ES2086753T3 - Una tecnica para la determinacion del valor cero mecanico para un medidor de coriolis. - Google Patents

Una tecnica para la determinacion del valor cero mecanico para un medidor de coriolis.

Info

Publication number
ES2086753T3
ES2086753T3 ES92914880T ES92914880T ES2086753T3 ES 2086753 T3 ES2086753 T3 ES 2086753T3 ES 92914880 T ES92914880 T ES 92914880T ES 92914880 T ES92914880 T ES 92914880T ES 2086753 T3 ES2086753 T3 ES 2086753T3
Authority
ES
Spain
Prior art keywords
meter
zero value
mechanical zero
determination
technique
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.)
Expired - Lifetime
Application number
ES92914880T
Other languages
English (en)
Inventor
Robert Bruck
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.)
Micro Motion Inc
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
Application granted granted Critical
Publication of ES2086753T3 publication Critical patent/ES2086753T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G01F15/022—Compensating or correcting for variations in pressure, density or temperature using electrical means
    • G01F15/024—Compensating or correcting for variations in pressure, density or temperature using electrical means involving digital counting
    • 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
    • G01F1/8472—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having curved measuring conduits, i.e. whereby the measuring conduits' curved center line lies within a plane
    • G01F1/8477—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having curved measuring conduits, i.e. whereby the measuring conduits' curved center line lies within a plane with multiple measuring conduits

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Measuring Volume Flow (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Details Of Flowmeters (AREA)

Abstract

APARATO Y METODOS CONSIGUIENTES, PARA INCLUIR EN UN CONTADOR CORIOLIS (5), QUE ELIMINA SUSTANCIALMENTE LOS ERRORES DE MEDIDA INDUCIDOS POR LA TEMPERATURA, QUE PODRIAN DE LO CONTRARIO ESTAR PRODUCIDOS POR LAS DIFERENCIAS DE FUNCIONAMIENTO EXISTENTES ENTRE LOS CANALES DE ENTRADAS SEPARADAS CONTENIDOS EN EL CONTADOR. ESPECIFICAMENTE EN EL CONTADOR SE EMPLEAN DOS PARES DE CANALES DE ENTRADA (44,54,64). ACTUANDO, EL CONTADOR MIDE REPETITIVAMENTE EL RETRASO DE LA FASE INTERNA DE CADA UNO DE ESTOS PARES Y DESPUES RESTA EL RETRASO ASOCIADO EN CADA PAR DEL DATO DE MEDIDA BASADO EN EL FLUJO ACTUAL, OBTENIDO SUBSECUENTEMENTE DE ALLI. MIENTRAS UN PAR DE CANALES ESTA MIDIENDO EL FLUJO ACTUAL, EL OTRO PAR DE CANALES ESTA MIDIENDO SU RETARDO DE FASE INTERNA, ESTANDO LOS CANALES INTERCAMBIANDO CONTINUAMENTE ESTAS FUNCIONES. A CAUSA DE QUE AMBOS PARES DE CANALES SE CAMBIAN EN UNA PROPORCION SUFICIENTEMENTE RAPIDA, EL VALOR DEL RETARDO DE LA CORRIENTE DE FASE INTERNA PARA CADA UNO DE LOS PARES, REFLEJA CON PRECISION CUALQUIER CAMBIO INDUCIDO POR TEMPERATURA QUE OCURRA ENTONCES EN EL FUNCIONAMIENTO DE ESE PAR, ELIMINANDO SUSTANCIALMENTE POR ELLO TODOS LOS COMPONENTES DE ERROR INDUCIDOS POR LA TEMPERATURA DE LAS MEDICIONES DE FLUJO OBTENIDAS SUCESIVAMENTE DE ALLI. ADEMAS, EL CONTADOR MIDE LA TEMPERATURA DEL TUBO DE FLUIDO DE MANERA QUE ELIMINA DE EL LOS ERRORES INDUCIDOS POR LA TEMPERATURAS. ADEMAS EL CONTADOR TAMBIEN MIDE Y ACTUALIZA SU VALOR MECANICO CERO EMPLEANDO SOLO MEDIDAS DE INCREMENTO DE T DE FLUJO CERO QUE TIENEN UN CONTENIDO SUFICIENTEMENTE BAJO DE PERTURBACIONES; ESTE VALOR DE CERO MECANICO SE RESTA POSTERIORMENTE DEL DATO DE MEDIDA BASADO EN EL FLUJO, PARA ELIMINAR ERRORES DEL MISMO QUE EN CASO CONTRARIO SE DARIAN.
ES92914880T 1991-07-11 1992-07-02 Una tecnica para la determinacion del valor cero mecanico para un medidor de coriolis. Expired - Lifetime ES2086753T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/728,547 US5228327A (en) 1991-07-11 1991-07-11 Technique for determining a mechanical zero value for a coriolis meter

Publications (1)

Publication Number Publication Date
ES2086753T3 true ES2086753T3 (es) 1996-07-01

Family

ID=24927287

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92914880T Expired - Lifetime ES2086753T3 (es) 1991-07-11 1992-07-02 Una tecnica para la determinacion del valor cero mecanico para un medidor de coriolis.

Country Status (19)

Country Link
US (1) US5228327A (es)
EP (1) EP0593604B1 (es)
JP (1) JP2583011B2 (es)
KR (1) KR0144126B1 (es)
CN (1) CN1053498C (es)
AT (1) ATE135460T1 (es)
AU (1) AU661022B2 (es)
BR (1) BR9206116A (es)
CA (1) CA2111698C (es)
CZ (1) CZ4494A3 (es)
DE (1) DE69209076T2 (es)
ES (1) ES2086753T3 (es)
HU (1) HU216207B (es)
MX (1) MX9204043A (es)
MY (1) MY110208A (es)
PL (1) PL169832B1 (es)
RU (1) RU2119149C1 (es)
SK (1) SK2894A3 (es)
WO (1) WO1993001472A1 (es)

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ATE401555T1 (de) 2004-06-14 2008-08-15 Micro Motion Inc Coriolis-strömungsmesser und verfahren zur bestimmung einer signaldifferenz in verkabelung und erster und zweiter pickoff-sensor
US7337084B2 (en) 2005-06-21 2008-02-26 Invensys Systems, Inc. Switch-activated zero checking feature for a Coriolis flowmeter
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Also Published As

Publication number Publication date
MY110208A (en) 1998-02-28
CN1053498C (zh) 2000-06-14
JP2583011B2 (ja) 1997-02-19
MX9204043A (es) 1993-02-01
KR0144126B1 (en) 1998-07-15
CN1068420A (zh) 1993-01-27
HUT65951A (en) 1994-08-29
HU216207B (hu) 1999-05-28
CZ4494A3 (en) 1994-04-13
PL169832B1 (pl) 1996-09-30
CA2111698A1 (en) 1993-01-21
BR9206116A (pt) 1994-10-11
WO1993001472A1 (en) 1993-01-21
US5228327A (en) 1993-07-20
KR940701534A (ko) 1994-05-28
EP0593604B1 (en) 1996-03-13
RU2119149C1 (ru) 1998-09-20
JPH06508929A (ja) 1994-10-06
CA2111698C (en) 1997-06-10
AU2308392A (en) 1993-02-11
HU9303264D0 (en) 1994-01-28
AU661022B2 (en) 1995-07-13
EP0593604A1 (en) 1994-04-27
DE69209076T2 (de) 1996-10-17
SK2894A3 (en) 1994-08-10
DE69209076D1 (de) 1996-04-18
ATE135460T1 (de) 1996-03-15

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