Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate
2005-01-19
2008-07-08
Williams, Hezron E. (Department: 2856)
Measuring and testing
Vibration
By mechanical waves
C073S024050, C073S642000, C073S861250
Reexamination Certificate
active
07395711
ABSTRACT:
A system for determining property of multiphase fluids based on ultrasonic diffraction grating spectroscopy includes a diffraction grating on a solid in contact with the fluid. An interrogation device delivers ultrasound through the solid and a captures a reflection spectrum from the diffraction grating. The reflection spectrum exhibits peaks whose relative size depends on the properties of the various phases of the multiphase fluid. For example, for particles in a liquid, the peaks exhibit dependence on the particle size and the particle volume fraction. Where the exact relationship is know know a priori, data from different peaks of the same reflection spectrum or data from the peaks of different spectra obtained from different diffraction gratings can be used to resolve the size and volume fraction.
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Battelle (Memorial Institute)
Klarquist & Sparkman, LLP
Saint-Surin Jacques M.
Williams Hezron E.
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