Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Reexamination Certificate
2009-09-17
2011-11-15
Thompson, Jewel V (Department: 2855)
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
Reexamination Certificate
active
08056424
ABSTRACT:
A fluid flow device having a vortex generator in two or more channels, each channel having a section to scale the flow velocity to a desirable range of Reynolds number, and vortex shedding and/or vortex passing frequency. Said flow device may be used as a flow meter by measuring the vortex shedding/passing frequency from each vortex generator. Further improvement is had by selecting the highest usable frequency, with its corresponding scaling factor, as the most-precise and fastest-response measurement output of the flow-measuring device. Still further improvement is obtained by cross-checking all usable frequencies against each other to detect failure of one or more vortex shedding/passing sensors.
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Edell Shapiro & Finnan LLC
Maahs Michael David
Palacios Sean P.
Thompson Jewel V
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