KR20060134161A - 저속 유체의 유속을 정확하게 측정하고 제어하는 방법 및시스템 - Google Patents

저속 유체의 유속을 정확하게 측정하고 제어하는 방법 및시스템 Download PDF

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Publication number
KR20060134161A
KR20060134161A KR1020067021474A KR20067021474A KR20060134161A KR 20060134161 A KR20060134161 A KR 20060134161A KR 1020067021474 A KR1020067021474 A KR 1020067021474A KR 20067021474 A KR20067021474 A KR 20067021474A KR 20060134161 A KR20060134161 A KR 20060134161A
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KR
South Korea
Prior art keywords
conduit
fluid
flow
heat
temperature difference
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.)
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Application number
KR1020067021474A
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English (en)
Korean (ko)
Inventor
로버트 엠. 맥밀란
롤랜드 라우
Original Assignee
맥밀란 컴퍼니
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 맥밀란 컴퍼니 filed Critical 맥밀란 컴퍼니
Publication of KR20060134161A publication Critical patent/KR20060134161A/ko
Withdrawn legal-status Critical Current

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    • 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
    • G01F15/005—Valves
    • 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
    • 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
    • G01F1/6847—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct
    • 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
    • G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
    • 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
    • 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
    • G01F1/699—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters by control of a separate heating or cooling element
    • 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
    • G01F15/028—Compensating or correcting for variations in pressure, density or temperature for low flow rates

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Details Of Flowmeters (AREA)
KR1020067021474A 2004-03-17 2005-03-17 저속 유체의 유속을 정확하게 측정하고 제어하는 방법 및시스템 Withdrawn KR20060134161A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/803,149 2004-03-17
US10/803,149 US7000464B2 (en) 2002-05-28 2004-03-17 Measuring and control of low fluid flow rates with heated conduit walls

Publications (1)

Publication Number Publication Date
KR20060134161A true KR20060134161A (ko) 2006-12-27

Family

ID=34994344

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020067021474A Withdrawn KR20060134161A (ko) 2004-03-17 2005-03-17 저속 유체의 유속을 정확하게 측정하고 제어하는 방법 및시스템

Country Status (5)

Country Link
US (1) US7000464B2 (enExample)
JP (1) JP2007529749A (enExample)
KR (1) KR20060134161A (enExample)
CN (1) CN100472183C (enExample)
WO (1) WO2005089432A2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101269541B1 (ko) * 2011-05-30 2013-06-04 한국수력원자력 주식회사 배관 내 유체 흐름 감시 장치 및 방법

