DE69026777T2 - Mit Magnetfeldern unterschiedlicher Frequenz arbeitender elektromagnetischer Durchflussmesser - Google Patents
Mit Magnetfeldern unterschiedlicher Frequenz arbeitender elektromagnetischer DurchflussmesserInfo
- Publication number
- DE69026777T2 DE69026777T2 DE69026777T DE69026777T DE69026777T2 DE 69026777 T2 DE69026777 T2 DE 69026777T2 DE 69026777 T DE69026777 T DE 69026777T DE 69026777 T DE69026777 T DE 69026777T DE 69026777 T2 DE69026777 T2 DE 69026777T2
- Authority
- DE
- Germany
- Prior art keywords
- flow meter
- magnetic fields
- different frequencies
- electromagnetic flow
- meter working
- 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.)
- Expired - Lifetime
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
- G01F1/56—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 electric or magnetic effects
- G01F1/58—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 electric or magnetic effects by electromagnetic 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
- G01F1/56—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 electric or magnetic effects
- G01F1/58—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 electric or magnetic effects by electromagnetic flowmeters
- G01F1/586—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 electric or magnetic effects by electromagnetic flowmeters constructions of coils, magnetic circuits, accessories therefor
-
- 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
- G01F1/56—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 electric or magnetic effects
- G01F1/58—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 electric or magnetic effects by electromagnetic flowmeters
- G01F1/60—Circuits therefor
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1231896A JPH0394121A (ja) | 1989-09-07 | 1989-09-07 | 電磁流量計 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69026777D1 DE69026777D1 (de) | 1996-06-05 |
DE69026777T2 true DE69026777T2 (de) | 1997-01-23 |
Family
ID=16930737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69026777T Expired - Lifetime DE69026777T2 (de) | 1989-09-07 | 1990-09-04 | Mit Magnetfeldern unterschiedlicher Frequenz arbeitender elektromagnetischer Durchflussmesser |
Country Status (5)
Country | Link |
---|---|
US (1) | US5090250A (de) |
EP (1) | EP0416866B1 (de) |
JP (1) | JPH0394121A (de) |
KR (1) | KR930007114B1 (de) |
DE (1) | DE69026777T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012006891A1 (de) * | 2012-04-05 | 2013-10-10 | Krohne Ag | Magnetisch-induktives Durchflussmessgerät |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5307688A (en) * | 1990-12-24 | 1994-05-03 | The United States Of America As Represented By The Secretary Of The Navy | Method and flowmeter for unsteady fluid flow study |
US5289725A (en) * | 1991-07-31 | 1994-03-01 | The Foxboro Company | Monolithic flow tube with improved dielectric properties for use with a magnetic flowmeter |
EP0543053B1 (de) * | 1991-11-22 | 1995-07-19 | Fischer & Porter GmbH | Schaltungsanordnung für eine Vorrichtung zur Messung der Stärke des Stroms einer elektrische Ladungen enthaltenden Flüssigkeit |
JPH05172601A (ja) * | 1991-12-20 | 1993-07-09 | Toshiba Corp | 電磁流量計 |
US5417119A (en) * | 1994-01-07 | 1995-05-23 | Smoll; Owen C. | Dual electromagnet partially disposable fluid flow transducer with side-by-side electrodes |
US5450758A (en) * | 1994-09-23 | 1995-09-19 | Smoll; Owen C. | Bioprobe replacement sensor and transducer |
