Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Chemical analysis
Reexamination Certificate
2007-10-23
2007-10-23
Sines, Brian (Department: 1743)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Chemical analysis
C422S050000, C422S062000, C422S067000, C422S068100, C422S082010, C422S083000, C422S098000, C073S001010, C073S001020, C436S043000, C436S149000, C700S001000, C700S266000, C702S001000, C702S019000, C702S023000, C702S030000, C702S031000, C702S032000, C702S057000
Reexamination Certificate
active
10677684
ABSTRACT:
A system and method of fluctuation enhanced gas-sensing using SAW devices includes processes for improved chemical analyte detection, identification, and quantification through the measurement and spectral analysis of frequency fluctuations in the instantaneous frequency of a chemical sensor arranged to produce an oscillatory output signal when exposed to chemical substances. The system and method may use a chemical sensor, such as a surface acoustic wave (SAW) device. The spectral analysis produces the power spectral density of the frequency fluctuations, which are represented as a pattern that includes information about the analyte(s) such as, total adsorbed gas mass and diffusion coefficients. The diffusion coefficients may then be used to determine the number of molecule types and/or the concentration of each.
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Kish Laszlo B.
Schmera Gabor
Friedl Ryan J.
Lee Allan Y.
Lipovsky Pete A.
Sines Brian
United States of America as Represented By The Secretary of the
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