DK458784D0 - PROCEDURE FOR MEASURING ULTRASIDE SPEED SPEEDS - Google Patents
PROCEDURE FOR MEASURING ULTRASIDE SPEED SPEEDSInfo
- Publication number
- DK458784D0 DK458784D0 DK458784A DK458784A DK458784D0 DK 458784 D0 DK458784 D0 DK 458784D0 DK 458784 A DK458784 A DK 458784A DK 458784 A DK458784 A DK 458784A DK 458784 D0 DK458784 D0 DK 458784D0
- Authority
- DK
- Denmark
- Prior art keywords
- ultrasonic
- delta
- phase
- oscillator
- flow
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
-
- 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)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Tests Of Electronic Circuits (AREA)
- Saccharide Compounds (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
1. A method of measuring the rate of flow of a liquid or gaseous medium using ultrasonics, with a measuring section located between two ultrasonic transducers (1, 2) and traversed by the medium whose flow direction includes at least one component in the direction of the measuring section, where the two ultrasonic transducers (1, 2) are periodically operated alternately as transmitter and receiver in order to produce two ultrasonic propagation directions, where the ultrasonic radiation is produced by a voltage-controlled oscillator (3) whose output is connected via a transmitting stage (4) to an ultrasonic transducer (1, 2), and whose frequency is regulated in both propagation directions by a phase-regulating circuit such that the phase position of the received ultrasonic signal is identical in both propagation directions, and the rate of flow is determined by digital analysis of the difference between the two frequencies obtained in this way, characterised in that in each propagation direction, following a settling time of the phase-regulating circuit, the control signal of the oscillator (3) is stored, that the rate of flow is determined by a calculating circuit during a following analysis time (DELTA t1 , DELTA t1 * , DELTA t2 , DELTA t2 * ), and that during the analysis time the transmitting stage (4), the receiver (5) for ultrasonic radiation, and the phase regulator (6) are cut off from the operating voltage, the output of the oscillator (3) is cut off from the following transmitting stage (4), and the control input of the oscillator (3) is cut off from the phase regulator (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3334819 | 1983-09-26 | ||
| DE19833334819 DE3334819A1 (en) | 1983-09-26 | 1983-09-26 | METHOD FOR MEASURING FLOW RATES WITH ULTRASONIC |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK458784D0 true DK458784D0 (en) | 1984-09-25 |
| DK458784A DK458784A (en) | 1985-03-27 |
| DK166974B1 DK166974B1 (en) | 1993-08-09 |
Family
ID=6210114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK458784A DK166974B1 (en) | 1983-09-26 | 1984-09-25 | PROCEDURE FOR MEASURING ULTRASIDE SPEED SPEEDS |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0137338B1 (en) |
| AT (1) | ATE31823T1 (en) |
| DE (2) | DE3334819A1 (en) |
| DK (1) | DK166974B1 (en) |
| YU (1) | YU159384A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3429099A1 (en) * | 1984-08-07 | 1986-02-20 | Siemens AG, 1000 Berlin und 8000 München | METHOD FOR MEASURING THE FLOW RATE V OF A FLUID AFTER THE PRINCIPLE OF THE PHASE READING AND DIFFERENTIAL FREQUENCY EVALUATION |
| DK200101581A (en) | 2001-10-26 | 2003-04-27 | Danfoss As | Transceiver circuit for ultrasonic flow meter |
| DE102004023147A1 (en) * | 2004-05-07 | 2005-11-24 | Endress + Hauser Flowtec Ag, Reinach | Device for determining and / or monitoring the volume and / or mass flow rate of a medium |
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 |
| DE2828937A1 (en) * | 1978-06-30 | 1980-01-10 | Siemens Ag | DEVICE FOR MEASURING FLOW RATES WITH THE AID OF ULTRASONIC VIBRATIONS |
| DE3036376C2 (en) * | 1980-09-26 | 1983-04-07 | AOA Apparatebau Gauting GmbH, 8035 Gauting | Flow rate meters for gases and liquids |
| JPS5833123A (en) * | 1981-08-21 | 1983-02-26 | Fuji Electric Co Ltd | Measuring device for ultrasonic wave flow rate |
| DE3150011A1 (en) * | 1981-12-17 | 1983-06-23 | Uwe Dipl.-Ing. 4050 Mönchengladbach Andersen | Device for simultaneous measurement of wind direction and wind speed |
-
1983
- 1983-09-26 DE DE19833334819 patent/DE3334819A1/en not_active Withdrawn
-
1984
- 1984-09-12 DE DE8484110887T patent/DE3468534D1/en not_active Expired
- 1984-09-12 EP EP84110887A patent/EP0137338B1/en not_active Expired
- 1984-09-12 AT AT84110887T patent/ATE31823T1/en not_active IP Right Cessation
- 1984-09-14 YU YU01593/84A patent/YU159384A/en unknown
- 1984-09-25 DK DK458784A patent/DK166974B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0137338B1 (en) | 1988-01-07 |
| YU159384A (en) | 1989-06-30 |
| DE3334819A1 (en) | 1985-04-04 |
| EP0137338A2 (en) | 1985-04-17 |
| DK458784A (en) | 1985-03-27 |
| DK166974B1 (en) | 1993-08-09 |
| DE3468534D1 (en) | 1988-02-11 |
| ATE31823T1 (en) | 1988-01-15 |
| EP0137338A3 (en) | 1985-06-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |