WO2005057137A9 - Debitmetre massique de coriolis - Google Patents

Debitmetre massique de coriolis

Info

Publication number
WO2005057137A9
WO2005057137A9 PCT/EP2004/053323 EP2004053323W WO2005057137A9 WO 2005057137 A9 WO2005057137 A9 WO 2005057137A9 EP 2004053323 W EP2004053323 W EP 2004053323W WO 2005057137 A9 WO2005057137 A9 WO 2005057137A9
Authority
WO
WIPO (PCT)
Prior art keywords
mass flow
value
intermediate value
measuring tube
measured
Prior art date
Application number
PCT/EP2004/053323
Other languages
German (de)
English (en)
Other versions
WO2005057137A2 (fr
WO2005057137A3 (fr
Inventor
Christian Matt
Alfred Wenger
Michael Fuchs
Wolfgang Drahm
Original Assignee
Flowtec Ag
Christian Matt
Alfred Wenger
Michael Fuchs
Wolfgang Drahm
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
Priority claimed from DE10358663.6A external-priority patent/DE10358663B4/de
Priority claimed from DE200410007889 external-priority patent/DE102004007889A1/de
Application filed by Flowtec Ag, Christian Matt, Alfred Wenger, Michael Fuchs, Wolfgang Drahm filed Critical Flowtec Ag
Priority to EP04804716A priority Critical patent/EP1692467A2/fr
Priority to CA2547699A priority patent/CA2547699C/fr
Publication of WO2005057137A2 publication Critical patent/WO2005057137A2/fr
Publication of WO2005057137A3 publication Critical patent/WO2005057137A3/fr
Publication of WO2005057137A9 publication Critical patent/WO2005057137A9/fr

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
    • 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
    • G01F1/8413—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
    • G01F1/8418—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 motion or vibration balancing means
    • 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
    • G01F1/8422—Coriolis or gyroscopic mass flowmeters constructional details exciters
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
    • G01N11/16—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring damping effect upon oscillatory body
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
    • G01N2009/006—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis vibrating tube, tuning fork

Definitions

  • the vibrations of the measuring tube are therefore detected by means of two vibration sensors of the aforementioned sensor arrangement which are spaced apart from one another along the measuring tube and converted into vibration measuring signals from whose mutual phase shift the mass flow is derived.
  • this comprises the following further steps:
  • this comprises the following further steps:
  • the measuring device electronics 50 comprise a corresponding driver circuit 53 which is controlled by a frequency control signal y FM representing the excitation frequency f exc to be set and by an amplitude control signal y AM representing the amplitude of the excitation current i exc to be set .
  • the driver circuit can be implemented, for example, by means of a voltage-controlled oscillator and a downstream voltage-to-current converter; Instead of an analog oscillator, for example, a numerically controlled digital oscillator can also be used to set the excitation current i exc .

