JPS57108625A - Flowmeter for underground pipe - Google Patents
Flowmeter for underground pipeInfo
- Publication number
- JPS57108625A JPS57108625A JP55182809A JP18280980A JPS57108625A JP S57108625 A JPS57108625 A JP S57108625A JP 55182809 A JP55182809 A JP 55182809A JP 18280980 A JP18280980 A JP 18280980A JP S57108625 A JPS57108625 A JP S57108625A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- ultrasonic
- ultrasonic waves
- frequency shift
- receiver
- 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
- G01F1/663—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 by measuring Doppler frequency shift
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
PURPOSE:To find accurately the flow rate of fluid flowing through the line of the underground pipe by delivering ultrasonic waves from an ultrasonic transmitter on the ground surface to the underground pipe and by detecting the maximum frequency shift of the ultrasonic waves which return from the pipe by an ultrasonic receiver on the ground surface. CONSTITUTION:Attachments 2 and 3 are installed along the underground pipe 1 and the ultrasonic transmitter 4 is fitted to the attachment 2, while the ultrasonic receiver 5 is fitted to the attachment 3. Moreover, the receiver 5 is provided with a processing part (not shown in the figure) conducting operational processing of signals received. When ultrasonic waves are emitted from the transmitter 4 to the pipe, the ultrasonic waves passing through the ground are scattered by alien substances in the fluid flowing in the pipe 1 and subjected to frequency shift by the Doppler effect. Since this frequency shift is proportional to the velocity of the fluid flowing through the pipe 1, the maximum frequency shift out of those of the ultrasonic waves returning to the receiver 5 is detected and thereby the velocity of the fluid running through the pipe 1 is found.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55182809A JPS57108625A (en) | 1980-12-25 | 1980-12-25 | Flowmeter for underground pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55182809A JPS57108625A (en) | 1980-12-25 | 1980-12-25 | Flowmeter for underground pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57108625A true JPS57108625A (en) | 1982-07-06 |
Family
ID=16124810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55182809A Pending JPS57108625A (en) | 1980-12-25 | 1980-12-25 | Flowmeter for underground pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57108625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019202139A1 (en) * | 2018-04-20 | 2019-10-24 | Universite Du Mans | Ultrasonic anemometer |
-
1980
- 1980-12-25 JP JP55182809A patent/JPS57108625A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019202139A1 (en) * | 2018-04-20 | 2019-10-24 | Universite Du Mans | Ultrasonic anemometer |
| FR3080455A1 (en) * | 2018-04-20 | 2019-10-25 | Universite Du Mans | ULTRASOUND ANEMOMETER |
| CN112166329A (en) * | 2018-04-20 | 2021-01-01 | 勒芒大学 | Ultrasonic airspeed indicator |
| US11614460B2 (en) | 2018-04-20 | 2023-03-28 | Universite Du Mans | Ultrasound air-speed indicator |
| CN112166329B (en) * | 2018-04-20 | 2023-04-14 | 勒芒大学 | Ultrasonic airspeed indicator |
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