Measuring and testing – Volume or rate of flow
Reexamination Certificate
2007-07-03
2007-07-03
Thompson, Jewel (Department: 2855)
Measuring and testing
Volume or rate of flow
Reexamination Certificate
active
10964043
ABSTRACT:
A flow measurement apparatus is provided that combines the functionality of an apparatus that uses strain-based sensors and ultrasonic sensors to measure the speed of sound propagating through a fluid flowing within a pipe, and measure pressures disturbances (e.g. vortical disturbances or eddies) moving with a fluid to determine respective parameters of the flow propagating through a pipe. The apparatus includes a sensing device that includes an array of pressure sensors used to measure the acoustic and convective pressure variations in the flow to determine desired parameters and an ultrasonic meter portion to measure the velocity and volumetric flow of the fluid. In response to an input signal or internal logic, the processor can manually or dynamically switch between the pressure sensors and ultrasonic sensors to measure the parameters of the flow. The flow measurement apparatus thereby provides a robust meter capable of measuring fluid flows having a wide range of different characteristics and flows exposed to different environmental conditions.
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Gysling Daniel L.
Maron Robert
O'Keefe Christian
CiDRA Corporation
Crawford Robert D.
Thompson Jewel
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