FR2705777B1 - Dispositif pour réduire la dérive dans des appareils de mesure. - Google Patents

Dispositif pour réduire la dérive dans des appareils de mesure.

Info

Publication number
FR2705777B1
FR2705777B1 FR9405816A FR9405816A FR2705777B1 FR 2705777 B1 FR2705777 B1 FR 2705777B1 FR 9405816 A FR9405816 A FR 9405816A FR 9405816 A FR9405816 A FR 9405816A FR 2705777 B1 FR2705777 B1 FR 2705777B1
Authority
FR
France
Prior art keywords
measuring devices
reducing drift
drift
reducing
measuring
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 - Fee Related
Application number
FR9405816A
Other languages
English (en)
French (fr)
Other versions
FR2705777A1 (fr
Inventor
Andreas Wildgren
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2705777A1 publication Critical patent/FR2705777A1/fr
Application granted granted Critical
Publication of FR2705777B1 publication Critical patent/FR2705777B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/48—Arrangement of air sensors
    • 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
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Volume Flow (AREA)
FR9405816A 1993-05-28 1994-05-11 Dispositif pour réduire la dérive dans des appareils de mesure. Expired - Fee Related FR2705777B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934317952 DE4317952C1 (de) 1993-05-28 1993-05-28 Vorrichtung zur Driftreduzierung bei einer elektrischen Meßeinrichtung

Publications (2)

Publication Number Publication Date
FR2705777A1 FR2705777A1 (fr) 1994-12-02
FR2705777B1 true FR2705777B1 (fr) 1996-03-08

Family

ID=6489224

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9405816A Expired - Fee Related FR2705777B1 (fr) 1993-05-28 1994-05-11 Dispositif pour réduire la dérive dans des appareils de mesure.

Country Status (4)

Country Link
JP (1) JPH07117437B2 (de)
DE (1) DE4317952C1 (de)
FR (1) FR2705777B1 (de)
GB (1) GB2278451B (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124960A1 (de) * 1981-06-25 1983-01-20 Robert Bosch Gmbh, 7000 Stuttgart "vorrichtung zur messung der masse eines stroemenden mediums"
JPS59190624A (ja) * 1983-04-13 1984-10-29 Hitachi Ltd 吸入空気流量計
DE3515206A1 (de) * 1984-04-26 1985-10-31 Nippon Soken, Inc., Nishio, Aichi Direkt-beheizte gasstroemungs-messvorrichtung
DE3818385A1 (de) * 1987-06-04 1988-12-22 Mazda Motor Hitzdraht-stroemungsmengensensor
DE3838466C2 (de) * 1988-01-16 1995-11-16 Bosch Gmbh Robert Luftmassenmeßvorrichtung und Verfahren zur Herstellung einer Luftmassenmeßvorrichtung
US4981035A (en) * 1989-08-07 1991-01-01 Siemens Automotive L.P. Dust defelector for silicon mass airflow sensor

Also Published As

Publication number Publication date
JPH07117437B2 (ja) 1995-12-18
GB2278451B (en) 1996-10-09
FR2705777A1 (fr) 1994-12-02
GB9410722D0 (en) 1994-07-13
GB2278451A (en) 1994-11-30
JPH06347302A (ja) 1994-12-22
DE4317952C1 (de) 1994-08-04

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Legal Events

Date Code Title Description
ST Notification of lapse