PT975936E - Medidor de caudal electromagnetico - Google Patents
Medidor de caudal electromagneticoInfo
- Publication number
- PT975936E PT975936E PT98917463T PT98917463T PT975936E PT 975936 E PT975936 E PT 975936E PT 98917463 T PT98917463 T PT 98917463T PT 98917463 T PT98917463 T PT 98917463T PT 975936 E PT975936 E PT 975936E
- Authority
- PT
- Portugal
- Prior art keywords
- magnetic field
- duct
- outputs
- flow
- flow meter
- 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
- G01F1/56—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
-
- 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
- G01F1/002—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow wherein the flow is in an open channel
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Electromagnets (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Paper (AREA)
- Magnetically Actuated Valves (AREA)
- Control Of Combustion (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9708539A GB2324606B (en) | 1997-04-25 | 1997-04-25 | Electromagnetic flowmeter |
Publications (1)
Publication Number | Publication Date |
---|---|
PT975936E true PT975936E (pt) | 2004-06-30 |
Family
ID=10811441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT98917463T PT975936E (pt) | 1997-04-25 | 1998-04-24 | Medidor de caudal electromagnetico |
Country Status (14)
Country | Link |
---|---|
US (1) | US6237424B1 (pt) |
EP (1) | EP0975936B1 (pt) |
JP (1) | JP2001522457A (pt) |
KR (1) | KR20010020291A (pt) |
AT (1) | ATE259054T1 (pt) |
AU (1) | AU741498B2 (pt) |
BR (1) | BR9808970B1 (pt) |
CA (1) | CA2286099A1 (pt) |
DE (1) | DE69821474T2 (pt) |
ES (1) | ES2216282T3 (pt) |
GB (1) | GB2324606B (pt) |
HK (1) | HK1025381A1 (pt) |
PT (1) | PT975936E (pt) |
WO (1) | WO1998049528A1 (pt) |
Families Citing this family (93)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8290721B2 (en) | 1996-03-28 | 2012-10-16 | Rosemount Inc. | Flow measurement diagnostics |
US7949495B2 (en) | 1996-03-28 | 2011-05-24 | Rosemount, Inc. | Process variable transmitter with diagnostics |
US6611775B1 (en) | 1998-12-10 | 2003-08-26 | Rosemount Inc. | Electrode leakage diagnostics in a magnetic flow meter |
US6611770B1 (en) * | 1998-12-10 | 2003-08-26 | Rosemount Inc. | Liquid conduction indication in a magnetic flowmeter |
US6615149B1 (en) | 1998-12-10 | 2003-09-02 | Rosemount Inc. | Spectral diagnostics in a magnetic flow meter |
DE19906004A1 (de) * | 1999-02-15 | 2000-09-14 | Krohne Messtechnik Kg | Signalverarbeitungsschaltung für eine Differenzspannung, insbesondere für ein magnetisch-induktives Durchflußmeßgerät |
DE19907864A1 (de) * | 1999-02-23 | 2000-09-14 | Krohne Messtechnik Kg | Magnetisch-induktives Durchflußmeßgerät |
DE19917261C5 (de) * | 1999-04-16 | 2010-09-09 | Siemens Flow Instruments A/S | Elektromagnetische Durchflußmesseranordnung |
GB9912561D0 (en) | 1999-05-28 | 1999-07-28 | Fusion Meters Ltd | Meter |
