JPS56115919A - Ultrasonic current meter for high temperature - Google Patents
Ultrasonic current meter for high temperatureInfo
- Publication number
- JPS56115919A JPS56115919A JP1793080A JP1793080A JPS56115919A JP S56115919 A JPS56115919 A JP S56115919A JP 1793080 A JP1793080 A JP 1793080A JP 1793080 A JP1793080 A JP 1793080A JP S56115919 A JPS56115919 A JP S56115919A
- Authority
- JP
- Japan
- Prior art keywords
- elements
- piping
- ultrasonic
- high temperature
- fluid
- 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.)
- Pending
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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To obtain the ultrasonic current meter for high temperature which is of high precision and with little false measurement by a method wherein ultrasonic elements having Curie point at high temperature are fitted to piping so as to contact directly with the fluid to be measured. CONSTITUTION:To the piping 11 wherethrough the fluid 12 to be measured flows are fixed the ultrasonic elements 10a, 10a', 10b and 10b' composed of acoustic transducing elements whose Curie point is 1,000 deg.C or above in such a manner that the central axes thereof accord with each other and that the distance between the tip surfaces of the elements 10a, 10a' and 10b, 10b' is equal. Since a ring-shaped body 14 supporting the ultrasonic elements 10a, 10a', 10b and 10b' is faced and welded with a ring-shaped body 13 projected from the piping 11 so that the tip of the body 14 contacts directly with the fluid 12 to be measured as shown in the figure, the ultrasonic elements 10a, 10a', 10b and 10b' can be prevented from attenuation due to reflections of the piping, the elements or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1793080A JPS56115919A (en) | 1980-02-18 | 1980-02-18 | Ultrasonic current meter for high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1793080A JPS56115919A (en) | 1980-02-18 | 1980-02-18 | Ultrasonic current meter for high temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56115919A true JPS56115919A (en) | 1981-09-11 |
Family
ID=11957478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1793080A Pending JPS56115919A (en) | 1980-02-18 | 1980-02-18 | Ultrasonic current meter for high temperature |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56115919A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000026618A1 (en) * | 1998-11-03 | 2000-05-11 | D-Flow Group Ab | Device for temperature compensation in an acoustic flow meter |
| WO2020049893A1 (en) * | 2018-09-03 | 2020-03-12 | パナソニックＩｐマネジメント株式会社 | Ultrasonic flowmeter |
-
1980
- 1980-02-18 JP JP1793080A patent/JPS56115919A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000026618A1 (en) * | 1998-11-03 | 2000-05-11 | D-Flow Group Ab | Device for temperature compensation in an acoustic flow meter |
| US6532828B1 (en) | 1998-11-03 | 2003-03-18 | D-Flow Group Ab | Device for temperature compensation in an acoustic flow meter |
| WO2020049893A1 (en) * | 2018-09-03 | 2020-03-12 | パナソニックＩｐマネジメント株式会社 | Ultrasonic flowmeter |
| JP2020038065A (en) * | 2018-09-03 | 2020-03-12 | パナソニックＩｐマネジメント株式会社 | Ultrasonic flowmeter |
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