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7846130B2 (en) * 2007-03-13 2010-12-07 Quality In Flow Ltd. Portable intravenous fluid heating system
DE102008014327A1 (de) * 2007-03-19 2008-09-25 Vaillant Gmbh Verfahren zur Fehlererkennung eines Strömungssensors
DE102007023840B4 (de) * 2007-05-21 2012-02-09 Abb Ag Thermischer Massendurchflussmesser und Verfahren zu dessen Betrieb
CN101539016B (zh) * 2009-04-21 2014-11-19 北京科技大学 一种利用热扩散测量气液多相流流量的方法及装置
US11608618B2 (en) 2011-01-03 2023-03-21 Sentinel Hydrosolutions, Llc Thermal dispersion flow meter with fluid leak detection and freeze burst prevention
US11814821B2 (en) 2011-01-03 2023-11-14 Sentinel Hydrosolutions, Llc Non-invasive thermal dispersion flow meter with fluid leak detection and geo-fencing control
US9146172B2 (en) * 2011-01-03 2015-09-29 Sentinel Hydrosolutions, Llc Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection
US9759632B2 (en) 2011-01-03 2017-09-12 Sentinel Hydrosolutions, Llc Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection and freeze burst prevention
US9170136B2 (en) 2013-11-05 2015-10-27 Amphenol Thermometrics, Inc. Systems and methods for flow sensing in a conduit
CN106133484B (zh) * 2014-03-31 2019-10-15 日立金属株式会社 热式质量流量测定方法、流量计以及流量控制装置
US10444048B2 (en) * 2014-12-19 2019-10-15 Deere & Company Fluid flow monitoring system
US10786826B2 (en) 2014-12-19 2020-09-29 Deere & Company Equalization of nozzle performance for sprayers
WO2016175843A1 (en) * 2015-04-30 2016-11-03 Hewlett-Packard Development Company, L.P. Microfluidic flow sensor
CN106908621A (zh) * 2015-12-23 2017-06-30 江苏迈拓智能仪表有限公司 一种通过感温发热元件测量管段流速的方法
US10409295B2 (en) * 2016-12-31 2019-09-10 Applied Materials, Inc. Methods and apparatus for enhanced flow detection repeatability of thermal-based mass flow controllers (MFCS)
EP3388794B2 (de) 2017-04-13 2022-03-09 SICK Engineering GmbH Messvorrichtung zum messen einer durchflussgeschwindigkeit eines fluids
JP2019027881A (ja) * 2017-07-28 2019-02-21 アズビル株式会社 測定装置
JP6879858B2 (ja) * 2017-07-31 2021-06-02 アズビル株式会社 熱式流量計
DE102017120941B4 (de) * 2017-09-11 2025-04-30 Endress + Hauser Wetzer Gmbh + Co. Kg Thermisches Durchflussmessgerät und Verfahren zum Betreiben eines thermischen Durchflussmessgeräts
JP6843024B2 (ja) * 2017-09-15 2021-03-17 アズビル株式会社 熱式流量計
EP3899445B1 (en) * 2018-12-20 2024-12-25 Becton, Dickinson And Company Thermal mass fluid flow sensor
EP4392746B1 (en) * 2021-11-28 2025-05-07 Nvention Ltd Flow sensing device and method
DE102022000719A1 (de) 2022-02-28 2023-08-31 Truma Gerätetechnik GmbH & Co. KG Vorrichtung zur Bestimmung und/oder Überwachung einer Kenngröße eines Fluids

