WO2004102128A3 - Coriolis-durchflussmessgerät - Google Patents

Coriolis-durchflussmessgerät Download PDF

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Publication number
WO2004102128A3
WO2004102128A3 PCT/EP2004/005314 EP2004005314W WO2004102128A3 WO 2004102128 A3 WO2004102128 A3 WO 2004102128A3 EP 2004005314 W EP2004005314 W EP 2004005314W WO 2004102128 A3 WO2004102128 A3 WO 2004102128A3
Authority
WO
WIPO (PCT)
Prior art keywords
measuring tube
coriolis flowmeter
vicinity
emitting
determines
Prior art date
Application number
PCT/EP2004/005314
Other languages
English (en)
French (fr)
Other versions
WO2004102128A2 (de
Inventor
Matthias Roost
Original Assignee
Flowtec Ag
Matthias Roost
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flowtec Ag, Matthias Roost filed Critical Flowtec Ag
Priority to EP04739233A priority Critical patent/EP1625363A2/de
Priority to US10/557,847 priority patent/US20080046201A1/en
Publication of WO2004102128A2 publication Critical patent/WO2004102128A2/de
Publication of WO2004102128A3 publication Critical patent/WO2004102128A3/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8413—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8431—Coriolis or gyroscopic mass flowmeters constructional details electronic circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8436—Coriolis or gyroscopic mass flowmeters constructional details signal processing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
    • G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
    • G01F1/849—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having straight measuring conduits

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Die Erfindung bezieht sich auf ein Coriolis-Durchflußmeßgerät (1) mit zumindest einem Erregersystem (4), das zumindest ein von einem Medium (3) durchströmtes Meßrohr (2) in Schwingungen versetzt, mit einem ersten Meßwertaufnehmer (5), der im Bereich des Zulaufs des Meßrohres (2) vorgesehen ist und der ein Eingangssignal (Ue) ausgibt, mit einem zweiten Meßwertaufnehmer (6), der im Bereich des Auslaufs des Meßrohres (2) angeordnet ist und der ein Ausgangssignal (Ua) ausgibt, und mit einer Regel-/Auswerteeinheit (7), die eine Phasenverschiebung bzw. eine Differenz der Phasenwinkel zwischen dem Eingangssignal (Ue) und dem Ausgangssignal (Ua) über einen CORDIC-Algorithmus bestimmt und die anhand der errechneten Phasenverschiebung bzw. anhand der errechneten Phasenwinkeldifferenz den Massedurchfluß, die Dichte und/oder die Viskosität des in dem Meßrohr (2) strömenden Mediums (3) bestimmt.
PCT/EP2004/005314 2003-05-19 2004-05-18 Coriolis-durchflussmessgerät WO2004102128A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04739233A EP1625363A2 (de) 2003-05-19 2004-05-18 Coriolis-durchflussmessgerät
US10/557,847 US20080046201A1 (en) 2003-05-19 2004-05-18 Coriolis Flowmeter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10322851A DE10322851A1 (de) 2003-05-19 2003-05-19 Coriolis-Durchflußmeßgerät
DE10322851.9 2003-05-19

Publications (2)

Publication Number Publication Date
WO2004102128A2 WO2004102128A2 (de) 2004-11-25
WO2004102128A3 true WO2004102128A3 (de) 2005-03-31

Family

ID=33441057

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/005314 WO2004102128A2 (de) 2003-05-19 2004-05-18 Coriolis-durchflussmessgerät

Country Status (4)

Country Link
US (1) US20080046201A1 (de)
EP (1) EP1625363A2 (de)
DE (1) DE10322851A1 (de)
WO (1) WO2004102128A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004055553A1 (de) * 2004-11-17 2006-05-18 Endress + Hauser Flowtec Ag Mess- und Betriebsschaltung für einen Coriolis-Massedurchflussmesser mit drei Messkanälen
DE102004056370A1 (de) 2004-11-22 2006-05-24 Endress + Hauser Flowtec Ag Mess- und Betriebsschaltung für Coriolismassedurchflussaufnehmer
JP4469008B1 (ja) * 2008-11-18 2010-05-26 株式会社オーバル コリオリ流量計
DE102022131692A1 (de) 2022-11-30 2024-06-06 Endress+Hauser Flowtec Ag Coriolis-Durchflussmessgerät

