JPS5527938A - Ultrasonic wave flow meter - Google Patents
Ultrasonic wave flow meterInfo
- Publication number
- JPS5527938A JPS5527938A JP10089978A JP10089978A JPS5527938A JP S5527938 A JPS5527938 A JP S5527938A JP 10089978 A JP10089978 A JP 10089978A JP 10089978 A JP10089978 A JP 10089978A JP S5527938 A JPS5527938 A JP S5527938A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- time variable
- delay time
- ultrasonic wave
- 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 provide the subject meter wherein the correlation between a signal applied to a sender and a signal received by a receiver is utilized thereby to improve the measuring accuracy of the meter. CONSTITUTION:A delay time variable circuit 25 is connected to an oscillator 19 and a ultrasonic receiver 23 is connected through an amplifier 24, a difference operation circuit 26 and a minimum value detection circuit 27 to a delay time variable circuit 25. As a result, a sending signal from the oscillator 19 is supplied as input to the delay time variable circuit 25 and also to a ultrasonic wave sender 20, and a generated ultrasonic wave is propagated in the fluid 22 and received by the ultrasonic wave receiver 23, thus being amplified. Thereafter, the difference between said signal and a delay sending signal from the delayd time variable circuit 25 is calculated, and a minimum value is detected by a minimum detection circuit 27 and supplied as input to the delay time variable circuit 25 as a variable time control signal, the delay time variable controlled by the control signal being operated into a flow quantity signal at a flow quantity operating circuit 28 and indicated in an indicator 29.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10089978A JPS5527938A (en) | 1978-08-21 | 1978-08-21 | Ultrasonic wave flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10089978A JPS5527938A (en) | 1978-08-21 | 1978-08-21 | Ultrasonic wave flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5527938A true JPS5527938A (en) | 1980-02-28 |
Family
ID=14286180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10089978A Pending JPS5527938A (en) | 1978-08-21 | 1978-08-21 | Ultrasonic wave flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5527938A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61104224A (en) * | 1984-10-29 | 1986-05-22 | Tokyo Keiki Co Ltd | Time difference type ultrasonic flowmeter |
| JPH05246286A (en) * | 1992-03-04 | 1993-09-24 | Gokou Seisakusho:Kk | Water closet apparatus for vehicle |
| JPWO2005083370A1 (en) * | 2004-02-26 | 2007-11-22 | 富士電機システムズ株式会社 | Ultrasonic flow meter and ultrasonic flow measuring method |
| US9874466B2 (en) | 2011-03-18 | 2018-01-23 | Reliance Worldwide Corporation | Methods and apparatus for ultrasonic fluid flow measurement and fluid flow data analysis |
-
1978
- 1978-08-21 JP JP10089978A patent/JPS5527938A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61104224A (en) * | 1984-10-29 | 1986-05-22 | Tokyo Keiki Co Ltd | Time difference type ultrasonic flowmeter |
| JPH0535364B2 (en) * | 1984-10-29 | 1993-05-26 | Tokimec Inc | |
| JPH05246286A (en) * | 1992-03-04 | 1993-09-24 | Gokou Seisakusho:Kk | Water closet apparatus for vehicle |
| JPWO2005083370A1 (en) * | 2004-02-26 | 2007-11-22 | 富士電機システムズ株式会社 | Ultrasonic flow meter and ultrasonic flow measuring method |
| JP4544247B2 (en) * | 2004-02-26 | 2010-09-15 | 富士電機システムズ株式会社 | Ultrasonic flow meter and ultrasonic flow measurement method |
| US9874466B2 (en) | 2011-03-18 | 2018-01-23 | Reliance Worldwide Corporation | Methods and apparatus for ultrasonic fluid flow measurement and fluid flow data analysis |
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