KR900010357A - 카르먼 와류량계 - Google Patents
카르먼 와류량계 Download PDFInfo
- Publication number
- KR900010357A KR900010357A KR1019890017976A KR890017976A KR900010357A KR 900010357 A KR900010357 A KR 900010357A KR 1019890017976 A KR1019890017976 A KR 1019890017976A KR 890017976 A KR890017976 A KR 890017976A KR 900010357 A KR900010357 A KR 900010357A
- Authority
- KR
- South Korea
- Prior art keywords
- ultrasonic
- transmitter
- conduit wall
- conduit
- fluid
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/662—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
- G01F1/325—Means for detecting quantities used as proxy variables for swirl
- G01F1/3282—Means for detecting quantities used as proxy variables for swirl for detecting variations in infrasonic, sonic or ultrasonic waves, due to modulation by passing through the swirling fluid
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 이 발명의 한 실시예에 의한 카르먼 와류량계의 횡단면도, 제3도는 이 발명의 다른 실시예에 의한 카르먼 와류량계의 횡단면도, 제4도는 이 발명의 또 다른 실시예에 의한 카르먼 와류량계의 전체 구성도이다.
Claims (2)
- 피측정유체가 흐르는 도관내에 이 유체의 흐름과 직교하여 배치된 와류발생주와, 이 와류발생주의 하류측 도관벽에 설치하여 초음파를 동시에 발신하는 복수의 초음파 송신기와, 이 송신기에 대향하는 도관벽부분에 설치한 초음파수신기를 구비한 것을 특징으로 하는 카르먼와류량계.
- 피측정체가 흐르는 도관내에 이 유체의 흐름과 직교하여 배치된 와류발생주와, 이 와류발생주의 하류측 도관벽에 설치한 제1초음파 송신기와, 이 제1송신기보다 약간 하류측 도관벽에 설치한 제2초음파 송신기와, 제2송신기에 대향하는 도관벽에 설치한 초음파 수신기와, 상기 제1 및 제2의 초음파 송신기를 절환하는 절환수단을 구비한 것을 특징으로 하는 카르먼와류량계.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15822388U JPH0279424U (ko) | 1988-12-05 | 1988-12-05 | |
JP63-307223 | 1988-12-05 | ||
JP63307223A JPH02151725A (ja) | 1988-12-05 | 1988-12-05 | カルマン渦流量計 |
JP63-158223 | 1988-12-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900010357A true KR900010357A (ko) | 1990-07-07 |
KR930001728B1 KR930001728B1 (ko) | 1993-03-12 |
Family
ID=26485424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890017976A KR930001728B1 (ko) | 1988-12-05 | 1989-12-05 | 카르먼 와류량계 |
Country Status (4)
Country | Link |
---|---|
US (1) | US4970902A (ko) |
KR (1) | KR930001728B1 (ko) |
DE (1) | DE3940065A1 (ko) |
GB (1) | GB2226409B (ko) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4341475A1 (de) * | 1993-12-02 | 1995-06-08 | Ver Energiewerke Ag | Anordnung von in-situ-Analysegeräten und Kalibrierstutzen zur Messung von Emissionen im Abgaskanal einer Verbrennungsanlage |
DE4413078A1 (de) * | 1994-04-15 | 1995-10-19 | Bosch Gmbh Robert | Einrichtung zur Erfassung einer pulsierenden Größe |
DE4413525C2 (de) * | 1994-04-15 | 1996-09-26 | Inst Bioprozess Analysenmesst | Staubprobenahmegerät |
FR2721398B1 (fr) * | 1994-06-21 | 1996-08-23 | Inst Francais Du Petrole | Procédé et dispositif pour surveiller par excitation périodique un flux de particules dans un conduit. |
US5560220A (en) * | 1995-09-01 | 1996-10-01 | Ecr Technologies, Inc. | Method for testing an earth tap heat exchanger and associated apparatus |
US5728947A (en) * | 1996-06-12 | 1998-03-17 | Asahi/America, Inc. | Ultrasonic vortex flowmeter having clamp-on housing |
US6053053A (en) * | 1998-03-13 | 2000-04-25 | Rosemount Inc. | Multiple vortex flowmeter system |
DE20309788U1 (de) * | 2003-06-24 | 2004-11-04 | Bürkert Werke GmbH & Co. KG | Durchflussmesser nach dem Vortex-Prinzip |
GB2447691B (en) * | 2007-03-23 | 2009-10-28 | Schlumberger Holdings | Flow measuring apparatus and method |
EP2350574B1 (en) * | 2008-10-29 | 2013-01-09 | Rosemount Inc. | Vortex flowmeter body with a groove in the backward facing surface |
DE102010043781A1 (de) * | 2009-11-19 | 2012-01-19 | Endress + Hauser Flowtec Ag | Messgerät |
IT1403422B1 (it) * | 2010-12-23 | 2013-10-17 | Sidel Spa Con Socio Unico | Sistema e metodo di riempimento di un contenitore con un prodotto versabile |