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6505131B1 (en) * 1999-06-28 2003-01-07 Micro Motion, Inc. Multi-rate digital signal processor for signals from pick-offs on a vibrating conduit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282552B1 (de) * 1986-09-18 1990-12-12 Krohne AG Massendurchflussmessgerät für strömende medien mit einrichtungen zur ermittlung der corioliskraft
DE69210244T2 (de) * 1991-08-01 1996-10-31 Micro Motion Inc., Boulder, Col. Massendurchflussmesser nach dem Coriolsprinzip
EP0698783A1 (de) * 1994-08-16 1996-02-28 Endress + Hauser Flowtec AG Auswerte-Elektronik eines Coriolis-Massedurchflussaufnehmers
DE19719587A1 (de) * 1997-05-09 1998-11-19 Bailey Fischer & Porter Gmbh Verfahren und Einrichtung zur Erkennung und Kompensation von Nullpunkteinflüssen auf Coriolis-Massedurchflußmesser
US6199022B1 (en) * 1997-07-11 2001-03-06 Micro Motion, Inc. Drive circuit modal filter for a vibrating tube flowmeter
US6272438B1 (en) * 1998-08-05 2001-08-07 Micro Motion, Inc. Vibrating conduit parameter sensors, methods and computer program products for generating residual-flexibility-compensated mass flow estimates
US6711958B2 (en) * 2000-05-12 2004-03-30 Endress + Hauser Flowtec Ag Coriolis mass flow rate/density/viscoy sensor with two bent measuring tubes
WO2002013370A2 (en) * 2000-08-09 2002-02-14 Skybitz, Inc. Frequency translator using a cordic phase rotator
EP1189037A1 (de) * 2000-09-13 2002-03-20 Endress + Hauser Flowtec AG Coriolisdurchflussmesser mit digitalem Steuerungssystem

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6505131B1 (en) * 1999-06-28 2003-01-07 Micro Motion, Inc. Multi-rate digital signal processor for signals from pick-offs on a vibrating conduit

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ANDRAKA R ED - ASSOCIATION FOR COMPUTING MACHINERY: "SURVEY OF CORDIC ALGORITHMS FOR FPGA BASED COMPUTERS", ACM/SIGDA INTERNATIONAL SYMPOSIUM ON FIELD PROGRAMMABLE GATE ARRAYS. FPGA '98. MONTEREY, CA, FEB. 22 - 24, 1998, NEW YORK, NY : ACM, US, vol. 6TH CONF, 22 February 1998 (1998-02-22), pages 191 - 200, XP000883995, ISBN: 0-89791-978-5 *
DHAR A S ET AL: "Doppler ultrasonograph with CORDIC based spectrum analyzer for blood flow velocity estimation", PROC 1 1995 REG CONF IEEE ENG MED BIOL SOC 14 CONF BIOMED ENG SOC INDIA 1995 IEEE, 1995, pages 2.107 - 2.108, XP002315646 *
VOLDER J E: "THE CORDIC TRIGONOMETRIC COMPUTING TECHNIQUE", IRE TRANSACTIONS ON ELECTRONIC COMPUTERS, IEEE INC. NEW YORK, US, vol. EC-8, no. 3, 1 September 1959 (1959-09-01), pages 330 - 334, XP000565555 *

Also Published As

Publication number Publication date
WO2004102128A2 (de) 2004-11-25
US20080046201A1 (en) 2008-02-21
EP1625363A2 (de) 2006-02-15
DE10322851A1 (de) 2004-12-16

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