DK358085A - Fremgangsmaade til maaling af et fluidums stroemningshastighed v efter princippet med fase-efterregulering og differensfrekvensudnyttelse - Google Patents
Fremgangsmaade til maaling af et fluidums stroemningshastighed v efter princippet med fase-efterregulering og differensfrekvensudnyttelse Download PDFInfo
- Publication number
- DK358085A DK358085A DK358085A DK358085A DK358085A DK 358085 A DK358085 A DK 358085A DK 358085 A DK358085 A DK 358085A DK 358085 A DK358085 A DK 358085A DK 358085 A DK358085 A DK 358085A
- Authority
- DK
- Denmark
- Prior art keywords
- difference frequency
- regulation
- measuring
- procedure
- principle
- Prior art date
Links
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
- G01F1/66—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
- G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
- G01P5/247—Sing-around-systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3429099 | 1984-08-07 | ||
DE19843429099 DE3429099A1 (de) | 1984-08-07 | 1984-08-07 | Verfahren zur messung der stroemungsgeschwindigkeit v eines fluids nach dem prinzip der phasen-nachregelung und differenzfrequenz-auswertung |
Publications (3)
Publication Number | Publication Date |
---|---|
DK358085D0 DK358085D0 (da) | 1985-08-06 |
DK358085A true DK358085A (da) | 1986-02-08 |
DK168248B1 DK168248B1 (da) | 1994-02-28 |
Family
ID=6242546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK358085A DK168248B1 (da) | 1984-08-07 | 1985-08-06 | Fremgangsmåde til måling af et fluidums strømningshastighed efter princippet med fase-efterreguler ing og differensfrekvensudnyttelse |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0171067B1 (da) |
AT (1) | ATE59905T1 (da) |
DE (2) | DE3429099A1 (da) |
DK (1) | DK168248B1 (da) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK0521182T3 (da) * | 1991-07-04 | 1993-05-24 | Siemens Ag | Fremgangsmåde til måling af strømningshastigheden af et fluidum med ultralyd |
DE4400448C1 (de) * | 1994-01-10 | 1995-07-13 | Siemens Ag | Ansteuer- und Auswerteanordnung für zwei als Sender und Empfänger betreibbare Ultraschallwandler |
DK200101581A (da) | 2001-10-26 | 2003-04-27 | Danfoss As | Transceiverkredsløb til ultralydsflowmåler |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3751979A (en) * | 1971-11-17 | 1973-08-14 | Raytheon Co | Speed measurement system |
USRE28929E (en) * | 1972-07-03 | 1976-08-17 | E. I. Du Pont De Nemours & Company | Ultrasonic fluid speed of sound and flow meter apparatus and method |
DE3020282C2 (de) * | 1980-05-28 | 1985-08-08 | Siemens AG, 1000 Berlin und 8000 München | Durchfluß-Strömungsmesser mit Ultraschall |
DE3029140C2 (de) * | 1980-07-31 | 1982-05-19 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Eichvorrichtung für akustische Strömungsgeschwindigkeitsmeßgeräte |
DE3334819A1 (de) * | 1983-09-26 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur messung von stroemungsgeschwindigkeiten mit ultraschall |
-
1984
- 1984-08-07 DE DE19843429099 patent/DE3429099A1/de not_active Withdrawn
-
1985
- 1985-08-06 DK DK358085A patent/DK168248B1/da not_active IP Right Cessation
- 1985-08-06 AT AT85109888T patent/ATE59905T1/de not_active IP Right Cessation
- 1985-08-06 DE DE8585109888T patent/DE3581241D1/de not_active Expired - Fee Related
- 1985-08-06 EP EP85109888A patent/EP0171067B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0171067A3 (en) | 1989-03-29 |
DK358085D0 (da) | 1985-08-06 |
DK168248B1 (da) | 1994-02-28 |
EP0171067A2 (de) | 1986-02-12 |
EP0171067B1 (de) | 1991-01-09 |
DE3429099A1 (de) | 1986-02-20 |
DE3581241D1 (de) | 1991-02-14 |
ATE59905T1 (de) | 1991-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B1 | Patent granted (law 1993) | ||
PBP | Patent lapsed |