US5564420A (en) * | 1995-04-14 | 1996-10-15 | Minnesota Mining And Manufacturing Company | Medical device with EMI detection and cancellation |
GB2333366A (en) * | 1998-01-17 | 1999-07-21 | Caledonian Control Technology | Encapsulated electromagnetic flowmeter |
EP1202031A1 (de) * | 2000-10-24 | 2002-05-02 | Endress + Hauser Flowtec AG | Verfahren und Vorrichtung zur Prozessüberwachung bei einem magnetisch-induktiven Sensor |
GB2380798A (en) * | 2001-07-02 | 2003-04-16 | Abb Automation Ltd | Electromagnetic flowmeter |
DE102004018078B3 (de) * | 2004-04-08 | 2006-01-05 | Krohne Meßtechnik GmbH & Co KG | Verfahren zum Betreiben eines magnetisch-induktiven Durchflussmessgeräts |
DE102004031636B4 (de) * | 2004-06-30 | 2009-03-19 | Abb Ag | Verfahren und Einrichtung zum Betrieb einer induktiven Durchflussmesseinrichtung |
US7073393B2 (en) * | 2004-11-01 | 2006-07-11 | Rosemount Inc. | Magnetic flowmeter with built-in simulator |
JP4592405B2 (ja) * | 2004-12-06 | 2010-12-01 | 愛知時計電機株式会社 | 電磁流速センサ |
US7798015B2 (en) * | 2005-05-16 | 2010-09-21 | Endress + Hauser Flowtec Ag | Magneto-inductive flowmeter and measuring tube for such |
JP4754932B2 (ja) * | 2005-10-17 | 2011-08-24 | 株式会社山武 | 電磁流量計 |
JP5163852B2 (ja) * | 2007-03-13 | 2013-03-13 | 横河電機株式会社 | 電磁流量計とそのゼロ点測定方法 |
US7688057B2 (en) * | 2007-07-10 | 2010-03-30 | Rosemount Inc. | Noise diagnosis of operating conditions for an electromagnetic flowmeter |
US8245580B2 (en) * | 2009-10-02 | 2012-08-21 | Rosemount Inc. | Compliant coil form |
US8136410B2 (en) * | 2010-01-06 | 2012-03-20 | Mccrometer, Inc. | Sensor assembly for a fluid flowmeter |
US9182258B2 (en) * | 2011-06-28 | 2015-11-10 | Rosemount Inc. | Variable frequency magnetic flowmeter |
DE202013007140U1 (de) * | 2013-08-09 | 2013-08-27 | Abb Technology Ag | Magnetisch-induktiver Durchflussmesser |
JP2015087157A (ja) * | 2013-10-29 | 2015-05-07 | 株式会社東芝 | 電磁流量計 |
JP2015105929A (ja) * | 2013-12-02 | 2015-06-08 | 株式会社東芝 | 電磁流量計 |
US10641627B2 (en) * | 2013-12-20 | 2020-05-05 | Rosemount Inc. | Magnetic flowmeter with automatic operating setpoint selection |
CN105371906B (zh) * | 2014-08-29 | 2020-10-13 | 桓达科技股份有限公司 | 具有变频式液体导电度测量功能的电磁式流量计 |
CN104266692A (zh) * | 2014-10-21 | 2015-01-07 | 中山欧麦克仪器设备有限公司 | 双激励电磁流量计 |
CN104807511B (zh) * | 2015-03-23 | 2018-09-28 | 广东新大禹环境科技股份有限公司 | 一种管道流量计 |
CN106017584A (zh) * | 2016-07-22 | 2016-10-12 | 无锡信大气象传感网科技有限公司 | 基于滤波电路及电源管理器的液体体积流量监控系统 |
US10557730B2 (en) | 2017-06-22 | 2020-02-11 | Saudi Arabian Oil Company | Alternating magnetic field flow meters with embedded quality assurance and control |
US10330511B2 (en) | 2017-06-22 | 2019-06-25 | Saudi Arabian Oil Company | Alternating magnetic field flow meters |
KR102098828B1 (ko) * | 2019-02-20 | 2020-04-08 | 신동아전자(주) | 유체진동형 유량계 |
US11341830B2 (en) | 2020-08-06 | 2022-05-24 | Saudi Arabian Oil Company | Infrastructure construction digital integrated twin (ICDIT) |
US11687053B2 (en) | 2021-03-08 | 2023-06-27 | Saudi Arabian Oil Company | Intelligent safety motor control center (ISMCC) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3707675A (en) * | 1970-09-11 | 1972-12-26 | Bailey Meter Co | Measuring system for comparing the relative magnitudes of first and second d.c. signals |
JPS5430066A (en) * | 1977-08-10 | 1979-03-06 | Toshiba Corp | Electromagnetic flow meter |
US4470309A (en) * | 1981-07-06 | 1984-09-11 | Tokyo Shibaura Denki Kabushiki Kaisha | Electromagnetic flowmeter |
