Correcting for two-phase flow in a digital flowmeter
First Claim
1. A flowmeter comprising:
- a vibratable conduit to receive a two-phase mixture that includes a liquid phase and a gas phase;
a driver connected to the conduit and operable to impart motion to the conduit;
a sensor connected to the conduit and operable to sense the motion of the conduit and generate a sensor signal; and
a controller connected to receive the sensor signal, the controller configured to;
determine a first property of the two-phase mixture from the sensor signal; and
determine a mass flow rate measurement of the liquid phase of the two-phase mixture based on a non-parametric mapping function and the first property.
2 Assignments
0 Petitions
Accused Products
Abstract
A flowmeter is disclosed. The flowmeter includes a vibratable conduit, and a driver connected to the conduit that is operable to impart motion to the conduit. A sensor is connected to the conduit and is operable to sense the motion of the conduit and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to detect a single-phase flow condition and process the sensor signal using a first process during the single-phase flow condition to generate a validated mass-flow measurement. The controller is also operable to detect a two-phase flow condition and process the sensor signal using a second process during the two-phase flow condition to generate the validated mass-flow measurement.
97 Citations
25 Claims
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1. A flowmeter comprising:
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a vibratable conduit to receive a two-phase mixture that includes a liquid phase and a gas phase; a driver connected to the conduit and operable to impart motion to the conduit; a sensor connected to the conduit and operable to sense the motion of the conduit and generate a sensor signal; and a controller connected to receive the sensor signal, the controller configured to; determine a first property of the two-phase mixture from the sensor signal; and determine a mass flow rate measurement of the liquid phase of the two-phase mixture based on a non-parametric mapping function and the first property. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A flowmeter controller for use with a vibratable conduit configured to receive a two-phase mixture that includes a liquid phase and a gas phase, a driver connected to the conduit and operable to impart motion to the conduit, and a sensor connected to the conduit and operable to sense the motion of the conduit and generate a sensor signal, the controller comprising:
at least one processing device configured to; receive the sensor signal; determine a first property of the two-phase mixture from the sensor signal; and determine a mass flow rate measurement of the liquid phase of the two-phase mixture based on a non-parametric mapping function and the first property. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of generating a measurement of a property of a two-phase mixture flowing through a conduit, wherein the two-phase fluid includes a liquid phase and a gas phase, the method comprising:
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imparting motion to the conduit sensing motion of the conduit; determining a first property of the two-phase mixture from the sensor signal; and determining a mass flow rate measurement of the liquid phase of the two-phase mixture based on a non-parametric mapping function and the first property. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification