CA2147619A1 - Method and Apparatus for Measuring the Flow Rate of a Medium Flow - Google Patents

Method and Apparatus for Measuring the Flow Rate of a Medium Flow

Info

Publication number
CA2147619A1
CA2147619A1 CA2147619A CA2147619A CA2147619A1 CA 2147619 A1 CA2147619 A1 CA 2147619A1 CA 2147619 A CA2147619 A CA 2147619A CA 2147619 A CA2147619 A CA 2147619A CA 2147619 A1 CA2147619 A1 CA 2147619A1
Authority
CA
Canada
Prior art keywords
measurement
flow
pct
flow rate
medium
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
CA2147619A
Other languages
French (fr)
Other versions
CA2147619C (en
Inventor
Albertus Theodorus Huiberts
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.)
Gascontrol BV
Original Assignee
Albertus Theodorus Huiberts
Gascontrol B.V.
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 Albertus Theodorus Huiberts, Gascontrol B.V. filed Critical Albertus Theodorus Huiberts
Publication of CA2147619A1 publication Critical patent/CA2147619A1/en
Application granted granted Critical
Publication of CA2147619C publication Critical patent/CA2147619C/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
    • G01F7/00—Volume-flow measuring devices with two or more measuring ranges; Compound meters
    • 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
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6842—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow with means for influencing the fluid flow
    • 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
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/696—Circuits therefor, e.g. constant-current flow meters
    • G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
    • G01F1/6986—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters with pulsed heating, e.g. dynamic methods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F5/00—Measuring a proportion of the volume flow
    • 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
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/696—Circuits therefor, e.g. constant-current flow meters
    • G01F1/6965—Circuits therefor, e.g. constant-current flow meters comprising means to store calibration data for flow signal calculation or correction

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Details Of Flowmeters (AREA)

Abstract

PCT No. PCT/NL93/00222 Sec. 371 Date May 2, 1995 Sec. 102(e) Date May 2, 1995 PCT Filed Oct. 29, 1993 PCT Pub. No. WO94/10540 PCT Pub. Date May 11, 1995The flow rate of a medium flowing through a channel is measured by using a number of measurement sites along which the medium flows continuously at different velocities. The heating of the medium at the measurement site and the measurements of the temperature changes at the measurement sites are used to measure the rate of flow. Calibration information for the flow measurement for each measurement site is utilized to establish a rule which would include information about the measurement accuracy over the measurement range for each measurement site. The flow rate to be measured is established upon the basis of the measurement result of a measurement site which gives the greatest measurement accuracy according to the predetermined rule. The measurement of the flow at a measurement site comprises heating the medium during a first interval and during a second interval subsequent to the firest interval the temperature reduction is monitored at the measurement site. The flow rate is established on the basis of the temperature reduction.
CA002147619A 1992-11-02 1993-10-29 Method and apparatus for measuring the flow rate of a medium flow Expired - Fee Related CA2147619C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL9201906 1992-11-02
NL9201906A NL9201906A (en) 1992-11-02 1992-11-02 Method and device for measuring the flow rate of a medium flow.
PCT/NL1993/000222 WO1994010540A1 (en) 1992-11-02 1993-10-29 Method and apparatus for measuring the flow rate of a medium flow

Publications (2)

Publication Number Publication Date
CA2147619A1 true CA2147619A1 (en) 1994-05-11
CA2147619C CA2147619C (en) 2000-01-11

Family

ID=19861463

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002147619A Expired - Fee Related CA2147619C (en) 1992-11-02 1993-10-29 Method and apparatus for measuring the flow rate of a medium flow

Country Status (8)

Country Link
US (1) US5869758A (en)
EP (1) EP0670034B1 (en)
AT (1) ATE150546T1 (en)
AU (1) AU670162B2 (en)
CA (1) CA2147619C (en)
DE (1) DE69309100T2 (en)
NL (1) NL9201906A (en)
WO (1) WO1994010540A1 (en)