JPS59173714A (ja) * | 1983-03-23 | 1984-10-01 | Toshiba Corp | 電磁流量計の励磁方式 |
JPS6166123A (ja) * | 1984-09-07 | 1986-04-04 | Toshiba Corp | 電磁流量計変換器 |
DE3728342A1 (de) * | 1987-08-25 | 1989-03-09 | Fischer & Porter Gmbh | Verfahren zur erzeugung eines signals, das der stromstaerke eines fliessenden, elektrisch leitenden mediums entspricht, und schaltungsanordnungen zur durchfuehrung der verfahren |
-
1989
- 1989-09-07 JP JP1231896A patent/JPH0394121A/ja active Pending
-
1990
- 1990-09-04 DE DE69026777T patent/DE69026777T2/de not_active Expired - Lifetime
- 1990-09-04 EP EP90309655A patent/EP0416866B1/de not_active Expired - Lifetime
- 1990-09-07 US US07/578,439 patent/US5090250A/en not_active Expired - Lifetime
- 1990-09-07 KR KR1019900014120A patent/KR930007114B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012006891A1 (de) * | 2012-04-05 | 2013-10-10 | Krohne Ag | Magnetisch-induktives Durchflussmessgerät |
DE102012006891B4 (de) | 2012-04-05 | 2019-05-23 | Krohne Ag | Magnetisch-induktives Durchflussmessgerät |
Also Published As
Publication number | Publication date |
---|---|
KR910006695A (ko) | 1991-04-29 |
EP0416866B1 (de) | 1996-05-01 |
US5090250A (en) | 1992-02-25 |
KR930007114B1 (ko) | 1993-07-30 |
JPH0394121A (ja) | 1991-04-18 |
EP0416866A1 (de) | 1991-03-13 |
DE69026777D1 (de) | 1996-06-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69026777T2 (de) | Mit Magnetfeldern unterschiedlicher Frequenz arbeitender elektromagnetischer Durchflussmesser | |
DE69020473D1 (de) | Verbesserungen an und im Zusammenhang mit elektromagnetischen Durchflussmessern. | |
DE69332128T2 (de) | Elektromagnetischer Durchflussmesser | |
GB8607762D0 (en) | Magnetic field intensity meter | |
DE3678909D1 (de) | Elektromagnetischer durchflussmesser mit gepulstem magnetfeld. | |
DE69026552D1 (de) | Magnetische Resonanz-Sonden | |
FR2558251B1 (fr) | Debitmetre electromagnetique | |
IT1183875B (it) | Misuratore elettromagnetico di portata | |
GB2183943B (en) | Protective circuit for the field coil of an electromagnetic flow meter | |
IT1183910B (it) | Misuratore elettromagnetico di portata | |
IT1233181B (it) | Procedimento per la misurazione magnetica induttiva di portata e misuratore di portata magnetico-induttivo | |
FI904376A0 (fi) | Sähkömagneettinen läpivirtausmittari | |
DE4390337T1 (de) | Strömungsmesser mit konzentrisch angeordnetem elektromagnetischem Feld | |
BR9206614A (pt) | Medidor de exposição a campo magnético de alta-frequência | |
IL74942A0 (en) | Flow measurement using nuclear magnetic resonance | |
FR2649536B1 (fr) | Detecteur d'ondes electromagnetiques | |
GB2200458B (en) | Electromagnetic flowmeter with alternating permanent magnet field | |
EP0240221A3 (en) | Measuring magnetic fields using nmr principles | |
DE3569028D1 (en) | Radial field electromagnetic flow meter | |
DE69227096D1 (de) | Magnetische Kernresonanz-Sonde mit Hochfrequenz-Abschirmung der Sonde. | |
GB2161268B (en) | Measurement of magnetic fields | |
DE69226378T2 (de) | Magnetisch induktiver durchflussmesser mit verbesserter messgelegenheit | |
FR2646920B1 (fr) | Dispositif pour la production de champs magnetiques possedant une composante a gradient constant | |
IT1232302B (it) | Misuratore di campo elettrico o magnetico | |
DK569083D0 (da) | Elektromagnetisk gennemstroemningsmaaler |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de | ||
8370 | Indication of lapse of patent is to be deleted | ||
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) |