Fluid flow measurement with phase-based diagnostics
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United States of America Patent
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Aug 19, 2014
Grant Date -
Dec 8, 2011
app pub date -
Jun 8, 2010
filing date -
Jun 8, 2010
priority date (Note) -
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Abstract
A system comprises a differential pressure sensor, a process pressure sensor, a temperature sensor and a microprocessor. The differential pressure sensor is positioned to sense differential pressure along a fluid flow, where fluid properties of the fluid flow have first and second phases separated along a transition curve. The process pressure sensor is positioned to sense a pressure of the fluid flow, and the temperature sensor is positioned to sense a temperature of the fluid flow. The microprocessor is coupled to the temperature sensor and the pressure sensor to determine a flow rate, and the microprocessor generates a diagnostic based on the process pressure and the temperature as compared to the transition curve.
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