JPS60235021A - 熱式空気流量測定装置 - Google Patents
熱式空気流量測定装置Info
- Publication number
- JPS60235021A JPS60235021A JP59090405A JP9040584A JPS60235021A JP S60235021 A JPS60235021 A JP S60235021A JP 59090405 A JP59090405 A JP 59090405A JP 9040584 A JP9040584 A JP 9040584A JP S60235021 A JPS60235021 A JP S60235021A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- heating current
- air flow
- sensing element
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims description 16
- 230000000737 periodic effect Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000000446 fuel Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003079 width control 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
- G01F1/6986—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters with pulsed heating, e.g. dynamic methods
Landscapes
- Measuring Volume Flow (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59090405A JPS60235021A (ja) | 1984-05-07 | 1984-05-07 | 熱式空気流量測定装置 |
| US06/729,852 US4665745A (en) | 1984-05-07 | 1985-05-02 | Heat wire type air flowrate measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59090405A JPS60235021A (ja) | 1984-05-07 | 1984-05-07 | 熱式空気流量測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60235021A true JPS60235021A (ja) | 1985-11-21 |
| JPH0522850B2 JPH0522850B2 (enrdf_load_stackoverflow) | 1993-03-30 |
Family
ID=13997671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59090405A Granted JPS60235021A (ja) | 1984-05-07 | 1984-05-07 | 熱式空気流量測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60235021A (enrdf_load_stackoverflow) |
-
1984
- 1984-05-07 JP JP59090405A patent/JPS60235021A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0522850B2 (enrdf_load_stackoverflow) | 1993-03-30 |
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