Chemical sensor with oscillating cantilevered probe

Adams, Jesse D

Title: Chemical sensor with oscillating cantilevered probe

Patent · Tue Feb 05 00:00:00 EST 2013

OSTI ID:1083222

Adams, Jesse D

The invention provides a method of detecting a chemical species with an oscillating cantilevered probe. A cantilevered beam is driven into oscillation with a drive mechanism coupled to the cantilevered beam. A free end of the oscillating cantilevered beam is tapped against a mechanical stop coupled to a base end of the cantilevered beam. An amplitude of the oscillating cantilevered beam is measured with a sense mechanism coupled to the cantilevered beam. A treated portion of the cantilevered beam is exposed to the chemical species, wherein the cantilevered beam bends when exposed to the chemical species. A second amplitude of the oscillating cantilevered beam is measured, and the chemical species is determined based on the measured amplitudes.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

Assignee:: Board of Regents of the Nevada System of Higher Education, On Behalf of the University of Nevada, Reno (Reno, NV)

Patent Number(s):: 8,367,426

Application Number:: 12/416,852

OSTI ID:: 1083222

Country of Publication:: United States

Language:: English

References (33)

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