KR840006069A - 열식유량계(熱式流量計) - Google Patents

열식유량계(熱式流量計) Download PDF

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Publication number
KR840006069A
KR840006069A KR1019830003883A KR830003883A KR840006069A KR 840006069 A KR840006069 A KR 840006069A KR 1019830003883 A KR1019830003883 A KR 1019830003883A KR 830003883 A KR830003883 A KR 830003883A KR 840006069 A KR840006069 A KR 840006069A
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KR
South Korea
Prior art keywords
signal
amplifier
power supply
thermostat
line
Prior art date
Application number
KR1019830003883A
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English (en)
Other versions
KR900005880B1 (ko
Inventor
사다야스 우에노
Original Assignee
미다 가쓰시게
가부시기가이샤 히다찌 세이사꾸쇼
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
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Application filed by 미다 가쓰시게, 가부시기가이샤 히다찌 세이사꾸쇼 filed Critical 미다 가쓰시게
Publication of KR840006069A publication Critical patent/KR840006069A/ko
Application granted granted Critical
Publication of KR900005880B1 publication Critical patent/KR900005880B1/ko

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor
    • 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
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Volume Flow (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

내용 없음

Description

열식유량계(熱式流量計)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명의 일실시예인 센서부착부의 부분단면도.
제2도는 본원 발명의 일실시예인 블록회로도.
제3도는 본원 발명의 일실시예인 센서구동 회로도.
* 도면의 주요부분에 대한 부호의 설명
3 : 감온소자 16 : 증폭기
32 : A/D 변환기 40 : 베터리
50 : 신호선 52 : 복귀선
56 : 접지전위선

Claims (2)

  1. 감온소자 및 이 감온소자를 흐르는 전류는 증폭하는 증폭기로 이루어진 센서부와, 이 증폭기로부터의 신호 디지탈신호로 변환하는 A/D 변환기 및 디지탈 연산부로 이루어진 신호처리부와, 전원과 이 전원에서 상기 감온소자 및 상기 증폭기에 전류를 공급하는 신호선과, 상기 감온소자에서 상기 전원에 전류를 되돌리는 복귀선과, 상기 증폭기의 접지전위선을 가지며, 이 접지전위선을 상기 신호처리부내에서 접지한 것을 특징으로 하는 열식유량계.
  2. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019830003883A 1982-08-23 1983-08-19 열식유량계(熱式流量計) KR900005880B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP57144738A JPS5935109A (ja) 1982-08-23 1982-08-23 熱式流量計
JP144738 1982-08-23

Publications (2)

Publication Number Publication Date
KR840006069A true KR840006069A (ko) 1984-11-21
KR900005880B1 KR900005880B1 (ko) 1990-08-13

Family

ID=15369196

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830003883A KR900005880B1 (ko) 1982-08-23 1983-08-19 열식유량계(熱式流量計)

Country Status (5)

Country Link
US (1) US4534218A (ko)
EP (1) EP0103212B2 (ko)
JP (1) JPS5935109A (ko)
KR (1) KR900005880B1 (ko)
DE (1) DE3375511D1 (ko)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153711A (ja) * 1985-12-27 1987-07-08 Japan Electronic Control Syst Co Ltd 感温式流量測定装置
JPS62153712A (ja) * 1985-12-27 1987-07-08 Japan Electronic Control Syst Co Ltd 感温式流量測定装置
JPS62165518U (ko) * 1986-04-10 1987-10-21
KR910002791B1 (ko) * 1987-01-23 1991-05-04 미쓰비시 뎅끼 가부시기가이샤 에어프로센서용 입력처리회로
JPH07122586B2 (ja) * 1987-02-02 1995-12-25 三菱電機株式会社 エア・フロ−・センサ用入力処理回路
US4918995A (en) * 1988-01-04 1990-04-24 Gas Research Institute Electronic gas meter
JP2765881B2 (ja) * 1988-11-09 1998-06-18 三菱電機株式会社 内燃機関の吸入空気量計測装置
JPH06105176B2 (ja) * 1989-06-14 1994-12-21 株式会社日立製作所 熱式空気流量計
US5263369A (en) * 1992-07-24 1993-11-23 Bear Medical Systems, Inc. Flow sensor system and method
JP2682348B2 (ja) * 1992-09-17 1997-11-26 株式会社日立製作所 空気流量計及び空気流量検出方法
EP1014046A4 (en) * 1996-09-13 2002-05-29 Hitachi Ltd THERMAL FLOWMETER
JP2000018989A (ja) * 1998-06-30 2000-01-21 Hitachi Ltd レシオメトリック出力型発熱抵抗体式空気流量計

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4948893B1 (ko) * 1970-08-29 1974-12-24
US3975951A (en) * 1974-03-21 1976-08-24 Nippon Soken, Inc. Intake-air amount detecting system for an internal combustion engine
US4056975A (en) * 1976-02-09 1977-11-08 Tylan Corporation Mass flow sensor system
DE2751196C2 (de) * 1977-11-16 1985-06-20 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur Luftmengenmessung
JPS5543447A (en) * 1978-09-22 1980-03-27 Hitachi Ltd Hot-wire type flow rate measuring device
US4206638A (en) * 1978-12-06 1980-06-10 Djorup Robert Sonny Directional heat loss anemometer transducer
DE2852904A1 (de) * 1978-12-07 1980-06-19 Vdo Schindling Durchflussmesseinrichtung
JPS5618721A (en) * 1979-07-24 1981-02-21 Hitachi Ltd Air flow meter
JPS5722563A (en) * 1980-07-15 1982-02-05 Hitachi Ltd Sucked air flowmeter for internal combustion engine

Also Published As

Publication number Publication date
DE3375511D1 (en) 1988-03-03
US4534218A (en) 1985-08-13
JPH0326436B2 (ko) 1991-04-10
EP0103212B2 (en) 1993-10-13
KR900005880B1 (ko) 1990-08-13
EP0103212B1 (en) 1988-01-27
EP0103212A1 (en) 1984-03-21
JPS5935109A (ja) 1984-02-25

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