Abstract
This paper experimentally demonstrates the ambient pressure drift rejection capability in the full measurement range of the mode-localized sensors. Based on a mode-localized resonant stiffness sensor, the experimental results show that the maximum measurement error of the amplitude ratio readout is ∼2.74% whereas that of the frequency readout is ∼21.63% with a pressure range of [2.6, 20] Pa. And the amplitude ratio based sensitivity is averagely ∼1970.3 times higher than the frequency based sensitivity. It can be concluded that the mode-localized sensors can not only amplify the sensitivity but also reject the ambient pressure drift.
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