摘要:
Meter electronics (20) for determining a void fraction of gas in a flow material flowing through a flow meter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a frequency response of the flow material and a processing system (203) in communication with the interface (201). The processing system (203) is 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, and determine the void fraction of gas from the frequency response and one or more of the gas frequency component and the fluid frequency component.
摘要:
Meter electronics (20) and methods for detecting a flow anomaly in a flow material flowing through a flow meter (5) are provided. The meter electronics (20) includes an interface (201) for receiving a vibrational response of the flow material, with the vibrational response including at least a first sensor signal and a second sensor signal, and a processing system (203) in communication with the interface (201). The processing system (203) is configured to receive the vibrational response from the interface (201), generate a ninety degree phase shift from the first sensor signal and generate at least one flow characteristic using at least the first sensor signal and the ninety degree phase shift, compare the at least one flow characteristic to at least one anomaly profile, detect a shift in the vibrational response if the at least one flow characteristic falls within the anomaly profile, and indicate an anomaly condition as a result of the detecting.
摘要:
Meter electronics (20) for processing sensor signals for a multi-phase flow material in a flowmeter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving first and second sensor signals (210 and 211) for the multi-phase flow material and a processing system (203). The processing system (203) is configured to receive the first sensor signal (210) and the second sensor signal (211), generate a first ninety degree phase shift (213) from the first sensor signal (210) and generate a second ninety degree phase shift (214) from the second sensor signal (211), compute a frequency (221) using one of the first ninety degree phase shift (213) or the second ninety degree phase shift (214), compute a phase difference (220) using one or more of the first ninety degree phase shift (213) and the second ninety degree phase shift (214), and compute one or more of a mass flow rate (223), a density (224), or a volume flow rate (225) for the multi-phase flow material.
摘要:
Meter electronics (20) for processing sensor signals for a multi-phase flow material in a flowmeter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving first and second sensor signals (210 and 211) for the multi-phase flow material and a processing system (203). The processing system (203) is configured to receive the first sensor signal (210) and the second sensor signal (211), generate a first ninety degree phase shift (213) from the first sensor signal (210) and generate a second ninety degree phase shift (214) from the second sensor signal (211), compute a frequency (221) using one of the first ninety degree phase shift (213) or the second ninety degree phase shift (214), compute a phase difference (220) using one or more of the first ninety degree phase shift (213) and the second ninety degree phase shift (214), and compute one or more of a mass flow rate (223), a density (224), or a volume flow rate (225) for the multi-phase flow material.
摘要:
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.
摘要:
Meter electronics (20) for processing sensor signals in a flow meter and for computing mass flow rate, density or volume flow rate includes an interface (201) for receiving a first sensor signal and a second sensor signal and a processing system (203) in communication with the interface (201) and configured to generate a ninety degree phase shift from the first sensor signal with a Hilbert transform and compute a phase difference from the ninety degree phase shift, the first sensor signal and the second sensor signal. A frequency is computed from the first sensor signal and the ninety degree phase shift. A second ninety degree phase shift can be generated from the second sensor signal.
摘要:
Meter electronics (20) for determining a void fraction of gas in a flow material flowing through a flow meter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a frequency response of the flow material and a processing system (203) in communication with the interface (201). The processing system (203) is 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, and determine the void fraction of gas from the frequency response and one or more of the gas frequency component and the fluid frequency component.
摘要:
Meter electronics (20) and methods for detecting a flow anomaly in a flow material flowing through a flow meter (5) are provided. The meter electronics (20) includes an interface (201) for receiving a vibrational response of the flow material, with the vibrational response including at least a first sensor signal and a second sensor signal, and a processing system (203) in communication with the interface (201). The processing system (203) is configured to receive the vibrational response from the interface (201), generate a ninety degree phase shift from the first sensor signal and generate at least one flow characteristic using at least the first sensor signal and the ninety degree phase shift, compare the at least one flow characteristic to at least one anomaly profile, detect a shift in the vibrational response if the at least one flow characteristic falls within the anomaly profile, and indicate an anomaly condition as a result of the detecting.
摘要:
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.
摘要:
A vibratory flow meter (5) for measuring flow characteristics of a three phase flow is provided according to the invention. The vibratory flow meter (5) includes a meter assembly (10) including pickoff sensors (105, 105′) and meter electronics (20) coupled to the pickoff sensors (105, 105′). The meter electronics (20) is configured to receive a vibrational response from the pickoff sensors (105, 105), generate a first density measurement of the three phase flow using a first frequency component of the vibrational response, and generate at least a second density measurement of the three phase flow using at least a second frequency component of the vibrational response. The at least second frequency component is a different frequency than the first frequency component. The meter electronics (20) is further configured to determine one or more flow characteristics from the first density measurement and the at least second density measurement.