DE19938160C2 (de) * | 1999-08-16 | 2003-11-20 | Krohne Messtechnik Kg | Magnetisch-induktives Durchflußmeßverfahren und Durchflußmeßgerät |
GB2377030A (en) * | 2000-01-06 | 2002-12-31 | Abb Automation Ltd | Flow meter structure |
US6765315B2 (en) * | 2001-03-14 | 2004-07-20 | International Power Systems, Inc. | Bi-directional regulator/converter with buck/boost by fuzzy logic control |
GB2378761B (en) * | 2001-04-25 | 2005-11-30 | Abb Metering Ltd | Flow meter |
US6711947B2 (en) * | 2001-06-13 | 2004-03-30 | Rem Scientific Enterprises, Inc. | Conductive fluid logging sensor and method |
TW517466B (en) * | 2001-08-10 | 2003-01-11 | Via Tech Inc | Circuit and related method for compensating degraded signal |
DE10239476A1 (de) * | 2002-08-28 | 2004-03-18 | Abb Patent Gmbh | Verfahren und Einrichtung zum Betrieb einer induktiven Durchflussmesseinrichtung |
US6946511B2 (en) * | 2002-10-29 | 2005-09-20 | Dupont Dow Elastomers, Llc | Plasma resistant elastomer parts |
GB2422199B (en) * | 2003-10-01 | 2008-10-15 | Rem Scient Entpr Inc | Apparatus and method for fluid flow measurement with sensor shielding |
DE10357514B3 (de) * | 2003-12-08 | 2005-04-14 | Krohne Meßtechnik GmbH & Co KG | Magnetisch-induktives Durchflußmeßgerät und Meßverfahren für ein magnetisch-induktives Durchflußmeßgerät |
US7178407B2 (en) | 2003-12-11 | 2007-02-20 | Endress + Hauser Flowtec Ag | Magnetic-inductive flow sensor and method for its manufacture |
DE102004006382B4 (de) * | 2004-02-09 | 2014-09-25 | Endress + Hauser Flowtec Ag | Magnetisch-induktiver Durchflußaufnehmer und Verfahren zu dessen Herstellung |
JP4787763B2 (ja) * | 2003-12-12 | 2011-10-05 | ローズマウント インコーポレイテッド | 調節可能空パイプ機能 |
GB0329450D0 (en) * | 2003-12-19 | 2004-01-28 | Abb Ltd | Electromagnetic flow meter insert |
US7416542B2 (en) * | 2004-04-30 | 2008-08-26 | Medtronic, Inc. | Open circuit gravity-assisted uroflowmeter |
US6931943B1 (en) | 2004-04-30 | 2005-08-23 | Medtronic, Inc. | Permanent magnet flowmeter with noncircular sensing passage |
US6904809B1 (en) | 2004-04-30 | 2005-06-14 | Medtronic, Inc. | Magnetic flowmeter with integral liquid trap |
DE102005030713A1 (de) * | 2004-06-30 | 2006-01-26 | Abb Patent Gmbh | Messstoffberührende Elektrode sowie Verfahren zur Herstellung derselben |
DE102005002903A1 (de) * | 2005-01-21 | 2006-07-27 | Abb Patent Gmbh | Magnetisch-induktives Durchflussmessgerät |
US8112565B2 (en) | 2005-06-08 | 2012-02-07 | Fisher-Rosemount Systems, Inc. | Multi-protocol field device interface with automatic bus detection |
US20070068225A1 (en) | 2005-09-29 | 2007-03-29 | Brown Gregory C | Leak detector for process valve |
GB2434871B (en) | 2006-01-16 | 2009-12-02 | Abb Ltd | Electromagnetic flow meter |
US7808125B1 (en) | 2006-07-31 | 2010-10-05 | Sustainable Energy Technologies | Scheme for operation of step wave power converter |
GB2440963B (en) * | 2006-08-18 | 2011-06-08 | Abb Ltd | Flow meter |
GB2440964B (en) | 2006-08-18 | 2011-08-10 | Abb Ltd | Flow meter |
