Correcting for two-phase flow in a digital flowmeter
First Claim
1. A flowmeter comprising:
- a vibratable conduit;
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 being operable to;
generate a raw mass-flow measurement from the sensor signal;
detect a single-phase flow condition and process the raw mass-flow measurement using a first process during the single-phase flow condition to generate a first mass-flow measurement; and
detect a two-phase flow condition and correct the raw mass-flow measurement using a second process during the two-phase flow condition to generate a second mass-flow measurement.
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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.
60 Citations
1 Claim
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1. A flowmeter comprising:
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a vibratable conduit;
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 being operable to;
generate a raw mass-flow measurement from the sensor signal;
detect a single-phase flow condition and process the raw mass-flow measurement using a first process during the single-phase flow condition to generate a first mass-flow measurement; and
detect a two-phase flow condition and correct the raw mass-flow measurement using a second process during the two-phase flow condition to generate a second mass-flow measurement.
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Specification