MX9700444A - Sistema de filtro de reduccion de ruido para un medidor de flujo coriolis. - Google Patents

Sistema de filtro de reduccion de ruido para un medidor de flujo coriolis.

Info

Publication number
MX9700444A
MX9700444A MX9700444A MX9700444A MX9700444A MX 9700444 A MX9700444 A MX 9700444A MX 9700444 A MX9700444 A MX 9700444A MX 9700444 A MX9700444 A MX 9700444A MX 9700444 A MX9700444 A MX 9700444A
Authority
MX
Mexico
Prior art keywords
channels
output signals
measured
phase delay
status
Prior art date
Application number
MX9700444A
Other languages
English (en)
Inventor
Paul Zoltan Kalotay
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 MX9700444A publication Critical patent/MX9700444A/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
    • 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
    • G01F1/8436—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)

Abstract

Un sistema de reduccion de ruido y método para medir la diferencia de fase entre las señales de salida de un medido de flujo Coriolis. Las señales de salida son aplicadas a la circuitería de procesamiento de señal, que tiene tres canales de medicion cada uno de los cuales incluye un filtro de polos multiples que tiene un desplazamiento de fase relativamente grande. Un par de canal está conmutado alternativamente en intervalos de tiempos sucesivos, entre un estado de calibracion y un estado activo. En el estado de calibracion, los dos canales están conectados durante un intervalo de tiempo a la misma señal de entrada y las señales de salida de los dos canales se miden para determinar el retardo de fase inherente entre los dos canales de calibracion. Entonces los dos canales son conmutados durante el siguiente intervalo de tiempo a un estado activo, en el cual están conectados por separado a las dos señales de salida del medidor de flujo. Las señales de salida de los canales se miden entonces y el retardo de fase medidor resultante es combinar algebraicamente con el retardo de fase medido durante el estado de calibracion para determinar el retardo de fase verdadero entre las dos señales recibidas del medidor de flujo Coriolis.
MX9700444A 1994-07-20 1995-07-18 Sistema de filtro de reduccion de ruido para un medidor de flujo coriolis. MX9700444A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/278,547 US5469748A (en) 1994-07-20 1994-07-20 Noise reduction filter system for a coriolis flowmeter
PCT/US1995/008851 WO1996002813A1 (en) 1994-07-20 1995-07-18 Noise reduction filter system for a coriolis flowmeter

Publications (1)

Publication Number Publication Date
MX9700444A true MX9700444A (es) 1997-04-30

Family

ID=23065416

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9700444A MX9700444A (es) 1994-07-20 1995-07-18 Sistema de filtro de reduccion de ruido para un medidor de flujo coriolis.

Country Status (11)

Country Link
US (1) US5469748A (es)
EP (1) EP0771409B1 (es)
JP (1) JP3112948B2 (es)
CN (1) CN1104630C (es)
AU (1) AU3128095A (es)
BR (1) BR9508314A (es)
DE (1) DE69504989T2 (es)
HK (1) HK1001870A1 (es)
MX (1) MX9700444A (es)
RU (1) RU2159410C2 (es)
WO (1) WO1996002813A1 (es)

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JP3058074B2 (ja) * 1995-08-29 2000-07-04 富士電機株式会社 振動型測定器
US5831178A (en) * 1995-08-29 1998-11-03 Fuji Electric Co., Ltd. Vibration type measuring instrument
DE19652002C2 (de) * 1995-12-15 2003-03-27 Flowtec Ag Schwingungs-Meßgerät
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US6199022B1 (en) * 1997-07-11 2001-03-06 Micro Motion, Inc. Drive circuit modal filter for a vibrating tube flowmeter
DE19732605C2 (de) * 1997-07-29 2001-12-06 Krohne Ag Basel Verfahren zur Bestimmung des Massendurchflusses nach dem Coriolis-Prinzip
US7124646B2 (en) * 1997-11-26 2006-10-24 Invensys Systems, Inc. Correcting for two-phase flow in a digital flowmeter
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US6311136B1 (en) * 1997-11-26 2001-10-30 Invensys Systems, Inc. Digital flowmeter
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US7059199B2 (en) 2003-02-10 2006-06-13 Invensys Systems, Inc. Multiphase Coriolis flowmeter
US7013740B2 (en) * 2003-05-05 2006-03-21 Invensys Systems, Inc. Two-phase steam measurement system
US7072775B2 (en) * 2003-06-26 2006-07-04 Invensys Systems, Inc. Viscosity-corrected flowmeter
US7065455B2 (en) * 2003-08-13 2006-06-20 Invensys Systems, Inc. Correcting frequency in flowtube measurements
DE10358663B4 (de) * 2003-12-12 2015-11-26 Endress + Hauser Flowtec Ag Coriolis-Massedurchfluß-Meßgerät
RU2358242C2 (ru) 2004-06-14 2009-06-10 Майкро Моушн, Инк. Кориолисовый расходомер и способ определения разности сигналов в кабельной линии и первом и втором датчиках
DE102004055553A1 (de) * 2004-11-17 2006-05-18 Endress + Hauser Flowtec Ag Mess- und Betriebsschaltung für einen Coriolis-Massedurchflussmesser mit drei Messkanälen
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DE102011100092B4 (de) * 2011-04-29 2013-04-18 Krohne Messtechnik Gmbh Verfahren zum Betreiben eines Resonanzmesssystems
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Also Published As

Publication number Publication date
DE69504989T2 (de) 1999-02-18
WO1996002813A1 (en) 1996-02-01
CN1104630C (zh) 2003-04-02
JP3112948B2 (ja) 2000-11-27
DE69504989D1 (de) 1998-10-29
HK1001870A1 (en) 1998-07-17
RU2159410C2 (ru) 2000-11-20
EP0771409B1 (en) 1998-09-23
CN1159224A (zh) 1997-09-10
AU3128095A (en) 1996-02-16
JPH10503017A (ja) 1998-03-17
BR9508314A (pt) 1999-06-01
US5469748A (en) 1995-11-28
EP0771409A1 (en) 1997-05-07

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