JPS5589756A - Direction identifying unit for fluid - Google Patents
Direction identifying unit for fluidInfo
- Publication number
- JPS5589756A JPS5589756A JP16108878A JP16108878A JPS5589756A JP S5589756 A JPS5589756 A JP S5589756A JP 16108878 A JP16108878 A JP 16108878A JP 16108878 A JP16108878 A JP 16108878A JP S5589756 A JPS5589756 A JP S5589756A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- vortex
- discriminating
- reception
- karman
- 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.)
- Granted
Links
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
PURPOSE: To enable to identify the direction of flow of the fluid, by providing the two sets of Kalman's vortex producing units in fluid, and discriminating the phase of the Karman's vortex signal received with the two sets of reception transducers.
CONSTITUTION: Fluid flows in the tube 1 toward the arrow A or B. In this case, the ultrasonic beam 7 emitted from the transmission transducer 6 is modulated at the Karman vortex street 4 up and down, received with the reception transducers 8, 9, and converted into electric signal from audio signal. The output signal from the reception transducers 8, 9 is respectively demodulated at the detectors 10, 11, and shaped at the wave shape circuits 12, 13. Further, the both signals having the phase difference are fed to the phase discrimination circuit 14 consisting of D type FF from the wave shape circuits 12, 13. The phase difference is represented as Δθ= 2πL/l. Where: L is the distance between the reception transistors 8 and 9, and l is the distance between the centers of Karman vortex. By discriminating the said both signals at the discriminating circuit 14, the flow of fluid can be identified.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53161088A JPS5853309B2 (en) | 1978-12-28 | 1978-12-28 | Fluid direction identification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53161088A JPS5853309B2 (en) | 1978-12-28 | 1978-12-28 | Fluid direction identification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5589756A true JPS5589756A (en) | 1980-07-07 |
| JPS5853309B2 JPS5853309B2 (en) | 1983-11-28 |
Family
ID=15728378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53161088A Expired JPS5853309B2 (en) | 1978-12-28 | 1978-12-28 | Fluid direction identification device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5853309B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836980A (en) * | 2018-08-15 | 2020-02-25 | 西卡西伯特博士及屈恩有限及两合公司 | Device and method for determining the flow velocity of a fluid in a hollow body |
-
1978
- 1978-12-28 JP JP53161088A patent/JPS5853309B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836980A (en) * | 2018-08-15 | 2020-02-25 | 西卡西伯特博士及屈恩有限及两合公司 | Device and method for determining the flow velocity of a fluid in a hollow body |
| CN110836980B (en) * | 2018-08-15 | 2021-12-07 | 西卡西伯特博士及屈恩有限及两合公司 | Device and method for determining the flow velocity of a fluid in a hollow body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5853309B2 (en) | 1983-11-28 |
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