US8683873B1 (en) * | 2011-09-19 | 2014-04-01 | Onicon, Inc. | Phase detector for a vortex flowmeter using ultrasonic transducers connected to separate transformers for phase detection |
US8408071B1 (en) | 2011-09-19 | 2013-04-02 | Onicon Inc. | Enhanced vortex-shedding flowmeter |
US8813575B2 (en) | 2012-06-12 | 2014-08-26 | Honeywell Internation Inc. | Ultrasonic flow sensor and method |
US8806958B2 (en) * | 2012-07-05 | 2014-08-19 | Honeywell International Inc. | Ultrasonic air flow sensor |
DE102016116072B4 (de) | 2016-08-29 | 2022-06-02 | Endress + Hauser Flowtec Ag | Verfahren zur Erkennung von Fremdkörpern bei einem magnetisch-induktiven Durchflussmessgerät, ein magnetisch-induktives Durchflussmessgerät, eine Anordnung mit einem magnetisch-induktiven Durchflussmessgerät und eine Abfüllanlage mit einer Anordnung |
DE102016116070A1 (de) | 2016-08-29 | 2018-03-01 | Endress + Hauser Flowtec Ag | Verfahren zur Erkennung von Fremdkörpern bei einem Vortex-Durchflussmessgerät, ein Vortex-Durchflussmessgerät, eine Anordnung mit einem Vortex-Durchflussmessgerät und eine Abfüllanlage mit einer Anordnung |
CN106441471A (zh) * | 2016-10-14 | 2017-02-22 | 青岛海威茨仪表有限公司 | 一种大口径超声波流量计 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE787873A (fr) * | 1971-08-27 | 1973-02-23 | Westinghouse Electric Corp | Debitmetre |
US3886794A (en) * | 1974-03-11 | 1975-06-03 | Westinghouse Electric Corp | Flowmeter apparatus and method |
US3965730A (en) * | 1975-04-28 | 1976-06-29 | Ford Motor Company | Vortex shedding device for use in measuring air flow rate into an internal combustion engine |
GB1569125A (en) * | 1976-02-19 | 1980-06-11 | Ici Ltd | Vortex detection |
DE2858092C2 (de) * | 1977-11-04 | 1985-01-17 | Mitsubishi Denki K.K. | Anordnung zur Messung des Strömungsmitteldurchsatzes durch eine Leitung |
JPS54121780A (en) * | 1978-03-14 | 1979-09-21 | Yokogawa Hokushin Electric Corp | Measuring apparatus of velocity of flow |
DE2845753C2 (de) * | 1978-10-20 | 1985-08-22 | Siemens AG, 1000 Berlin und 8000 München | Meßeinrichtung nach dem Prinzip der Karman'schen Wirbelstraße |
DE3220539A1 (de) * | 1982-06-01 | 1983-12-01 | Rota Apparate- Und Maschinenbau Dr. Hennig Gmbh & Co Kg, 7867 Wehr | Verfahren und vorrichtung zum messen des durchflusses in einer gas- oder fluessigkeits-stroemung |
US4567776A (en) * | 1982-06-30 | 1986-02-04 | Kubota Trane Ltd. | Fluid flowmeter of Karman vortex detecting type |
GB8403145D0 (en) * | 1984-02-07 | 1984-03-14 | Bestobell Meterflow Ltd | Monitoring fluid flow |
US4815324A (en) * | 1986-04-24 | 1989-03-28 | Mitsubishi Denki Kabushiki Kaisha | Intake air meter for an internal combustion engine |
DD250180A1 (de) * | 1986-06-25 | 1987-09-30 | Berlin Treptow Veb K | Stroemungsgeschwindigkeitsmesser fuer kleine rohrnennweiten |
GB2218518A (en) * | 1988-05-10 | 1989-11-15 | Scheme Engineering Ltd | Ultrasonic flow meter with welded transducer mountings |
-
1989
- 1989-11-29 GB GB8926941A patent/GB2226409B/en not_active Expired - Lifetime
- 1989-12-04 DE DE3940065A patent/DE3940065A1/de active Granted
- 1989-12-04 US US07/445,506 patent/US4970902A/en not_active Expired - Fee Related
- 1989-12-05 KR KR1019890017976A patent/KR930001728B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3940065A1 (de) | 1990-06-07 |
GB8926941D0 (en) | 1990-01-17 |
GB2226409A (en) | 1990-06-27 |
US4970902A (en) | 1990-11-20 |
DE3940065C2 (ko) | 1992-07-23 |
KR930001728B1 (ko) | 1993-03-12 |
GB2226409B (en) | 1992-12-23 |
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 19980303 Year of fee payment: 6 |
|
LAPS | Lapse due to unpaid annual fee |