JPS5516253A - Pulse system ultrasonic-wave doppler current meter - Google Patents
Pulse system ultrasonic-wave doppler current meterInfo
- Publication number
- JPS5516253A JPS5516253A JP8903778A JP8903778A JPS5516253A JP S5516253 A JPS5516253 A JP S5516253A JP 8903778 A JP8903778 A JP 8903778A JP 8903778 A JP8903778 A JP 8903778A JP S5516253 A JPS5516253 A JP S5516253A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- pipe
- waves
- points
- angle
- 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
- Measuring Volume Flow (AREA)
Abstract
PURPOSE:To measure a flow rate high accurate with rapid response, by permeating an outer wall of a pipe by utilizing a fact that direct-wave signals and scattering reflected signals are similar to transmitting signals emitted into a fluid in wave- forms. CONSTITUTION:Ultrasonic-wave pulses emitted from a trembler 42 are projected to an outer wall 40 of a pipe from a wedge 43 at an angle of incidence phi1, advance in a pipe wall at an angle of refraction phi2, is projected to a fluid at an angle of incidence phi2 at a point A and move on in the fluid at an angle of refraction phi. Scattering reflected waves are produced when ultrasonic waves collide with particles flowing at the same speed as the fluid, but points 1.1, 1.2,... function as points that give receiving waves with excellent efficiency, and reflected waves from these all points are received when using ultrasonic waves consisting of continuous waves. Generally speaking, the speed of a fluid flowing in a pipe is fast at the center of the pipe and becomes later the nearer a pipe wall is, but scattering reflected waves from the points 1.1 and 1.2 or 2.1 are separated and received because ultrasonic waves with narrow pulse width are used at that time, thus measuring a flow rate of the fluid accurately, rapidly and high precise.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53089037A JPS6042405B2 (en) | 1978-07-21 | 1978-07-21 | Pulsed ultrasonic Doppler current meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53089037A JPS6042405B2 (en) | 1978-07-21 | 1978-07-21 | Pulsed ultrasonic Doppler current meter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5516253A true JPS5516253A (en) | 1980-02-04 |
JPS6042405B2 JPS6042405B2 (en) | 1985-09-21 |
Family
ID=13959685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53089037A Expired JPS6042405B2 (en) | 1978-07-21 | 1978-07-21 | Pulsed ultrasonic Doppler current meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6042405B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2399879A (en) * | 2003-02-25 | 2004-09-29 | Otsuka Denshi Kk | Electrophoretic mobility measuring apparatus |
JP2005351828A (en) * | 2004-06-14 | 2005-12-22 | Fuji Electric Systems Co Ltd | Wedge unit used for doppler ultrasound flowmeter |
JP2005351827A (en) * | 2004-06-14 | 2005-12-22 | Fuji Electric Systems Co Ltd | Wedge used for doppler ultrasound flowmeter, and wedge unit |
CN109141556A (en) * | 2018-08-31 | 2019-01-04 | 浙江启尔机电技术有限公司 | A kind of embedded broad beam ultrasonic liquid flow measurement device of piezoelectric vibrator |
-
1978
- 1978-07-21 JP JP53089037A patent/JPS6042405B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2399879A (en) * | 2003-02-25 | 2004-09-29 | Otsuka Denshi Kk | Electrophoretic mobility measuring apparatus |
GB2399879B (en) * | 2003-02-25 | 2006-02-15 | Otsuka Denshi Kk | Electrophoretic mobility measuring apparatus |
US7449097B2 (en) | 2003-02-25 | 2008-11-11 | Otsuka Electronics Co., Ltd. | Electrophoretic mobility measuring apparatus |
JP2005351828A (en) * | 2004-06-14 | 2005-12-22 | Fuji Electric Systems Co Ltd | Wedge unit used for doppler ultrasound flowmeter |
JP2005351827A (en) * | 2004-06-14 | 2005-12-22 | Fuji Electric Systems Co Ltd | Wedge used for doppler ultrasound flowmeter, and wedge unit |
CN109141556A (en) * | 2018-08-31 | 2019-01-04 | 浙江启尔机电技术有限公司 | A kind of embedded broad beam ultrasonic liquid flow measurement device of piezoelectric vibrator |
CN109141556B (en) * | 2018-08-31 | 2020-08-04 | 浙江启尔机电技术有限公司 | Piezoelectric vibrator embedded type wide-beam ultrasonic liquid flow measuring device |
Also Published As
Publication number | Publication date |
---|---|
JPS6042405B2 (en) | 1985-09-21 |
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