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Film bulk acoustic wave resonator-based ethanol and acetone sensors and methods using the same
Film bulk acoustic wave resonator-based ethanol and acetone sensors and methods using the same
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机译:基于膜体声波谐振器的乙醇和丙酮传感器及其使用方法
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摘要
The present invention relates generally to the detection of alcohol. The present invention relates more particularly to the film bulk acoustic wave resonator-based devices, and their use in the sensing of ethanol and/or acetone. One aspect of the invention is a method for detecting ethanol, acetone or both in a gaseous sample including: providing a film bulk acoustic wave resonator having a zinc oxide piezoelectric layer; exposing the film bulk acoustic wave resonator to the gaseous sample; determining the resonant frequency of the film bulk acoustic wave resonator; and determining the concentration of ethanol, the concentration of acetone, or both in the gaseous sample using the resonant frequency of the film bulk acoustic wave resonator.
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