Method to Determine the Closed-Loop Precision of Resonant Sensors From Open-Loop Measurements

  title={Method to Determine the Closed-Loop Precision of Resonant Sensors From Open-Loop Measurements},
  author={Tom{\'a}s Manzaneque and Peter G. Steeneken and Farbod Alijani and Murali Krishna Ghatkesar},
  journal={IEEE Sensors Journal},
Resonant sensors determine a sensed parameter by measuring the resonance frequency of a resonator. For fast continuous sensing, it is desirable to operate resonant sensors in a closed-loop configuration, where a feedback loop ensures that the resonator is always actuated near its resonance frequency, so that the precision is maximized even in the presence of drifts or fluctuations of the resonance frequency. However, in a closed-loop configuration, the precision is not only determined by the… 

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