JPH0383825U - - Google Patents
Info
- Publication number
- JPH0383825U JPH0383825U JP1989146141U JP14614189U JPH0383825U JP H0383825 U JPH0383825 U JP H0383825U JP 1989146141 U JP1989146141 U JP 1989146141U JP 14614189 U JP14614189 U JP 14614189U JP H0383825 U JPH0383825 U JP H0383825U
- Authority
- JP
- Japan
- Prior art keywords
- heat
- sensitive resistor
- sensitive
- rectifying
- rectifying net
- 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
- 239000012530 fluid Substances 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
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
-
- 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
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
- G01F1/6842—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow with means for influencing the fluid flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989146141U JP2524144Y2 (ja) | 1989-12-18 | 1989-12-18 | 感熱式流量センサ |
| KR2019900017334U KR930005043Y1 (ko) | 1989-12-18 | 1990-11-13 | 감열식 유량센서 |
| US07/627,452 US5163322A (en) | 1989-12-18 | 1990-12-14 | Thermal flow sensor |
| DE4040375A DE4040375C2 (de) | 1989-12-18 | 1990-12-17 | Thermischer Durchflußmengenmesser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989146141U JP2524144Y2 (ja) | 1989-12-18 | 1989-12-18 | 感熱式流量センサ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0383825U true JPH0383825U (US06168776-20010102-C00028.png) | 1991-08-26 |
| JP2524144Y2 JP2524144Y2 (ja) | 1997-01-29 |
Family
ID=15401071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989146141U Expired - Lifetime JP2524144Y2 (ja) | 1989-12-18 | 1989-12-18 | 感熱式流量センサ |
Country Status (4)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE36489E (en) * | 1994-04-06 | 2000-01-11 | Janos Technology Inc. | Spectral analyzer with new high efficiency collection optics and method of using same |
| DE10027831C2 (de) * | 2000-06-05 | 2002-08-01 | Siemens Ag | Massenstrommesser |
| TWI220540B (en) * | 2003-07-18 | 2004-08-21 | Au Optronics Corp | Buffer of pressure gauge sensor used in dry etching reaction chamber |
| US7905153B2 (en) * | 2009-04-24 | 2011-03-15 | Mann+Hummel Gmbh | Flow vortex suppression apparatus for a mass air flow sensor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61173747U (US06168776-20010102-C00028.png) * | 1985-04-18 | 1986-10-29 | ||
| JPS62232517A (ja) * | 1986-04-02 | 1987-10-13 | Hitachi Ltd | 熱線式空気流量計 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3687130A (en) * | 1969-11-26 | 1972-08-29 | Pelam Inc | Instrument to measure pulmonary function |
| EP0008185B1 (en) * | 1978-08-05 | 1983-06-08 | Nissan Motor Co., Ltd. | Flowmeter of hot wire type |
| DE2934137C2 (de) * | 1978-08-25 | 1985-05-15 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | Strömungsmeßanordnung zum Messen einer Strömungsmenge in einem rohrförmigen Kanal |
| DE3009382A1 (de) * | 1980-03-12 | 1981-09-24 | Degussa Ag, 6000 Frankfurt | Vorrichtung zur messung der stroemungsgeschwindigkeiten von gasen und fluessigkeiten |
| US4433576A (en) * | 1982-09-20 | 1984-02-28 | General Motors Corporation | Mass airflow sensor |
| DE3855552T2 (de) * | 1987-10-23 | 1997-02-20 | Hitachi Ltd | Heissdraht-Luftdurchflussmesser und dessen Verwendung in einer Brennkraftmaschine |
-
1989
- 1989-12-18 JP JP1989146141U patent/JP2524144Y2/ja not_active Expired - Lifetime
-
1990
- 1990-11-13 KR KR2019900017334U patent/KR930005043Y1/ko not_active IP Right Cessation
- 1990-12-14 US US07/627,452 patent/US5163322A/en not_active Expired - Lifetime
- 1990-12-17 DE DE4040375A patent/DE4040375C2/de not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61173747U (US06168776-20010102-C00028.png) * | 1985-04-18 | 1986-10-29 | ||
| JPS62232517A (ja) * | 1986-04-02 | 1987-10-13 | Hitachi Ltd | 熱線式空気流量計 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4040375A1 (de) | 1991-06-27 |
| KR930005043Y1 (ko) | 1993-07-29 |
| DE4040375C2 (de) | 1996-10-24 |
| KR910012243U (ko) | 1991-07-30 |
| JP2524144Y2 (ja) | 1997-01-29 |
| US5163322A (en) | 1992-11-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |