JPH0133765B2 - - Google Patents

Info

Publication number
JPH0133765B2
JPH0133765B2 JP55097673A JP9767380A JPH0133765B2 JP H0133765 B2 JPH0133765 B2 JP H0133765B2 JP 55097673 A JP55097673 A JP 55097673A JP 9767380 A JP9767380 A JP 9767380A JP H0133765 B2 JPH0133765 B2 JP H0133765B2
Authority
JP
Japan
Prior art keywords
resistor
air
measuring
bridge circuit
combustion engine
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.)
Expired
Application number
JP55097673A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5618722A (en
Inventor
Puratsupu Gyuntaa
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of JPS5618722A publication Critical patent/JPS5618722A/ja
Publication of JPH0133765B2 publication Critical patent/JPH0133765B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
    • 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
    • G01F1/6983—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters adapted for burning-off deposits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Volume Flow (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
JP9767380A 1979-07-20 1980-07-18 Measuring resistance ignition device for air volume measuring apparatus of internal combustion engine Granted JPS5618722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792929434 DE2929434A1 (de) 1979-07-20 1979-07-20 Einrichtung zum freibrennen eines widerstandes, insbesondere eines hitzdrahtes in einem luftmassenmesser einer brennkraftmaschine

Publications (2)

Publication Number Publication Date
JPS5618722A JPS5618722A (en) 1981-02-21
JPH0133765B2 true JPH0133765B2 (en]) 1989-07-14

Family

ID=6076300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9767380A Granted JPS5618722A (en) 1979-07-20 1980-07-18 Measuring resistance ignition device for air volume measuring apparatus of internal combustion engine

Country Status (3)

Country Link
US (1) US4341114A (en])
JP (1) JPS5618722A (en])
DE (1) DE2929434A1 (en])

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3022685A1 (de) * 1980-06-18 1982-01-07 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zur durchflussmassenmessung bei einer brennkraftmaschine
DE3106508C2 (de) * 1981-02-21 1986-07-31 Robert Bosch Gmbh, 7000 Stuttgart Luftmassenmeßeinrichtung bei einer Brennkraftmaschine
DE3207394A1 (de) * 1982-03-02 1983-09-08 Robert Bosch Gmbh, 7000 Stuttgart Steuereinrichtung in verbindung mit einem luftmassensensor einer brennkraftmaschine
DE3227807A1 (de) * 1982-07-24 1984-01-26 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur verhinderung einer beschaedigung eines in einem stroemungsquerschnitt angeordneten temperaturabhaengigen widerstandes durch ueberhitzung und luftmassenmessvorrichtung zur durchfuehrung des verfahrens
US4450719A (en) * 1982-10-13 1984-05-29 Hitachi, Ltd. Air flow meter
JPS6053814A (ja) * 1983-09-02 1985-03-27 Nippon Denso Co Ltd 空気流量測定装置
JPS60216047A (ja) * 1984-04-11 1985-10-29 Nippon Denso Co Ltd 内燃機関の制御装置
JPS60236024A (ja) * 1984-05-09 1985-11-22 Nippon Soken Inc 直熱型空気流量センサ
US4854155A (en) * 1988-10-19 1989-08-08 Mine Safety Appliances Company Combustible gas detector having catalytic sensor stabilizing network
JPH02197604A (ja) * 1989-01-25 1990-08-06 Kubota Ltd 軌間調節可能なレール締結装置
DE3932304A1 (de) * 1989-09-28 1991-04-11 Bosch Gmbh Robert Verfahren und vorrichtung zur temperatursteuerung eines messwiderstands
JP4357250B2 (ja) * 2003-09-24 2009-11-04 株式会社日立製作所 発熱抵抗体式流体流量測定装置及びそれを備えた内燃機関の制御装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750050C2 (de) * 1977-11-09 1983-12-08 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zur Luftmengenmessung

Also Published As

Publication number Publication date
DE2929434A1 (de) 1981-02-05
US4341114A (en) 1982-07-27
JPS5618722A (en) 1981-02-21

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