| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 745554 | Sensors and Actuators B: Chemical | 2009 | 4 Pages |
Abstract
We have examined the relative longitudinal flexural resonance frequency shift of a PMN–PT/tin PEMS with a DC bias electric field, E, in humidity detection. We showed that the relative resonance frequency shift could be enhanced by applying an E to the PMN–PT layer during detection. A maximum enhancement of more than three times in resonance frequency shift was observed at E = −6 kV/cm as compared to the resonance frequency shift without a bias field. The maximal relative resonance frequency shift at E = −6 kV/cm was about 1000 times larger than could be accounted for by mass loading alone.
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Authors
Qing Zhu, Wan Y. Shih, Wei-Heng Shih,