JPH0347692B2 - - Google Patents
Info
- Publication number
- JPH0347692B2 JPH0347692B2 JP59138219A JP13821984A JPH0347692B2 JP H0347692 B2 JPH0347692 B2 JP H0347692B2 JP 59138219 A JP59138219 A JP 59138219A JP 13821984 A JP13821984 A JP 13821984A JP H0347692 B2 JPH0347692 B2 JP H0347692B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- level
- air flow
- electric heater
- voltage
- 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
- 230000008859 change Effects 0.000 claims description 34
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 16
- 230000007423 decrease Effects 0.000 description 15
- 230000004044 response Effects 0.000 description 13
- 239000000446 fuel Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 229910052697 platinum Inorganic materials 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000001131 transforming effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- G01F1/696—Circuits therefor, e.g. constant-current flow meters
- G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
- G01F1/6986—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters with pulsed heating, e.g. dynamic methods
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Flowmeters (AREA)
- Measuring Volume Flow (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59138219A JPS6117019A (ja) | 1984-07-03 | 1984-07-03 | 空気流量測定装置 |
| US06/724,964 US4693115A (en) | 1984-04-24 | 1985-04-19 | Device for measuring flow rate of air |
| DE19853514836 DE3514836A1 (de) | 1984-04-24 | 1985-04-24 | Vorrichtung zum messen des durchsatzes von luft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59138219A JPS6117019A (ja) | 1984-07-03 | 1984-07-03 | 空気流量測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6117019A JPS6117019A (ja) | 1986-01-25 |
| JPH0347692B2 true JPH0347692B2 (ko) | 1991-07-22 |
Family
ID=15216868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59138219A Granted JPS6117019A (ja) | 1984-04-24 | 1984-07-03 | 空気流量測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6117019A (ko) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62231174A (ja) * | 1986-03-31 | 1987-10-09 | Sharp Corp | 流速測定方法 |
| DE3639666A1 (de) * | 1986-11-20 | 1988-06-01 | Draegerwerk Ag | Verfahren zur bestimmung einer messgroesse eines stroemenden mediums und messschaltung hierzu |
| JPH03261889A (ja) * | 1990-03-12 | 1991-11-21 | Shibaura Denshi Seisakusho:Kk | 風速センサ |
| JP3135245B2 (ja) * | 1990-03-19 | 2001-02-13 | 株式会社日立製作所 | パルス出力型熱線式空気流量計 |
-
1984
- 1984-07-03 JP JP59138219A patent/JPS6117019A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6117019A (ja) | 1986-01-25 |
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