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AU3786697A (en) * 1997-07-29 1999-02-22 Gascontrol B.V. Gasmeter
US6447520B1 (en) * 2001-03-19 2002-09-10 Advanced Medical Optics, Inc. IOL insertion apparatus with IOL engagement structure and method for using same
JP2000343702A (en) * 1999-06-04 2000-12-12 Canon Inc Liquid ejecting head and liquid ejecting device using the liquid ejecting head
US6477900B2 (en) * 2001-01-08 2002-11-12 Jet Sensor Ltd. Fluidic gas metering system
US6820480B2 (en) * 2001-03-26 2004-11-23 Sit La Precisa S.P.A. Device for measuring gas flow-rate particularly for burners
US6843110B2 (en) * 2002-06-25 2005-01-18 Fluid Components International Llc Method and apparatus for validating the accuracy of a flowmeter
US6796172B2 (en) 2002-07-31 2004-09-28 Hewlett-Packard Development Company, L.P. Flow sensor
US6871535B2 (en) 2002-08-14 2005-03-29 Hewlett-Packard Development Company, L.P. Flow direction detector
US7720629B2 (en) * 2003-03-19 2010-05-18 Institute of Acoustics, Chinese Academy of Science Method and system for measuring flow layer velocities using correlation velocity measuring sonar
DE10317166A1 (en) * 2003-04-15 2004-11-04 Abb Research Ltd. Gas meter arrangement with improved flow geometry
US7201049B2 (en) * 2003-10-31 2007-04-10 Degree Controls, Inc. Pulsed thermistor sensor
US7481213B2 (en) * 2004-02-11 2009-01-27 Hewlett-Packard Development Company, L.P. Medicament dispenser
US7467630B2 (en) * 2004-02-11 2008-12-23 Hewlett-Packard Development Company, L.P. Medicament dispenser
JP2006047185A (en) * 2004-08-06 2006-02-16 Mitsui Mining & Smelting Co Ltd Apparatus for detecting leakage of liquid in tank
US20060159091A1 (en) * 2005-01-19 2006-07-20 Arjen Boers Active multicast information protocol
DE102006027420B4 (en) * 2006-06-13 2008-05-08 Siemens Ag Hot-film anemometer with sensor elements embedded in a flow body
DE102007017058A1 (en) * 2007-04-11 2008-10-16 Continental Automotive Gmbh Method for air mass measurement and air mass sensor
DE102007023823B4 (en) * 2007-05-21 2014-12-18 Abb Ag Thermal mass flow meter and method of operation
JP2009014601A (en) 2007-07-06 2009-01-22 Yamatake Corp Flow meter
JP4465725B2 (en) * 2008-04-04 2010-05-19 株式会社デンソー Liquid concentration measuring device
US8813557B2 (en) * 2011-04-12 2014-08-26 Bosch Automotive Service Solutions Llc Diesel particulate filter flow rate measuring apparatus and method
EP2972128B1 (en) * 2013-03-12 2021-12-15 BL Technologies, Inc. Flow sensor circuit for monitoring a fluid flowpath
US9080908B2 (en) * 2013-07-24 2015-07-14 Jesse Yoder Flowmeter design for large diameter pipes
US20150369644A1 (en) * 2014-06-19 2015-12-24 Hayward Industries, Inc. Thermally-Dissipative Flow Sensor System
EP2824432B1 (en) * 2014-08-21 2018-01-10 Sensirion AG Housing for flow measurements
US20160161307A1 (en) * 2014-12-05 2016-06-09 General Electric Company System and method for metering gas
GB2553681B (en) 2015-01-07 2019-06-26 Homeserve Plc Flow detection device
GB201501935D0 (en) 2015-02-05 2015-03-25 Tooms Moore Consulting Ltd And Trow Consulting Ltd Water flow analysis
US10330510B2 (en) 2015-05-07 2019-06-25 Natural Gas Solutions North America, Llc Temperature sensing system and flow metering apparatus comprised thereof
DE102015109686A1 (en) * 2015-06-17 2016-12-22 Ebm-Papst Landshut Gmbh Nozzle device with sensor in a bypass
US20170188486A1 (en) * 2015-12-29 2017-06-29 Schneider Electric It Corporation Rack airflow monitoring system and method
US10942050B2 (en) * 2016-06-24 2021-03-09 Hitachi Automotive Systems, Ltd. Thermal flowmeter
EP3421947B1 (en) 2017-06-30 2019-08-07 Sensirion AG Operation method for flow sensor device
DE102019103674A1 (en) * 2019-02-13 2020-08-13 Helmholtz-Zentrum Dresden-Rossendorf E. V. Flow measurement arrangement and fluidic arrangement
DE102019125243B4 (en) * 2019-09-19 2022-08-11 Helmholtz-Zentrum Dresden - Rossendorf E. V. MULTI-PHASE MEASURING SYSTEM WITH CALIBRATION VALUE FOLLOWING AND FLUID ARRANGEMENT
JP2023018236A (en) * 2021-07-27 2023-02-08 セイコーエプソン株式会社 Circuit arrangement and oscillator

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DE1523251A1 (en) * 1966-09-28 1969-04-03 Siemens Ag Arrangement for determining the speed of a flowing medium
CH549218A (en) * 1971-06-11 1974-05-15 Sandoz Ag METHOD OF MONITORING FLOW OF A MEDIUM.
US4483200A (en) * 1981-01-19 1984-11-20 Anima Corporation Thermal pulse flowmeter
JPS58501094A (en) * 1981-07-13 1983-07-07 バテル　メモリアル　インステイチユ−ト A method for determining at least one instantaneous parameter of a fluid associated with heat exchange of a probe immersed in the fluid, and an apparatus for carrying out the method.
DE3210888A1 (en) * 1982-03-25 1983-09-29 Robert Bosch Gmbh, 7000 Stuttgart Measuring arrangement for measuring flow velocities
US4653321A (en) * 1985-06-07 1987-03-31 Enron Corp. Method of automatically measuring fluid flow rates
CH667919A5 (en) * 1986-04-08 1988-11-15 Battelle Memorial Institute METHOD FOR DETERMINING THE FLOW OF A FLUID.
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JP2552320B2 (en) * 1988-02-25 1996-11-13 株式会社ユニシアジェックス Hot wire air flow rate detector for internal combustion engine
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Also Published As

Publication number Publication date
DE69309100T2 (en) 1997-10-09
NL9201906A (en) 1994-06-01
WO1994010540A1 (en) 1994-05-11
EP0670034A1 (en) 1995-09-06
EP0670034B1 (en) 1997-03-19
ATE150546T1 (en) 1997-04-15
US5869758A (en) 1999-02-09
DE69309100D1 (en) 1997-04-24
AU5576994A (en) 1994-05-24
AU670162B2 (en) 1996-07-04
CA2147619C (en) 2000-01-11

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