DE3542704C2 - - Google Patents
Info
- Publication number
- DE3542704C2 DE3542704C2 DE19853542704 DE3542704A DE3542704C2 DE 3542704 C2 DE3542704 C2 DE 3542704C2 DE 19853542704 DE19853542704 DE 19853542704 DE 3542704 A DE3542704 A DE 3542704A DE 3542704 C2 DE3542704 C2 DE 3542704C2
- Authority
- DE
- Germany
- Prior art keywords
- value
- carrier frequency
- pulse
- time
- computer
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 27
- 230000006870 function Effects 0.000 claims description 21
- 238000002604 ultrasonography Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 238000011156 evaluation Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 31
- 238000005070 sampling Methods 0.000 description 8
- 239000008236 heating water Substances 0.000 description 7
- 230000001419 dependent effect Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH4854/85A CH660008A5 (de) | 1984-11-22 | 1985-11-12 | Pharmazeutisches mittel, enthaltend isosilybinfreies silibinin, und verfahren zur herstellung von isosilybinfreiem silibinin. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3542704A1 DE3542704A1 (de) | 1986-07-03 |
| DE3542704C2 true DE3542704C2 (enrdf_load_stackoverflow) | 1987-11-26 |
Family
ID=4283703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853542704 Granted DE3542704A1 (de) | 1985-11-12 | 1985-12-03 | Verfahren und einrichtung zur temperaturunabhaengigen messung einer mittleren stroemungsgeschwindigkeit einer fluessigkeit |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3542704A1 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012111427A1 (de) * | 2012-11-26 | 2014-05-28 | Endress + Hauser Flowtec Ag | Feldgerät, insbesondere Ultraschall-Durchflussmessgerät |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3120541A1 (de) * | 1980-05-28 | 1982-12-23 | Siemens AG, 1000 Berlin und 8000 München | Verbesserung eines durchfluss-stroemungsmessers mit ultraschall |
-
1985
- 1985-12-03 DE DE19853542704 patent/DE3542704A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3542704A1 (de) | 1986-07-03 |
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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 |