DE4020787C2 - - Google Patents
Info
- Publication number
- DE4020787C2 DE4020787C2 DE4020787A DE4020787A DE4020787C2 DE 4020787 C2 DE4020787 C2 DE 4020787C2 DE 4020787 A DE4020787 A DE 4020787A DE 4020787 A DE4020787 A DE 4020787A DE 4020787 C2 DE4020787 C2 DE 4020787C2
- Authority
- DE
- Germany
- Prior art keywords
- flow
- sensor
- parallel
- parallel flow
- chamber
- 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
Links
- 238000000034 method Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003518 caustics Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F5/00—Measuring a proportion of the volume flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- 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
- G01F1/684—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
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Measuring Volume Flow (AREA)
- Sampling And Sample Adjustment (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4020787A DE4020787A1 (de) | 1990-06-27 | 1990-06-27 | Verfahren zur erzeugung eines stroemungs-istwertes fuer die regelung der stroemung eines gasfoermigen mediums und vorrichtung zur durchfuehrung des verfahrens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4020787A DE4020787A1 (de) | 1990-06-27 | 1990-06-27 | Verfahren zur erzeugung eines stroemungs-istwertes fuer die regelung der stroemung eines gasfoermigen mediums und vorrichtung zur durchfuehrung des verfahrens |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4020787A1 DE4020787A1 (de) | 1992-01-09 |
DE4020787C2 true DE4020787C2 (enrdf_load_stackoverflow) | 1992-04-30 |
Family
ID=6409364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4020787A Granted DE4020787A1 (de) | 1990-06-27 | 1990-06-27 | Verfahren zur erzeugung eines stroemungs-istwertes fuer die regelung der stroemung eines gasfoermigen mediums und vorrichtung zur durchfuehrung des verfahrens |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4020787A1 (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005005514B3 (de) * | 2005-02-04 | 2006-08-24 | Hochschule Bremen | Vorrichtung zur Luftmassenstromregelung eines Lüftungssystems |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2436624B (en) * | 2006-03-31 | 2012-01-11 | Nuaire Ltd | Fluid Flow Control Apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3613448A (en) * | 1969-11-26 | 1971-10-19 | Teledyne Inc | Fluid flow measuring apparatus |
SE392970B (sv) * | 1972-05-23 | 1977-04-25 | Lkb Medical Ab | Forfarande och anordning for metning av det momentana volymflodet hos en pulserande, i synnerhet intermittent, fluidstrom |
CH657702A5 (en) * | 1982-10-26 | 1986-09-15 | Ciba Geigy Ag | Flow-rate measuring device for fluids, gases and vapours |
US4475387A (en) * | 1983-03-23 | 1984-10-09 | Teledyne Industries, Inc. | High temperature mass flowmeter |
-
1990
- 1990-06-27 DE DE4020787A patent/DE4020787A1/de active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005005514B3 (de) * | 2005-02-04 | 2006-08-24 | Hochschule Bremen | Vorrichtung zur Luftmassenstromregelung eines Lüftungssystems |
Also Published As
Publication number | Publication date |
---|---|
DE4020787A1 (de) | 1992-01-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |