CA2443375A1 - Vibratory transducer - Google Patents

Vibratory transducer Download PDF

Info

Publication number
CA2443375A1
CA2443375A1 CA002443375A CA2443375A CA2443375A1 CA 2443375 A1 CA2443375 A1 CA 2443375A1 CA 002443375 A CA002443375 A CA 002443375A CA 2443375 A CA2443375 A CA 2443375A CA 2443375 A1 CA2443375 A1 CA 2443375A1
Authority
CA
Canada
Prior art keywords
flow tube
transducer
outlet
inlet
tube
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.)
Granted
Application number
CA002443375A
Other languages
French (fr)
Other versions
CA2443375C (en
Inventor
Alfred Rieder
Wolfgang Drahm
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
Individual
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 Individual filed Critical Individual
Publication of CA2443375A1 publication Critical patent/CA2443375A1/en
Application granted granted Critical
Publication of CA2443375C publication Critical patent/CA2443375C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

To conduct a fluid, the transducer has a flow tube which in use is vibrated by an excitation system and whose inlet-side and outlet-side vibrations are detected by means of a sensor system. In response to transverse forces produced in the vibrating flow tube, the latter is, at least temporarily, laterally displaced from an assigned static rest position. To improve the dynamic balance of the transducer, a first cantilever and a second cantilever are rigidly fixed to an inlet-side tube section and an outlet-side tube section, respectively.
By means of the cantilevers, the inlet-side and outlet-side tube sections are deformed as a result of lateral displacements of the flow tube. This produces counterforces which at least partially counterbalance the transverse forces produced in the vibrating flow tube. One advantage of the proposed transducer is that it is well balanced even during variations in fluid density.
CA002443375A 2001-04-24 2002-02-28 Vibratory transducer Expired - Fee Related CA2443375C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP01109977A EP1253408A1 (en) 2001-04-24 2001-04-24 Vibration type measuring transducer
EP01109977.7 2001-04-24
PCT/EP2002/002157 WO2002086426A1 (en) 2001-04-24 2002-02-28 Vibration-type measuring transformer

Publications (2)

Publication Number Publication Date
CA2443375A1 true CA2443375A1 (en) 2002-10-31
CA2443375C CA2443375C (en) 2009-06-30

Family

ID=8177225

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002443375A Expired - Fee Related CA2443375C (en) 2001-04-24 2002-02-28 Vibratory transducer

Country Status (6)

Country Link
EP (2) EP1253408A1 (en)
JP (1) JP3947111B2 (en)
CN (1) CN1267711C (en)
CA (1) CA2443375C (en)
RU (1) RU2273827C2 (en)
WO (1) WO2002086426A1 (en)

Families Citing this family (31)

* 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 (en) 2002-05-08 2003-11-20 Endress + Hauser Flowtec Ag Torsional oscillation damper for a vibrating measuring transformer
JP4562497B2 (en) * 2004-11-15 2010-10-13 株式会社オーバル Noise suppression type straight pipe type Coriolis flow meter
EP1872095A1 (en) * 2005-03-29 2008-01-02 Micro Motion Incorporated Coriolis flow meter and method for determining flow characteristics
DE102005042677A1 (en) * 2005-08-27 2007-03-08 Abb Patent Gmbh Coriolis mass flow sensor
US7490521B2 (en) 2005-11-15 2009-02-17 Endress + Hauser Flowtec Ag Measurement transducer of vibration type
DE102005054855A1 (en) * 2005-11-15 2007-05-16 Flowtec Ag Vibration type fluid measurement transducer has counter oscillator coupled to inlet and outlet sides and balanced extension arms generating flexural torques
EP1949048B1 (en) * 2005-11-15 2016-09-21 Endress+Hauser Flowtec AG Vibration-type measuring transducer
US7475603B2 (en) 2005-11-15 2009-01-13 Endress + Hauser Flowtec Ag Measurement transducer of vibration-type
US7472607B2 (en) 2005-11-15 2009-01-06 Endress + Hauser Flowtec Ag Measurement transducer of vibration type
DE102006062185A1 (en) * 2006-12-22 2008-06-26 Endress + Hauser Flowtec Ag Vibration type measuring transducer for use in e.g. coriolis-mass flow measuring device, has connection cables symmetrically shifted relative to axes of tube and inner parts and mirror-symmetrically shifted relative to axes of oscillator
WO2008077817A1 (en) * 2006-12-22 2008-07-03 Endress+Hauser Flowtec Ag Vibratory transducer
DE102007021099A1 (en) 2007-05-03 2008-11-13 Endress + Hauser (Deutschland) Ag + Co. Kg Method for commissioning and / or reconfiguring a programmable field meter
DE102007030699A1 (en) 2007-06-30 2009-01-15 Endress + Hauser Flowtec Ag Measuring system for a medium flowing in a process line
DE102007030690A1 (en) 2007-06-30 2009-05-07 Endress + Hauser Flowtec Ag Measuring system for a medium flowing in a process line
DE102007030691A1 (en) 2007-06-30 2009-01-02 Endress + Hauser Flowtec Ag Measuring system for a medium flowing in a process line
DE102007030700A1 (en) 2007-06-30 2009-05-07 Endress + Hauser Flowtec Ag Measuring system for a medium flowing in a process line
DE102007063372A1 (en) 2007-12-30 2009-07-02 Endress + Hauser Flowtec Ag Measuring system for a medium flowing in a process line
DE102007037166A1 (en) 2007-08-07 2009-02-19 Endress + Hauser Flowtec Ag gauge
DE102007058608A1 (en) 2007-12-04 2009-06-10 Endress + Hauser Flowtec Ag Electric device
DE102008022373A1 (en) 2008-05-06 2009-11-12 Endress + Hauser Flowtec Ag Measuring device and method for monitoring a measuring device
DE102009002289A1 (en) 2009-04-08 2010-10-14 Endress + Hauser Flowtec Ag Method for determining period duration of periodic primary signal for determining e.g. mass flow rate, involves generating reference clock signal, and determining period duration based on number and reference values
WO2011131399A1 (en) 2010-04-19 2011-10-27 Endress+Hauser Flowtec Ag Driver circuit for a measuring transducer and measuring system designed having same
DE202010006553U1 (en) 2010-05-06 2011-10-05 Endress + Hauser Flowtec Ag Electronic measuring device with an optocoupler
DE102010030924A1 (en) 2010-06-21 2011-12-22 Endress + Hauser Flowtec Ag Electronics housing for an electronic device or device formed therewith
DE102011076838A1 (en) 2011-05-31 2012-12-06 Endress + Hauser Flowtec Ag Meter electronics for a meter device and meter device formed thereby
AT517082B1 (en) * 2015-05-20 2016-11-15 Anton Paar Gmbh Measuring device for the examination of fluid samples
CN105067060B (en) * 2015-09-16 2018-02-02 济南大学 A kind of liquid mass flow meter and its detection method based on torsional oscillation
DE102016114860A1 (en) 2016-08-10 2018-02-15 Endress + Hauser Flowtec Ag Driver circuit and thus formed converter electronics or thus formed measuring system
DE102017112950A1 (en) * 2017-06-13 2018-12-13 Krohne Messtechnik Gmbh Magnetic-inductive flowmeter and method for operating a magnetic-inductive flowmeter
JP6785894B2 (en) * 2019-01-21 2020-11-18 マイクロ モーション インコーポレイテッド Improved spool body for vibrating densitometer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212613B (en) * 1987-11-19 1991-07-03 Schlumberger Ind Ltd Improvements in single vibrating tube transducers
US5945609A (en) * 1996-03-08 1999-08-31 Fuji Electric Co., Ltd. Mass flowmeter for measuring flow rate of a fluid
US5987999A (en) * 1998-07-01 1999-11-23 Micro Motion, Inc. Sensitivity enhancing balance bar
DE19840782C2 (en) * 1998-09-08 2001-09-06 Krohne Messtechnik Kg Mass flow meter

Also Published As

Publication number Publication date
JP2004526160A (en) 2004-08-26
EP1253408A1 (en) 2002-10-30
JP3947111B2 (en) 2007-07-18
EP1381830A1 (en) 2004-01-21
CN1502037A (en) 2004-06-02
EP1381830B1 (en) 2021-03-31
RU2273827C2 (en) 2006-04-10
CA2443375C (en) 2009-06-30
WO2002086426A1 (en) 2002-10-31
RU2003133994A (en) 2005-02-27
CN1267711C (en) 2006-08-02

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Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180228