US7953501B2 (en) | 2006-09-25 | 2011-05-31 | Fisher-Rosemount Systems, Inc. | Industrial process control loop monitor |
US8788070B2 (en) | 2006-09-26 | 2014-07-22 | Rosemount Inc. | Automatic field device service adviser |
EP2074385B2 (en) | 2006-09-29 | 2022-07-06 | Rosemount Inc. | Magnetic flowmeter with verification |
CA2781625C (en) * | 2006-11-10 | 2015-09-29 | Rem Scientific Enterprises, Inc. | Rotating fluid measurement device and method |
DE102006055125B3 (de) * | 2006-11-22 | 2008-06-19 | Siemens Ag | Batteriebetreibbares Feldgerät zur Prozessinstrumentierung |
DE102007004825A1 (de) * | 2007-01-31 | 2008-08-14 | Ifm Electronic Gmbh | Kompaktes magnetisch induktives Durchflussmessgerät mit einer Anzeigeeinrichtung |
DE102007004827B4 (de) | 2007-01-31 | 2012-04-12 | Ifm Electronic Gmbh | Kompaktes magnetisch induktives Durchflussmessgerät |
DE102007015368A1 (de) * | 2007-03-28 | 2008-10-02 | Endress + Hauser Flowtec Ag | Verfahren zum Betreiben eines magnetisch-induktiven Durchflußmeßgeräts |
CN101790827B (zh) * | 2007-06-04 | 2013-06-12 | 可持续能源技术公司 | 用于阶梯波功率转换器和感应逆变器拓扑的预测方案 |
DE102007029563B4 (de) * | 2007-06-26 | 2022-02-24 | Endress + Hauser Flowtec Ag | Magnetisch induktives Durchflussmessgerät |
US7688057B2 (en) * | 2007-07-10 | 2010-03-30 | Rosemount Inc. | Noise diagnosis of operating conditions for an electromagnetic flowmeter |
DE102007032879A1 (de) * | 2007-07-12 | 2009-01-15 | Endress + Hauser Flowtec Ag | Vorrichtung zum Messen des Volumen- oder Massestroms eines mediums in einer Rohrleitung |
US8898036B2 (en) | 2007-08-06 | 2014-11-25 | Rosemount Inc. | Process variable transmitter with acceleration sensor |
JP4721073B2 (ja) * | 2008-04-18 | 2011-07-13 | Smc株式会社 | 電磁流量計 |
DE102008029956A1 (de) | 2008-06-26 | 2009-12-31 | Endress + Hauser Flowtec Ag | Meßsystem mit einem Sensormodul und einem Transmittermodul |
DE102008035740A1 (de) | 2008-07-31 | 2010-02-04 | Abb Technology Ag | Magnetisch induktiver Durchflussmesser mit einer kombinierte magnetische Flussleitmittel umfassenden Elektromagenteinheit |
DE102008037193A1 (de) * | 2008-08-11 | 2010-02-18 | Endress + Hauser Process Solutions Ag | Verfahren zur Überwachung der Reststandzeit einer Batterie |
DE202008017789U1 (de) * | 2008-08-18 | 2010-07-22 | Abb Technology Ag | Durchflussmesseinrichtung |
DE102008038161A1 (de) | 2008-08-18 | 2010-03-04 | Abb Technology Ag | Durchflussmesseinrichtung |
DE102008057756A1 (de) * | 2008-11-17 | 2010-05-27 | Krohne Ag | Magnetisch-induktives Durchflußmeßgerät |
CN102292468B (zh) * | 2009-02-04 | 2013-05-29 | 西门子公司 | 具有对测量电极的腐蚀保护的电磁流量计及包含其的方法 |
US7921734B2 (en) * | 2009-05-12 | 2011-04-12 | Rosemount Inc. | System to detect poor process ground connections |
US8006569B2 (en) * | 2009-06-12 | 2011-08-30 | Sensus Usa Inc. | Magnetic flow meter |
DE102010001393A1 (de) | 2010-01-29 | 2011-08-04 | Endress + Hauser Flowtec Ag | Magnetisch-induktives Durchflussmessgerät |
GB201006409D0 (en) | 2010-04-17 | 2010-06-02 | Univ Huddersfield | Means and method for mearsuring the flow rate of fluid |
JP2012008108A (ja) * | 2010-06-28 | 2012-01-12 | Toshiba Corp | 電磁流量計 |
BRPI1104663A2 (pt) * | 2010-09-06 | 2013-01-15 | Mr Technologies S A | medidor de precisço para fluxos reduzidos |
DE102011009062A1 (de) * | 2011-01-20 | 2012-07-26 | Krohne Ag | Magnetkreisvorrichtung für ein magnetisch-induktives Durchflussmessgerät |
US9207670B2 (en) | 2011-03-21 | 2015-12-08 | Rosemount Inc. | Degrading sensor detection implemented within a transmitter |
US9182258B2 (en) | 2011-06-28 | 2015-11-10 | Rosemount Inc. | Variable frequency magnetic flowmeter |
US8869629B2 (en) * | 2012-03-08 | 2014-10-28 | Cnh Industrial Canada, Ltd. | System and method for monitoring agricultural product delivery |
US9052240B2 (en) | 2012-06-29 | 2015-06-09 | Rosemount Inc. | Industrial process temperature transmitter with sensor stress diagnostics |
US9021890B2 (en) | 2012-09-26 | 2015-05-05 | Rosemount Inc. | Magnetic flowmeter with multiple coils |
US8991264B2 (en) * | 2012-09-26 | 2015-03-31 | Rosemount Inc. | Integrally molded magnetic flowmeter |
US9602122B2 (en) | 2012-09-28 | 2017-03-21 | Rosemount Inc. | Process variable measurement noise diagnostic |
RU2518380C1 (ru) * | 2013-01-09 | 2014-06-10 | Открытое акционерное общество научно-исследовательский институт теплоэнергетического приборостроения "НИИТеплоприбор" | Электромагнитный способ измерения расхода |
JP5887683B2 (ja) * | 2013-04-08 | 2016-03-16 | Smc株式会社 | 電磁流量計 |
US10641627B2 (en) | 2013-12-20 | 2020-05-05 | Rosemount Inc. | Magnetic flowmeter with automatic operating setpoint selection |
US9631962B2 (en) * | 2014-03-18 | 2017-04-25 | Rosemount Inc. | Magnetic core configuration for magnetic flowmeters having a plurality of layers of magnetically permeable material |
DE102015116674B4 (de) * | 2015-01-14 | 2021-08-19 | Krohne Ag | Magnetisch-induktives Durchflussmessgerät |
DE102015107578B4 (de) * | 2015-05-13 | 2021-10-28 | Endress + Hauser Flowtec Ag | Magnetisch induktives Durchflussmessgerät und Verfahren zu dessen Herstellung |
DE102015122546A1 (de) * | 2015-12-22 | 2017-06-22 | Endress+Hauser Flowtec Ag | Verfahren zum Betrieb eines magnetisch-induktiven Durchflussmessgeräts und magnetisch-induktives Durchflussmessgerät |
JP2017026640A (ja) * | 2016-11-07 | 2017-02-02 | 株式会社東芝 | 電磁流量計 |
CN106643927A (zh) * | 2016-12-16 | 2017-05-10 | 杭州盘古自动化系统有限公司 | 一种低功耗休眠电磁流量计及控制方法 |
DE102016124796A1 (de) * | 2016-12-19 | 2018-06-21 | Endress+Hauser Conducta Gmbh+Co. Kg | Sensorkopfmodul zur kontinuierlichen automatisierten Datenerfassung |
DE102017105959B4 (de) * | 2017-03-20 | 2022-08-04 | Endress + Hauser Flowtec Ag | Verfahren zum Betreiben eines magnetisch-induktiven Durchflussmessgeräts und ein magnetisch-induktives Durchflussmessgerät |
US10330511B2 (en) | 2017-06-22 | 2019-06-25 | Saudi Arabian Oil Company | Alternating magnetic field flow meters |
US10557730B2 (en) | 2017-06-22 | 2020-02-11 | Saudi Arabian Oil Company | Alternating magnetic field flow meters with embedded quality assurance and control |
