KR880005445A - 열선식 공기유량계 - Google Patents

열선식 공기유량계 Download PDF

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Publication number
KR880005445A
KR880005445A KR870011090A KR870011090A KR880005445A KR 880005445 A KR880005445 A KR 880005445A KR 870011090 A KR870011090 A KR 870011090A KR 870011090 A KR870011090 A KR 870011090A KR 880005445 A KR880005445 A KR 880005445A
Authority
KR
South Korea
Prior art keywords
air flow
bobbin
flow meter
heating resistor
heat generating
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.)
Ceased
Application number
KR870011090A
Other languages
English (en)
Korean (ko)
Inventor
미노루 다카하시
히로아츠 도쿠다
이즈미 와타나베
유타카 니시무라
Original Assignee
미타 가츠시게
가부시키가이샤 히타치세이사쿠쇼
모리 미치츠구
히타치오토모티브 엔지니어링 가부시키가이샤
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
Priority claimed from JP61239940A external-priority patent/JP2511425B2/ja
Priority claimed from JP61239941A external-priority patent/JP2511426B2/ja
Application filed by 미타 가츠시게, 가부시키가이샤 히타치세이사쿠쇼, 모리 미치츠구, 히타치오토모티브 엔지니어링 가부시키가이샤 filed Critical 미타 가츠시게
Publication of KR880005445A publication Critical patent/KR880005445A/ko
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G01F1/684—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
    • G01F1/684—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
    • G01F1/69—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element of resistive type
    • G01F1/692—Thin-film arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
    • G01P5/12—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Volume Flow (AREA)
KR870011090A 1986-10-08 1987-10-05 열선식 공기유량계 Ceased KR880005445A (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP239941 1986-10-08
JP61239940A JP2511425B2 (ja) 1986-10-08 1986-10-08 熱式空気流量計
JP61239941A JP2511426B2 (ja) 1986-10-08 1986-10-08 熱線式空気流量計
JP239940 1986-10-08

Publications (1)

Publication Number Publication Date
KR880005445A true KR880005445A (ko) 1988-06-29

Family

ID=26534505

Family Applications (1)

Application Number Title Priority Date Filing Date
KR870011090A Ceased KR880005445A (ko) 1986-10-08 1987-10-05 열선식 공기유량계

Country Status (6)

Country Link
US (2) US4881407A (enExample)
KR (1) KR880005445A (enExample)
CN (1) CN87106770A (enExample)
DE (1) DE3734081A1 (enExample)
FR (1) FR2605099A1 (enExample)
GB (1) GB2196433B (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0244211A (ja) * 1988-08-04 1990-02-14 Sharp Corp フローセンサ
JP2913887B2 (ja) * 1990-05-30 1999-06-28 株式会社デンソー 熱線式流量計
US5094105A (en) * 1990-08-20 1992-03-10 General Motors Corporation Optimized convection based mass airflow sensor
JPH05215583A (ja) * 1992-02-04 1993-08-24 Mitsubishi Electric Corp 感熱式流量センサ
US5839755A (en) * 1994-03-03 1998-11-24 Trw Vehicle Safety Systems Inc. Method and apparatus for restraining a vehicle occupant
US7000464B2 (en) 2002-05-28 2006-02-21 Mcmillan Company Measuring and control of low fluid flow rates with heated conduit walls
US6736005B2 (en) 2002-05-28 2004-05-18 Mcmillan Company High accuracy measuring and control of low fluid flow rates
JP5010845B2 (ja) * 2006-04-13 2012-08-29 日立オートモティブシステムズ株式会社 流量計及びこれを用いた排気ガス再循環システム
CN104931723A (zh) * 2015-04-30 2015-09-23 无锡市崇安区科技创业服务中心 一种基于铂电阻的风速监控预警系统
CN104808014A (zh) * 2015-04-30 2015-07-29 无锡市崇安区科技创业服务中心 一种基于铂电阻的空气流速传感器
CN106526227B (zh) * 2016-09-30 2019-01-29 南京大学 基于微光纤耦合器的微流速传感器及其测量方法
CN110261641B (zh) * 2019-06-25 2021-09-10 中国工程物理研究院材料研究所 一种可实现响应时间补偿的热式微流量计信号处理电路
CN113194591B (zh) * 2021-04-23 2022-08-26 山东大学 一种在轨除污朗缪尔探针、系统及方法
CN118794553B (zh) * 2024-09-14 2024-12-03 中国空气动力研究与发展中心超高速空气动力研究所 一种铂薄片热电阻热流传感器及其制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2804850C2 (de) * 1978-02-04 1983-11-17 Degussa Ag, 6000 Frankfurt Vorrichtung zur Messung der Strömungsgeschwindigkeit von Gasen
JPS56106159A (en) * 1980-01-28 1981-08-24 Hitachi Ltd Production of sensor for detecting flow speed and flow rate
JPS56108907A (en) * 1980-01-31 1981-08-28 Hitachi Ltd Detector for sucked air flow rate of internal combustion engine
JPS57208412A (en) * 1981-06-19 1982-12-21 Hitachi Ltd Thermal type flow rate detecting device
JPS5895265A (ja) * 1981-12-02 1983-06-06 Hitachi Ltd 熱式流量計
JPS59104513A (ja) * 1982-12-08 1984-06-16 Hitachi Ltd 熱式流量計
JPS59162413A (ja) * 1983-03-07 1984-09-13 Hitachi Ltd 熱式流量計
DE3328852A1 (de) * 1983-08-10 1985-02-28 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur messung der masse eines stroemenden mediums
US4561303A (en) * 1984-12-06 1985-12-31 Ford Motor Company Mass airflow sensor with backflow detection
JPS61194317A (ja) * 1985-02-25 1986-08-28 Nippon Soken Inc 直熱型流量センサ

Also Published As

Publication number Publication date
USRE34104E (en) 1992-10-20
GB2196433A (en) 1988-04-27
DE3734081C2 (enExample) 1991-02-14
US4881407A (en) 1989-11-21
FR2605099A1 (fr) 1988-04-15
DE3734081A1 (de) 1988-04-21
GB8722961D0 (en) 1987-11-04
GB2196433B (en) 1990-10-24
CN87106770A (zh) 1988-04-20

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Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19871005

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19880829

Comment text: Request for Examination of Application

Patent event code: PA02011R01I

Patent event date: 19871005

Comment text: Patent Application

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19910527

Patent event code: PE09021S01D

E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 19910927

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 19910527

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I

J2X1 Appeal (before the patent court)

Free format text: APPEAL AGAINST DECISION TO DECLINE REFUSAL

PJ2001 Appeal

Appeal kind category: Appeal against decision to decline refusal

Decision date: 19920210

Appeal identifier: 1991201001888

Request date: 19911031