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Cantilevered probe detector with piezoelectric element

United States Patent

July 10, 2012
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A disclosed chemical detection system for detecting a target material, such as an explosive material, can include a cantilevered probe, a probe heater coupled to the cantilevered probe, and a piezoelectric element disposed on the cantilevered probe. The piezoelectric element can be configured as a detector and/or an actuator. Detection can include, for example, detecting a movement of the cantilevered probe or a property of the cantilevered probe. The movement or a change in the property of the cantilevered probe can occur, for example, by adsorption of the target material, desorption of the target material, reaction of the target material and/or phase change of the target material. Examples of detectable movements and properties include temperature shifts, impedance shifts, and resonant frequency shifts of the cantilevered probe. The overall chemical detection system can be incorporated, for example, into a handheld explosive material detection system.
Adams; Jesse D. (Reno, NV), Sulchek; Todd A. (Oakland, CA), Feigin; Stuart C. (Reno, NV)
Board of Regents of the Nevada System of Higher Education (Reno, NV)
12/ 748,788
March 29, 2010
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT This invention was made with Government support under Prime Contract No. DE-AC05-00OR22725 awarded to UT-Battelle, LLC, by the U.S. Department of Energy and a subcontract awarded to the University of Nevada, Reno by UT-Battelle, LLC. The Government may have certain rights in this invention.