Chemical sensor with oscillating cantilevered probe and mechanical stop
Patent
·
OSTI ID:986569
- Reno, NV
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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-00OR22725
- Assignee:
- The Board of Regents of the Nevada System of Higher Education on Behalf of the University of Nevada, Reno (Reno, NV)
- Patent Number(s):
- 7,521,257
- Application Number:
- 10/777,282
- OSTI ID:
- 986569
- Country of Publication:
- United States
- Language:
- English
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