DE3309404C2 - - Google Patents
Info
- Publication number
- DE3309404C2 DE3309404C2 DE19833309404 DE3309404A DE3309404C2 DE 3309404 C2 DE3309404 C2 DE 3309404C2 DE 19833309404 DE19833309404 DE 19833309404 DE 3309404 A DE3309404 A DE 3309404A DE 3309404 C2 DE3309404 C2 DE 3309404C2
- Authority
- DE
- Germany
- Prior art keywords
- bridge
- mass flow
- constant
- resistor
- flow rate
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 15
- 230000035945 sensitivity Effects 0.000 claims description 12
- 230000001419 dependent effect Effects 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims 2
- 230000005611 electricity Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- G01F1/696—Circuits therefor, e.g. constant-current flow meters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833309404 DE3309404A1 (de) | 1983-03-16 | 1983-03-16 | Einrichtung zur messung des massendurchsatzes eines stroemenden mediums |
JP59036355A JPS59174719A (ja) | 1983-03-16 | 1984-02-29 | 流体の流量測定方法及び装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833309404 DE3309404A1 (de) | 1983-03-16 | 1983-03-16 | Einrichtung zur messung des massendurchsatzes eines stroemenden mediums |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3309404A1 DE3309404A1 (de) | 1984-09-20 |
DE3309404C2 true DE3309404C2 (fr) | 1991-08-22 |
Family
ID=6193642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833309404 Granted DE3309404A1 (de) | 1983-03-16 | 1983-03-16 | Einrichtung zur messung des massendurchsatzes eines stroemenden mediums |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS59174719A (fr) |
DE (1) | DE3309404A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19504496A1 (de) * | 1994-02-28 | 1995-08-31 | Ifm Electronic Gmbh | Verfahren zur Messung eines Wärmeübergangs |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3429729A1 (de) * | 1984-08-13 | 1986-07-31 | Weber Sentec GmbH, 2201 Kollmar | Nach kalorimetrischem prinzip arbeitende stroemungsmessanordnung |
US4794794A (en) * | 1986-10-30 | 1989-01-03 | Djorup Robert Sonny | Thermal anemometer |
DE3732856A1 (de) * | 1987-09-29 | 1989-04-06 | Siemens Ag | Intelligenter luftmengenmesser |
JP2631481B2 (ja) * | 1987-12-08 | 1997-07-16 | 株式会社 リンテック | 質量流量計とその計測方法 |
GB8903744D0 (en) * | 1989-02-18 | 1989-04-05 | Endress & Hauser Ltd | Flowmeter |
US5207094A (en) * | 1989-09-20 | 1993-05-04 | Robert Bosch Gmbh | Method and apparatus for controlling the temperature of a heated measuring resistor |
DE3931308C2 (de) * | 1989-09-20 | 1997-02-20 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Temperatursteuerung eines erhitzten Meßwiderstandes |
JP2599854B2 (ja) * | 1991-12-12 | 1997-04-16 | 三菱電機株式会社 | 感熱式流量センサの設定方法 |
DE4426308C2 (de) * | 1994-07-25 | 1998-07-23 | Bosch Gmbh Robert | Schaltungsanordnung für die der Ausgangsspannung eines Sensors, die daraus eine korrigierte Ausgangsspannung bildet |
NL1023405C2 (nl) * | 2003-05-13 | 2004-11-18 | Berkin Bv | Massadebietmeter. |
JP4720133B2 (ja) * | 2004-09-24 | 2011-07-13 | 株式会社デンソー | 放熱型流量センサの駆動回路 |
JP4801501B2 (ja) * | 2006-05-23 | 2011-10-26 | シーケーディ株式会社 | 熱式流量計 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1698050A1 (de) * | 1966-11-30 | 1972-04-06 | Siemens Ag | Einrichtung zur Messung schwacher Gasstroemungen |
JPS5921485B2 (ja) * | 1979-09-17 | 1984-05-21 | 日産自動車株式会社 | 流速又は流量検出器 |
-
1983
- 1983-03-16 DE DE19833309404 patent/DE3309404A1/de active Granted
-
1984
- 1984-02-29 JP JP59036355A patent/JPS59174719A/ja active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19504496A1 (de) * | 1994-02-28 | 1995-08-31 | Ifm Electronic Gmbh | Verfahren zur Messung eines Wärmeübergangs |
DE19504496C2 (de) * | 1994-02-28 | 2000-05-31 | Ifm Electronic Gmbh | Verfahren zur Überwachung der Strömung strömender Medien |
Also Published As
Publication number | Publication date |
---|---|
JPS59174719A (ja) | 1984-10-03 |
DE3309404A1 (de) | 1984-09-20 |
JPH0422206B2 (fr) | 1992-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |