and Ali Mostafa and Pietro M. Ferreira},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control},
  year={2019},
  volume={66},
  pages={1950-1961}
}
This theoretical work investigates the properties of nonlinearly operated weakly coupled resonators (WCRs) for resonant sensing applications. We propose an analysis framework for mutually injection-locked oscillators (MILOs) and mode-localized oscillators (MOLOs), subject to nonlinear restoring and damping forces. Under some simplifying assumptions, three sensor architectures are investigated and compared, highlighting several common features, such as: 1) the insensitivity of the amplitude… 
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