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US265800A (en) 1882-10-10 Extension-table
US956785A (en) 1909-06-16 1910-05-03 Owen Thomas Motor Car Company Muffler.
US2087170A (en) 1930-09-12 1937-07-13 Stephenson Arthur Device for the prevention of backfires in gas apparatus
US2591195A (en) 1946-03-01 1952-04-01 Breeze Corp Thermal flowmeter
US2552017A (en) 1947-04-26 1951-05-08 Wright Aeronautical Corp Flowmeter
US2777325A (en) 1952-03-05 1957-01-15 Shell Dev Apparatus for indicating or measuring the flow of liquid through a conduit
US3138025A (en) 1960-07-18 1964-06-23 Leroy M Fingerson High temperature probe
US3335606A (en) 1964-06-16 1967-08-15 Edison Instr Inc Double thermistor flowmeters
US3757808A (en) 1972-07-21 1973-09-11 Garrett Corp Electronic mass airflow sensing and control system
US3857458A (en) 1972-09-11 1974-12-31 Toyo Kogyo Co Exhaust gas outlet means for an internal combustion engine
US3992940A (en) 1973-11-02 1976-11-23 Chrysler Corporation Solid state fluid flow sensor
DE2447617C3 (de) 1974-10-05 1980-09-04 Ellenberger & Poensgen Gmbh, 8503 Altdorf Kalorimetrischer Strömungswächter
GB1501273A (en) 1975-08-22 1978-02-15 Avon Medicals Producing a flow restrictor
US4135396A (en) 1978-04-24 1979-01-23 The Trane Company Temperature compensating fluid velocity sensing apparatus
US4357936A (en) 1979-03-05 1982-11-09 Bear Medical Systems, Inc. Directional thermistor assist sensing
US4257450A (en) 1979-06-01 1981-03-24 Veriflo Corporation Pressure-reducing regulator valve for high-pressure gases
US4255968A (en) 1979-06-08 1981-03-17 Intek, Inc. Flow indicator
US4458709A (en) 1980-03-27 1984-07-10 Binks Manufacturing Company Method and apparatus for measuring and controlling fluid flow rates
US4554136A (en) 1981-01-30 1985-11-19 Allied Corporation Hydrothermal apparatus for synthesizing crystalline powders
US4532811A (en) 1981-07-06 1985-08-06 The Dow Chemical Company Apparatus for metering sub-10 cc/minute liquid flow
US4491024A (en) 1981-07-06 1985-01-01 The Dow Chemical Company Method for metering sub-10 cc/minute liquid flow
US4480467A (en) 1982-11-29 1984-11-06 Hyperion, Inc. Flow monitoring device
US4690245A (en) 1983-03-17 1987-09-01 Stemco, Inc. Flattened venturi, method and apparatus for making
GB2196433B (en) 1986-10-08 1990-10-24 Hitachi Ltd Hot element air flow meter
US4813280A (en) 1987-04-01 1989-03-21 The Dow Chemical Company Thermal pulse flow meter with disposable cell
US4877051A (en) 1988-11-28 1989-10-31 Mks Instruments, Inc. Flow controller
NL8900474A (nl) * 1989-02-24 1990-09-17 Bronkhorst High Tech Bv Massa-debietmeter met temperatuursensoren.
GB2231659B (en) * 1989-05-12 1993-02-17 British Aerospace Measurement of mass of fluid in a container
US5035138A (en) 1990-04-23 1991-07-30 Hewlett-Packard Company Mass flow sensor having wide dynamic range
JPH086268Y2 (ja) 1990-06-15 1996-02-21 オーバル機器工業株式会社 熱式流量計
US5209115A (en) * 1991-09-11 1993-05-11 Intelsat Liquid detector for thin-walled tanks operating in zero gravity
US5764539A (en) 1994-01-21 1998-06-09 Novartis Nutrition Ag Non-invasive system and method for a fluid flow monitoring system
US5980102A (en) 1994-06-20 1999-11-09 Columbia Gas Of Ohio Method for measuring physical characteristics in a pipeline without tapping
US5645348A (en) 1994-06-20 1997-07-08 Columbia Gas Of Ohio, Inc. Method and apparatus for measuring pressure in a pipeline without tapping
US5557967A (en) 1995-02-24 1996-09-24 Pacesetter, Inc. Thermopile flow sensor
DE19509555B4 (de) 1995-03-16 2006-01-19 Robert Bosch Gmbh Durchflußsensor
US5911238A (en) 1996-10-04 1999-06-15 Emerson Electric Co. Thermal mass flowmeter and mass flow controller, flowmetering system and method
JP3361968B2 (ja) * 1997-09-11 2003-01-07 三菱電機株式会社 感熱式流量計
CN1245285A (zh) * 1998-08-18 2000-02-23 重庆大学 高温循环灰流量连续测量方法及装置
JP2000227354A (ja) * 1998-12-01 2000-08-15 Nippon M K S Kk 流量センサ
US6119710A (en) 1999-05-26 2000-09-19 Cyber Instrument Technologies Llc Method for wide range gas flow system with real time flow measurement and correction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101269541B1 (ko) * 2011-05-30 2013-06-04 한국수력원자력 주식회사 배관 내 유체 흐름 감시 장치 및 방법
US9103710B2 (en) 2011-05-30 2015-08-11 Korea Atomic Energy Research Institute Apparatus and method of monitoring flow of liquid in pipe

Also Published As

Publication number Publication date
CN100472183C (zh) 2009-03-25
CN1954196A (zh) 2007-04-25
US20040173019A1 (en) 2004-09-09
WO2005089432A2 (en) 2005-09-29
JP2007529749A (ja) 2007-10-25
WO2005089432A3 (en) 2005-11-24
US7000464B2 (en) 2006-02-21

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Date Code Title Description
PA0105 International application

Patent event date: 20061017

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid