Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – By vibration
Reexamination Certificate
2008-04-01
2008-04-01
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
By vibration
C073S053040, C073S061730, C073S574000
Reexamination Certificate
active
07350402
ABSTRACT:
A method for measuring changes in the composition of fluids, for medical diagnostics or quality control of fluids, comprising:One) placing a drop of fluid upon a quartz crystal;Two) generating ultrasonic vibrations of a predetermined frequency in the crystal; with the vibrating wave directed into the drop of fluid in a vertical direction relative to the area of the crystal upon which the drop is placed;Three) measuring voltage changes over a bridge circuit connected to the crystal, over a time period during which total or partial evaporation of the liquid occurs;Four) comparing the measurement result to previously obtained results or to predetermined data;Five) detecting changes in the composition of the fluid, from the results. detecting changes in the composition of the fluid, from said results.
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Dowell Michael B.
Goutorova Valentina B.
Pelushenko Artem S.
Sanin Anatoly Gennadievich
Vacca Christina V.
Aria Analytics, Inc.
Saint-Surin Jacques M.
Williams Hezron
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