WO2006056560A3 - Verfahren zur bestimmung des massedurchflusses eines coriolis-massedurchflussmessers - Google Patents

Verfahren zur bestimmung des massedurchflusses eines coriolis-massedurchflussmessers Download PDF

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Publication number
WO2006056560A3
WO2006056560A3 PCT/EP2005/056104 EP2005056104W WO2006056560A3 WO 2006056560 A3 WO2006056560 A3 WO 2006056560A3 EP 2005056104 W EP2005056104 W EP 2005056104W WO 2006056560 A3 WO2006056560 A3 WO 2006056560A3
Authority
WO
WIPO (PCT)
Prior art keywords
sensor signals
mass flow
sum signal
determining
signal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2005/056104
Other languages
English (en)
French (fr)
Other versions
WO2006056560A2 (de
Inventor
Christian Matt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Endress and Hauser Flowtec AG
Original Assignee
Endress and Hauser Flowtec AG
Flowtec AG
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 Endress and Hauser Flowtec AG, Flowtec AG filed Critical Endress and Hauser Flowtec AG
Priority to EP05811169A priority Critical patent/EP1819988A2/de
Priority to US11/791,281 priority patent/US7854176B2/en
Publication of WO2006056560A2 publication Critical patent/WO2006056560A2/de
Publication of WO2006056560A3 publication Critical patent/WO2006056560A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G01F1/845—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)
  • Measuring Volume Flow (AREA)

Abstract

Bei einem Verfahren zur Bestimmung des Massedurchflusses eines Coriolis-Massedurchflussmessers wird eine Schwingung eines Messrohrs mit der Frequenz f erzeugt und die resultierende Schwingungsbewegung an zwei unterschiedlichen Messstellen mit zwei Schwingungssensoren erfasst. Die analogen Sensorsignale X17, X18 der beiden Schwingungssensoren werden in digitale Sensorsignale S1 und S2 umgewandelt und in einem digitalen Signalprozessor DSP weiterverarbeitet. Im Signalprozessor DSP wird aus den beiden Sensorsignalen S1 und S2 das Summensignal Σ und das Differenzsignal Δ gebildet. Anschließend erfolgt eine Drehung des Summensignals um 90º. In einem weiteren Verfahrensschritt wird das verschobene Summensignal mit dem Differenzsignal Δ multipliziert. Nach der Bestimmung der Amplitude des Summensignals Σ wird der Massedurchfluss gemäß der Formel m ~¦Im(Δ)¦/ ( ¦Σ¦ f ) bestimmt. Für das Verfahren ist es nicht notwendig, dass die beiden Sensorsignale S1, S2 gleiche Amplituden besitzen. Eine Regelung auf gleiche Amplitude der analogen Signale X17, X18 kann deshalb entfallen.
PCT/EP2005/056104 2004-11-22 2005-11-21 Verfahren zur bestimmung des massedurchflusses eines coriolis-massedurchflussmessers Ceased WO2006056560A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05811169A EP1819988A2 (de) 2004-11-22 2005-11-21 Verfahren zur bestimmung des massedurchflusses eines coriolis-massedurchflussmessers
US11/791,281 US7854176B2 (en) 2004-11-22 2005-11-21 Method for determining the mass flow through a coriolis mass flowmeter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004056370A DE102004056370A1 (de) 2004-11-22 2004-11-22 Mess- und Betriebsschaltung für Coriolismassedurchflussaufnehmer
DE102004056370.5 2004-11-22

Publications (2)

Publication Number Publication Date
WO2006056560A2 WO2006056560A2 (de) 2006-06-01
WO2006056560A3 true WO2006056560A3 (de) 2006-12-21

Family

ID=36313837

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/056104 Ceased WO2006056560A2 (de) 2004-11-22 2005-11-21 Verfahren zur bestimmung des massedurchflusses eines coriolis-massedurchflussmessers

Country Status (4)

Country Link
US (1) US7854176B2 (de)
EP (1) EP1819988A2 (de)
DE (1) DE102004056370A1 (de)
WO (1) WO2006056560A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7689372B2 (en) * 2006-12-13 2010-03-30 Abb Patent Gmbh Process for operating a measurement device of the vibration type
CN102393661B (zh) * 2011-09-21 2013-03-06 北京航空航天大学 一种科氏质量流量计数字闭环控制系统
DE102013021136B3 (de) * 2013-12-13 2014-12-18 Abb Technology Ag Verfahren zur Laufzeitermittlung der Signale in den Signalpfaden bei einem Coriolis Durchflussmesser
RU2721312C2 (ru) * 2016-02-26 2020-05-18 Майкро Моушн, Инк. Электронный измеритель для двух или более измерительных узлов
DE102023101930A1 (de) * 2022-12-02 2024-06-13 Endress+Hauser Flowtec Ag Verfahren zum Überprüfen und/oder (Wieder-)Inbetriebnehmen eines modularen Meßsystems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300301A1 (de) * 1987-07-22 1989-01-25 Exac Corporation Einrichtung und Verfahren zum Messen des Massendurchflusses eines Materials, das durch eine schwingende Rohrleitung strömt
EP1189037A1 (de) * 2000-09-13 2002-03-20 Endress + Hauser Flowtec AG Coriolisdurchflussmesser mit digitalem Steuerungssystem
WO2004102128A2 (de) * 2003-05-19 2004-11-25 Endress+Hauser Flowtec Ag Coriolis-durchflussmessgerät

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559833A (en) * 1982-09-30 1985-12-24 Smith Meter Inc. Meter for measuring mass flow rate
US4934196A (en) * 1989-06-02 1990-06-19 Micro Motion, Inc. Coriolis mass flow rate meter having a substantially increased noise immunity
US5734112A (en) * 1996-08-14 1998-03-31 Micro Motion, Inc. Method and apparatus for measuring pressure in a coriolis mass flowmeter
US5804741A (en) * 1996-11-08 1998-09-08 Schlumberger Industries, Inc. Digital phase locked loop signal processing for coriolis mass flow meter
US6073495A (en) * 1997-03-21 2000-06-13 Endress + Hauser Flowtec Ag Measuring and operating circuit of a coriolis-type mass flow meter
US6606573B2 (en) * 2001-08-29 2003-08-12 Micro Motion, Inc. Sensor apparatus, methods and computer program products employing vibrational shape control
US6666573B2 (en) 2001-10-18 2003-12-23 Frank Grassi Portable mixing/delivery apparatus for pre-blended granular mixtures

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300301A1 (de) * 1987-07-22 1989-01-25 Exac Corporation Einrichtung und Verfahren zum Messen des Massendurchflusses eines Materials, das durch eine schwingende Rohrleitung strömt
EP1189037A1 (de) * 2000-09-13 2002-03-20 Endress + Hauser Flowtec AG Coriolisdurchflussmesser mit digitalem Steuerungssystem
WO2004102128A2 (de) * 2003-05-19 2004-11-25 Endress+Hauser Flowtec Ag Coriolis-durchflussmessgerät

Also Published As

Publication number Publication date
US7854176B2 (en) 2010-12-21
EP1819988A2 (de) 2007-08-22
US20090211373A1 (en) 2009-08-27
DE102004056370A1 (de) 2006-05-24
WO2006056560A2 (de) 2006-06-01

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