Correcting for two-phase flow in a digital flowmeter

Henry P Manus; La Fuente Maria Jesus De

Correcting for two-phase flow in a digital flowmeter

Henry P Manus (Inventor)
, La Fuente Maria Jesus De (Inventor)

University of Oxford

Research output: Patent

Abstract

PROBLEM TO BE SOLVED: To provide a Coriolis-type mass flowmeter capable of performing accurate measurement regardless of a change of a flow state of a fluid. ;SOLUTION: A controller includes: a generation means generating a raw mass flow rate measurement value from a sensor signal; a decision means deciding whether a state inside a conduit of the fluid is a single-phase flow state or a two-phase flow state; a first process execution means executing a first process for processing the raw mass flow rate measurement value to generate a first mass flow rate measurement value during the single-phase flow state when the decision means decides that it is the single-phase flow state; and a second process execution means executing a second process for generating a second mass flow rate measurement value during the two-phase flow state when the decision means decides that it is the two-phase flow state. The second process execution means includes: an error correction factor generation means generating an error correction factor on the basis of the raw mass flow rate measurement value; and a correction means correcting the raw mass flow rate measurement value by arithmetic processing by use of the error correction factor. ;COPYRIGHT: (C)2008,JPO&INPIT

Original language	English
Patent number	JP2008102155A
IPC	G01F 1/74,G01F 1/84
Priority date	23/03/00
Filing date	5/12/07
Publication status	Published - 1 May 2008
Externally published	Yes

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Correcting for two-phase flow in a digital flowmeter
Henry, M. (Inventor) & Jesus De La Fuente, M. (Inventor), 2 Jun 2015, IPC No. G01F 1/84, G01F 1/74, G01F 15/02, Patent No. US9046401B2, 23 Sept 2013, Priority date 8 Jul 1998, Priority No. US11173998A
Research output: Patent
Correcting for two-phase flow in a digital flowmeter
Henry, M. (Inventor) & Jesus De La Fuente, M. (Inventor), 5 May 2015, IPC No. G01F 1/84, G01F 1/74, G01F 15/02, Patent No. US9021892B2, 13 Jun 2012, Priority date 22 Nov 1999, Priority No. US16674299P
Research output: Patent
Correcting for Two-Phase Flow In A Digital Flowmeter
Henry, M. (Inventor) & De LaFuente, M. J. (Inventor), 3 Apr 2014, IPC No. G01F 1/84, Patent No. US2014090484A1, 23 Sept 2013, Priority date 26 Nov 1997, Priority No. US6655497P
Research output: Patent

Open Access

Cite this

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title = "Correcting for two-phase flow in a digital flowmeter",

abstract = "PROBLEM TO BE SOLVED: To provide a Coriolis-type mass flowmeter capable of performing accurate measurement regardless of a change of a flow state of a fluid. ;SOLUTION: A controller includes: a generation means generating a raw mass flow rate measurement value from a sensor signal; a decision means deciding whether a state inside a conduit of the fluid is a single-phase flow state or a two-phase flow state; a first process execution means executing a first process for processing the raw mass flow rate measurement value to generate a first mass flow rate measurement value during the single-phase flow state when the decision means decides that it is the single-phase flow state; and a second process execution means executing a second process for generating a second mass flow rate measurement value during the two-phase flow state when the decision means decides that it is the two-phase flow state. The second process execution means includes: an error correction factor generation means generating an error correction factor on the basis of the raw mass flow rate measurement value; and a correction means correcting the raw mass flow rate measurement value by arithmetic processing by use of the error correction factor. ;COPYRIGHT: (C)2008,JPO\&INPIT",

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AB - PROBLEM TO BE SOLVED: To provide a Coriolis-type mass flowmeter capable of performing accurate measurement regardless of a change of a flow state of a fluid. ;SOLUTION: A controller includes: a generation means generating a raw mass flow rate measurement value from a sensor signal; a decision means deciding whether a state inside a conduit of the fluid is a single-phase flow state or a two-phase flow state; a first process execution means executing a first process for processing the raw mass flow rate measurement value to generate a first mass flow rate measurement value during the single-phase flow state when the decision means decides that it is the single-phase flow state; and a second process execution means executing a second process for generating a second mass flow rate measurement value during the two-phase flow state when the decision means decides that it is the two-phase flow state. The second process execution means includes: an error correction factor generation means generating an error correction factor on the basis of the raw mass flow rate measurement value; and a correction means correcting the raw mass flow rate measurement value by arithmetic processing by use of the error correction factor. ;COPYRIGHT: (C)2008,JPO&INPIT

M3 - Patent

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Correcting for two-phase flow in a digital flowmeter

Abstract

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