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.)
Withdrawn
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.)
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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Withdrawn legal-status Critical Current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 US7000464B2 (en) 2002-05-28 2004-03-17 Measuring and control of low fluid flow rates with heated conduit walls
US10/803,149 2004-03-17

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 (https=)
JP (1) JP2007529749A (https=)
KR (1) KR20060134161A (https=)
CN (1) CN100472183C (https=)
WO (1) WO2005089432A2 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
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KR101269541B1 (ko) * 2011-05-30 2013-06-04 한국수력원자력 주식회사 배관 내 유체 흐름 감시 장치 및 방법
KR20240012141A (ko) * 2022-07-20 2024-01-29 삼성전자주식회사 플라즈마 시스템을 이용한 유량 제어 방법

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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
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
US11608618B2 (en) 2011-01-03 2023-03-21 Sentinel Hydrosolutions, Llc Thermal dispersion flow meter with fluid leak detection and freeze burst prevention
US9146172B2 (en) * 2011-01-03 2015-09-29 Sentinel Hydrosolutions, Llc Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection
US9170136B2 (en) 2013-11-05 2015-10-27 Amphenol Thermometrics, Inc. Systems and methods for flow sensing in a conduit
JP6508197B2 (ja) * 2014-03-31 2019-05-08 日立金属株式会社 熱式質量流量測定方法、当該方法を使用する熱式質量流量計、及び当該熱式質量流量計を使用する熱式質量流量制御装置
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US10444048B2 (en) * 2014-12-19 2019-10-15 Deere & Company Fluid flow monitoring system
CN107430018B (zh) * 2015-04-30 2022-03-18 惠普发展公司，有限责任合伙企业 微流体流动传感器
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
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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
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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
KR20240012141A (ko) * 2022-07-20 2024-01-29 삼성전자주식회사 플라즈마 시스템을 이용한 유량 제어 방법

Also Published As

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

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Legal Events

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