CN107218979A (zh) * | 2017-07-28 | 2017-09-29 | 广东青藤环境科技有限公司 | 低功耗电磁水表转换器 |
CN111771104B (zh) * | 2018-02-28 | 2023-03-10 | Abb瑞士股份有限公司 | 电磁流量计 |
JP6524292B2 (ja) * | 2018-03-20 | 2019-06-05 | 株式会社東芝 | 電磁流量計の製造方法 |
DE102018112897A1 (de) | 2018-05-30 | 2019-12-05 | Krohne Messtechnik Gmbh | Magnetisch-induktives Durchflussmessgerät und Messrohr |
DE102018115628B4 (de) * | 2018-06-28 | 2020-02-13 | Endress+Hauser Flowtec Ag | Verfahren zur Inbetriebnahme eines magnetisch-induktiven Durchflussmessgerätes und ein magnetisch-induktives Durchflussmessgerät |
US10712184B1 (en) * | 2019-01-09 | 2020-07-14 | Georg Fischer Signet Llc | Magnetic flowmeter assembly having independent coil drive and control system |
US11341830B2 (en) | 2020-08-06 | 2022-05-24 | Saudi Arabian Oil Company | Infrastructure construction digital integrated twin (ICDIT) |
DE102020123492A1 (de) * | 2020-09-09 | 2022-03-10 | Krohne Messtechnik Gmbh | Magnetisch-induktives Durchflussmessgerät und Verfahren zur Funktionsüberwachung eines magnetisch-induktiven Durchflussmessgerätes |
US11687053B2 (en) | 2021-03-08 | 2023-06-27 | Saudi Arabian Oil Company | Intelligent safety motor control center (ISMCC) |
DE102021131692A1 (de) * | 2021-12-01 | 2023-06-01 | Endress + Hauser Flowtec Ag | Magnetisch-induktive Durchflussmessvorrichtung |
US12024985B2 (en) | 2022-03-24 | 2024-07-02 | Saudi Arabian Oil Company | Selective inflow control device, system, and method |
Family Cites Families (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB846029A (en) * | 1956-09-06 | 1960-08-24 | Foxboro Co | Method of and apparatus for minimizing spurious signals in an electromagnetic flowmeter |
GB1040025A (en) * | 1963-06-14 | 1966-08-24 | Nyegaard & Co As | A device for electro-magnetic measurement of fluid flow |
GB1095915A (en) * | 1965-03-24 | 1967-12-20 | George Kent Stroud Ltd | Improvements in or relating to flowmeters |
GB1105572A (en) * | 1965-05-18 | 1968-03-06 | Cie Generale D Electronique In | An electromagnetic flow-meter |
FR95028E (fr) * | 1967-04-27 | 1970-03-27 | Ben Soc | Perfectionnement aux courantometres et lochs électromagnétiques. |
BE757378A (fr) * | 1969-10-15 | 1971-03-16 | Siemens Ag | Dispositif de mesure de la vitesse d'ecoulement d'un liquide electriquement conducteur |
JPS5034853A (pt) * | 1973-07-31 | 1975-04-03 | ||
DE2410407C3 (de) * | 1974-03-05 | 1981-05-21 | Fa. Ludwig Krohne, 4100 Duisburg | Verfahren zur Kompensation der elektrochemischen Störgleichspannung bei der induktiven Durchflußmessung mit periodisch zwischen zwei Induktionswerten hin- und hergeschaltetem Gleichfeld |
US4051444A (en) * | 1975-01-16 | 1977-09-27 | Sybron Corporation | Amplifier structure for low-level voltage measurements |
US3996797A (en) * | 1975-01-24 | 1976-12-14 | Hokushin Electric Works, Ltd. | Magnetic flowmeter |
US3995484A (en) * | 1975-08-14 | 1976-12-07 | Sybron Corporation | