JPS5667716A - Ultrasonic flow meter - Google Patents
Ultrasonic flow meterInfo
- Publication number
- JPS5667716A JPS5667716A JP14435479A JP14435479A JPS5667716A JP S5667716 A JPS5667716 A JP S5667716A JP 14435479 A JP14435479 A JP 14435479A JP 14435479 A JP14435479 A JP 14435479A JP S5667716 A JPS5667716 A JP S5667716A
- Authority
- JP
- Japan
- Prior art keywords
- group
- vibrator
- flow
- vibrators
- ultrasonic
- 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 accurately measure the velocity and rate of flow of a medium without the need for making cavities in the wall of a flow measuring tube by using the first ultrasonic vibrator group arranged on the tube wall at equal distances and the second ultrosonic vibrator group provided facing to the first group.
CONSTITUTION: On the wall of a flow measuring tube 31, a group of vibrators 32 placed at distances (d) and another group of vibrators 33 similarly placed at distances (d) are arranged so that the normals of the vibrator surfaces of the two groups 32 and 33 are parallel to each other but the centers cross the normals obliquely. When ultrasonic pulse signals are emitted from the group of vibrators 32 driven by a vibrator-driving circuit 34, the directivity of the ultrasonic beam is maximum at a certain angle with respect to the normal direction of the arranged vibrator group because at said angle the ultrasonic wave phases agree with each other, and the signals having been affected by the flow of a propagation medium are received by the group of vibrators 33. Measuring the time difference between the drive and the reception by using a time-measuring circuit 36 permits the velocity and rate of flow of the medium to be known.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14435479A JPS5667716A (en) | 1979-11-09 | 1979-11-09 | Ultrasonic flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14435479A JPS5667716A (en) | 1979-11-09 | 1979-11-09 | Ultrasonic flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5667716A true JPS5667716A (en) | 1981-06-08 |
Family
ID=15360148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14435479A Pending JPS5667716A (en) | 1979-11-09 | 1979-11-09 | Ultrasonic flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5667716A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011004668A1 (en) | 2010-03-01 | 2011-09-01 | Denso Corporation | Ultrasonic flowmeter |
-
1979
- 1979-11-09 JP JP14435479A patent/JPS5667716A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011004668A1 (en) | 2010-03-01 | 2011-09-01 | Denso Corporation | Ultrasonic flowmeter |
| US8613226B2 (en) | 2010-03-01 | 2013-12-24 | Denso Corporation | Ultrasonic flow meter having ultrasonic sensor with plurality of transmitters for transmitting ultrasonic waves at different frequencies |
| DE102011004668B4 (en) | 2010-03-01 | 2020-08-06 | Denso Corporation | Ultrasonic flow meter |
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