Landscapes

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

Abstract

L'invention concerne un débitmètre massique/densimètre de Coriolis comprenant au moins un tuyau de mesure (11) qui est traversé par une substance à deux phases ou davantage pendant son fonctionnement. Un moyen de support (12) du débitmètre massique/densimètre de Coriolis est fixé sur une extrémité côté admission et une extrémité côté évacuation du tuyau de mesure (11), ce qui serre le tuyau de mesure de sorte qu'il puisse vibrer. Lors de son fonctionnement, le tuyau de mesure (11) vibre mécaniquement, en particulier il effectue des vibrations de flexion, sous l'action d'un système d'excitation (13). Le débitmètre massique/densimètre de Coriolis selon l'invention comprend également des moyens (141, 142) pour générer des signaux de mesure (xs1, xs2) qui représentent des vibrations côté admission et côté évacuation du tuyau de mesure (11). Un système électronique d'évaluation (2) génère une valeur intermédiaire (X'm), à partir desdits signaux de mesure (xs1, xs2), cette valeur intermédiaire représentant un débit massique déterminé de manière provisoire, et ledit système électronique d'évaluation génère en outre une deuxième valeur intermédiaire (X2), à partir desdits signaux de mesure (xs1, xs2), en particulier à partir d'une deuxième valeur de mesure (Xς) qui est également générée dans le système électronique d'évaluation (2) et qui représente une densité de la substance, ladite deuxième valeur intermédiaire représentant une mesure de la proportion d'une phase de la substance. La deuxième valeur intermédiaire (X2) est utilisée pour déterminer une valeur de correction (XK) pour la première valeur intermédiaire (X'm), cette valeur de correction (XK) étant sélectionnée parmi une pluralité de valeurs prédéterminées stockées dans une mémoire-table (56), au moyen de la deuxième valeur intermédiaire (X2). Le système électronique d'évaluation (2) génère en outre une valeur de mesure (Xm) qui représente un débit massique, au moyen de la première valeur intermédiaire (X'm) et de la valeur de correction (XK).
PCT/EP2004/053323 2003-12-12 2004-12-07 Debitmetre massique de coriolis WO2005057137A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04804716A EP1692467A2 (fr) 2003-12-12 2004-12-07 Debitmetre massique de coriolis
CA2547699A CA2547699C (fr) 2003-12-12 2004-12-07 Debitmetre massique a effet coriolis

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10358663.6 2003-12-12
DE10358663.6A DE10358663B4 (de) 2003-12-12 2003-12-12 Coriolis-Massedurchfluß-Meßgerät
DE102004007889.0 2004-02-17
DE200410007889 DE102004007889A1 (de) 2004-02-17 2004-02-17 Coriolis-Massedurchfluß-Meßgerät

Publications (3)

Publication Number Publication Date
WO2005057137A2 WO2005057137A2 (fr) 2005-06-23
WO2005057137A3 WO2005057137A3 (fr) 2005-09-29
WO2005057137A9 true WO2005057137A9 (fr) 2005-10-27

Family

ID=34680032

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2004/053323 WO2005057137A2 (fr) 2003-12-12 2004-12-07 Debitmetre massique de coriolis
PCT/EP2004/053322 WO2005057131A2 (fr) 2003-12-12 2004-12-07 Debitmetre massique de coriolis

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/053322 WO2005057131A2 (fr) 2003-12-12 2004-12-07 Debitmetre massique de coriolis

Country Status (4)

Country Link
EP (2) EP1692466A2 (fr)
CA (2) CA2547699C (fr)
RU (2) RU2348012C2 (fr)
WO (2) WO2005057137A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005046319A1 (de) 2005-09-27 2007-03-29 Endress + Hauser Flowtec Ag Verfahren zum Messen eines in einer Rohrleitung strömenden Mediums sowie Meßsystem dafür
DE102012011932B4 (de) * 2012-06-18 2016-09-15 Krohne Messtechnik Gmbh Verfahren zum Betreiben eines Resonanzmesssystems und diesbezügliches Resonanzmesssystem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524610A (en) * 1983-09-02 1985-06-25 National Metal And Refining Company, Ltd. In-line vibratory viscometer-densitometer
US5796012A (en) * 1996-09-19 1998-08-18 Oval Corporation Error correcting Coriolis flowmeter
DE59904728D1 (de) * 1998-12-11 2003-04-30 Flowtec Ag Coriolis-massedurchfluss-/dichtemesser

Also Published As

Publication number Publication date
WO2005057137A2 (fr) 2005-06-23
RU2006124841A (ru) 2008-01-20
WO2005057131A3 (fr) 2005-09-29
RU2339007C2 (ru) 2008-11-20
WO2005057131A9 (fr) 2005-08-25
RU2006124840A (ru) 2008-01-20
CA2547697C (fr) 2011-05-17
CA2547697A1 (fr) 2005-06-23
RU2348012C2 (ru) 2009-02-27
CA2547699C (fr) 2011-05-17
EP1692467A2 (fr) 2006-08-23
EP1692466A2 (fr) 2006-08-23
WO2005057137A3 (fr) 2005-09-29
CA2547699A1 (fr) 2005-06-23
WO2005057131A2 (fr) 2005-06-23

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