The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2014
Filed:
Jan. 20, 2011
Hongyu Yu, Tempe, AZ (US);
Xiaotun Qiu, Tempe, AZ (US);
Hongyu Yu, Tempe, AZ (US);
Xiaotun Qiu, Tempe, AZ (US);
Abstract
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.