Meter electronics and methods for rapidly determining a mass fraction of a multi-phase fluid from a coriolis flow meter signal
First Claim
1. Meter electronics (20) for determining a mass fraction of flow components in a flow material flowing through a flow meter (5), the meter electronics (20) comprising:
- an interface (201) for receiving a frequency response of the flow material; and
a processing system (203) in communication with the interface (201) and configured to receive the frequency response from the interface (201), break out the frequency response into at least a gas frequency component and a fluid frequency component, determine an overall density from the frequency response, determine a gas density from the gas frequency component, determine the void fraction of gas from the frequency response and one or more of the gas frequency component and the fluid frequency component, and determine the mass fraction from the void fraction of gas multiplied by a ratio of the gas density divided by the overall density.
1 Assignment
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Accused Products
Abstract
Meter electronics (20) for determining a mass fraction of flow components in a flow material flowing is provided according to an embodiment of the invention. The meter electronics (20) include an interface (201) for receiving a frequency response of the flow material and a processing system (203). The processing system (203) receives the frequency response from the interface (201) and breaks out the frequency response into at least a gas frequency component and a fluid frequency component. The processing system (203) determines an overall density from the frequency response and determines a gas density from the gas frequency component. The processing system (203) determines the void fraction of gas from the frequency response and one or more of the gas frequency component and the fluid frequency component. The processing system (203) determines the mass fraction from the void fraction of gas multiplied by a ratio of the gas density divided by the overall density.
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Citations
36 Claims
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1. Meter electronics (20) for determining a mass fraction of flow components in a flow material flowing through a flow meter (5), the meter electronics (20) comprising:
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an interface (201) for receiving a frequency response of the flow material; and a processing system (203) in communication with the interface (201) and configured to receive the frequency response from the interface (201), break out the frequency response into at least a gas frequency component and a fluid frequency component, determine an overall density from the frequency response, determine a gas density from the gas frequency component, determine the void fraction of gas from the frequency response and one or more of the gas frequency component and the fluid frequency component, and determine the mass fraction from the void fraction of gas multiplied by a ratio of the gas density divided by the overall density. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for determining a mass fraction of flow components in a flow material flowing through a flow meter, the method comprising:
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receiving a frequency response of the flow material in a meter electronics of the flow meter; the meter electronics breaking out the frequency response into at least a gas frequency component and a fluid frequency component; the meter electronics determining an overall density from the frequency response; the meter electronics determining a gas density from the gas frequency component; the meter electronics determining the void fraction of gas from the frequency response and one or more of the gas frequency component and the fluid frequency component; and the meter electronics determining the mass fraction from the void fraction of gas multiplied by a ratio of the gas density divided by the overall density. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for determining a mass fraction of flow components in a flow material flowing through a flow meter, the method comprising:
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receiving a frequency response of the flow material in a meter electronics of the flow meter; the meter electronics processing the frequency response with a notch filter that substantially rejects one of a gas frequency component and a fluid frequency component; the meter electronics determining an overall density from the frequency response; the meter electronics determining a gas density from the gas frequency component; the meter electronics determining the void fraction of gas from the frequency response and one or more of the gas frequency component and the fluid frequency component; and the meter electronics determining the mass fraction from the void fraction of gas multiplied by a ratio of the gas density divided by the overall density. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for determining a mass fraction of flow components in a flow material flowing through a flow meter, the method comprising:
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receiving a frequency response of the flow material in a meter electronics of the flow meter; the meter electronics filtering the frequency response with a first filter that substantially rejects the gas frequency component and substantially passes the fluid frequency component, wherein the first filter outputs the fluid frequency component; the meter electronics filtering the frequency response with a second filter that substantially rejects the fluid frequency component and substantially passes the gas frequency component, wherein the second filter outputs the gas frequency component; the meter electronics determining an overall density from the frequency response; the meter electronics determining a gas density from the gas frequency component; the meter electronics determining the void fraction of gas from the frequency response and one or more of the gas frequency component and the fluid frequency component; and the meter electronics determining the mass fraction from the void fraction of gas multiplied by a ratio of the gas density divided by the overall density. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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Specification