AR025082A1 - Un caudalimetro de coriolis que tiene una barra de compensacion para mejorar la precision de un metodo de comando del caudalimetro de coriolis. - Google Patents

Un caudalimetro de coriolis que tiene una barra de compensacion para mejorar la precision de un metodo de comando del caudalimetro de coriolis.

Info

Publication number
AR025082A1
AR025082A1 ARP000104106A ARP000104106A AR025082A1 AR 025082 A1 AR025082 A1 AR 025082A1 AR P000104106 A ARP000104106 A AR P000104106A AR P000104106 A ARP000104106 A AR P000104106A AR 025082 A1 AR025082 A1 AR 025082A1
Authority
AR
Argentina
Prior art keywords
compensation bar
flow
flowmeter
coriolis
change
Prior art date
Application number
ARP000104106A
Other languages
English (en)
Original Assignee
Micro Motion Inc
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 Micro Motion Inc filed Critical Micro Motion Inc
Publication of AR025082A1 publication Critical patent/AR025082A1/es

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
    • G01F1/845—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

Un caudalímetro de Coriolis de un unico tubo que tiene un tubo de flujo (901) y una barra de compensacion (902) que se hace vibrar en oposicion de fase. Elflujo de material a través del tubo de flujo vibrante induce deflexiones de Coriolis en el tubode flujo que, por medio de barras de anclaje (913), inducedeflexion similar a Coriolis en fase en la barra de compensacion. Un resonador (908) de la barra de compensacion acoplado a la barra de compensacion esexcitado para que vibre en un modo rotacional fuera de fase respecto a la barra de compensacion. La vibracion del resonador de la barra de compensacion aumentala precision de los datos de salida del caudalímetro: 1)aumentando la sensibilidad al caudal del medidor aplicando momento torsor ala barra de compensacionpara reducir sus deflexiones similares a Coriolis en fase; 2)aplicando momento torsor al tubo de flujo por medio de la barra de compensacion para reducir latrepitacion del caudalímetro; y 3)haciendo que el caudalímetro tengaun factor de calibracion plano respecto a cambios en la densidad del material por laprovision de: un aparato (913) que cambia la relacion de amplitud vibracional del tubo de flujo y la barra de compensacion en respuesta a dicha deteccion de uncambioen la densidad del material; aparatos (909, 913) que cambian la sensibilidad al caudal de material del caudalímetro de Coriolis en una primera direccionen respuesta a un cambio en la relacion de amplitud vibracional; aparato (909) que altera la amplitud vibracional del resonador de la barra de compensacionpara cambiar la sensibilidad al caudal de material en una segunda direccion en respuesta a un cambio en la frecuencia resonante; siendo los cambios en lasesibilidad de caudal en la primera direccion y en la segunda direccion eficaces para lograr un factor de calibracion de caudal del caudalímetro deCoriolis.
ARP000104106A 1999-08-13 2000-08-09 Un caudalimetro de coriolis que tiene una barra de compensacion para mejorar la precision de un metodo de comando del caudalimetro de coriolis. AR025082A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/373,865 US6363794B1 (en) 1999-08-13 1999-08-13 Method and apparatus for Coriolis flowmeter having an accuracy enhancing balance bar

Publications (1)

Publication Number Publication Date
AR025082A1 true AR025082A1 (es) 2002-11-06

Family

ID=23474213

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP000104106A AR025082A1 (es) 1999-08-13 2000-08-09 Un caudalimetro de coriolis que tiene una barra de compensacion para mejorar la precision de un metodo de comando del caudalimetro de coriolis.

Country Status (9)

Country Link
US (1) US6363794B1 (es)
EP (1) EP1224439B1 (es)
JP (1) JP4015852B2 (es)
CN (1) CN1173156C (es)
AR (1) AR025082A1 (es)
AU (1) AU6229300A (es)
DE (1) DE60017439T2 (es)
HK (1) HK1047471B (es)
WO (1) WO2001013072A2 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6776053B2 (en) * 2001-11-26 2004-08-17 Emerson Electric, Inc. Flowmeter for the precision measurement of an ultra-pure material flow
WO2003095949A1 (de) * 2002-05-08 2003-11-20 Endress + Hauser Flowtec Ag Torsionschwingungs-tilger für einen messwandler vom vibrationstyp
DE10351311B3 (de) * 2003-10-31 2005-06-30 Abb Patent Gmbh Coriolis-Massendurchflussmessgerät
DE602004032393D1 (de) * 2004-07-01 2011-06-01 Micro Motion Inc Coriolis Durchflussmessgerät mit aufgeteilten Auswucht-Gewichten zur Beseitigung des Dichteeffekts auf gemessene Durchflüsse
CN101970338B (zh) * 2008-02-11 2013-03-27 集成感应系统公司 微流体装置及操作方法
NL1036341C2 (nl) * 2008-12-19 2010-06-22 Berkin Bv Coriolis flowsensor met verend opgehangen balansmassa.
NL2016092B1 (en) * 2016-01-14 2017-07-24 Berkin Bv Coriolis flowsensor.
RU2742973C1 (ru) * 2017-06-14 2021-02-12 Майкро Моушн, Инк. Частотные разнесения для предотвращения помех, вызванных сигналами интермодуляционного искажения

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4121732A1 (de) * 1991-07-01 1993-01-07 Rota Yokogawa Gmbh & Co Kg Messgeraet zur erfassung eines massendurchflusses nach dem coriolis-prinzip
US5691485A (en) 1994-06-06 1997-11-25 Oval Corporation Coaxial double tube type Coriolis flowmeter
US5796012A (en) 1996-09-19 1998-08-18 Oval Corporation Error correcting Coriolis flowmeter
US5850039A (en) 1997-02-27 1998-12-15 Micro Motion Coriolis flowmeter having axially compliant case ends
DE19825775A1 (de) 1997-10-07 1999-05-12 Krohne Ag Massendurchflußmeßgerät
US5987999A (en) * 1998-07-01 1999-11-23 Micro Motion, Inc. Sensitivity enhancing balance bar

Also Published As

Publication number Publication date
HK1047471B (zh) 2005-06-10
HK1047471A1 (en) 2003-02-21
WO2001013072A2 (en) 2001-02-22
US6363794B1 (en) 2002-04-02
AU6229300A (en) 2001-03-13
CN1173156C (zh) 2004-10-27
JP4015852B2 (ja) 2007-11-28
DE60017439D1 (de) 2005-02-17
WO2001013072A3 (en) 2002-05-10
EP1224439B1 (en) 2005-01-12
CN1370270A (zh) 2002-09-18
EP1224439A2 (en) 2002-07-24
DE60017439T2 (de) 2005-06-09
JP2003507699A (ja) 2003-02-25

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