JPS5451876A - Correlation velocity-flow meter - Google Patents
Correlation velocity-flow meterInfo
- Publication number
- JPS5451876A JPS5451876A JP11835377A JP11835377A JPS5451876A JP S5451876 A JPS5451876 A JP S5451876A JP 11835377 A JP11835377 A JP 11835377A JP 11835377 A JP11835377 A JP 11835377A JP S5451876 A JPS5451876 A JP S5451876A
- Authority
- JP
- Japan
- Prior art keywords
- measured
- fluid
- signals
- ultrasonic
- phase
- 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
Landscapes
- Measuring Volume Flow (AREA)
Abstract
PURPOSE: To achieve the stabilization of measurement operation and the simplification of constitution by using the phase difference demodulation signals of two detection signals.
CONSTITUTION: Two sets of ultrasonic transmitters-receivers 21-31, 22-32 are disposed in the positions of different flow directions of piping 1 in which the fluid being measured flows, and are connected to a correlator 6 via phase modulator 50. Then, the ultrasonic wave signals which have been emitted to the fluid being measured from the ultrasonic transmitters 21, 22 having been driven by the signals from an oscillator 4 and have been received in the ultrasonic receives 31, 32 are demodulated of phase differences with a phase demodulator 50, and are then inputted to the correlator 6, from which the autocorrelation signals are outputted and the velocity or rate of flow of the fluid being measured is thereby measured. Hence, the measurement results free from the effects of the temperature change or inside pressure variations of the fluid being measured or the vibrations of the piping are obtained
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11835377A JPS5451876A (en) | 1977-09-30 | 1977-09-30 | Correlation velocity-flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11835377A JPS5451876A (en) | 1977-09-30 | 1977-09-30 | Correlation velocity-flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5451876A true JPS5451876A (en) | 1979-04-24 |
Family
ID=14734588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11835377A Pending JPS5451876A (en) | 1977-09-30 | 1977-09-30 | Correlation velocity-flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5451876A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0232264A (en) * | 1988-07-21 | 1990-02-02 | Yokogawa Medical Syst Ltd | Double doppler correlation current meter |
| JP2013092504A (en) * | 2011-10-27 | 2013-05-16 | Toyota Motor Corp | Method and device for measuring flow rate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5016567A (en) * | 1973-05-07 | 1975-02-21 |
-
1977
- 1977-09-30 JP JP11835377A patent/JPS5451876A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5016567A (en) * | 1973-05-07 | 1975-02-21 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0232264A (en) * | 1988-07-21 | 1990-02-02 | Yokogawa Medical Syst Ltd | Double doppler correlation current meter |
| JPH0640101B2 (en) * | 1988-07-21 | 1994-05-25 | 横河メディカルシステム株式会社 | Doppler correlation anemometer |
| JP2013092504A (en) * | 2011-10-27 | 2013-05-16 | Toyota Motor Corp | Method and device for measuring flow rate |
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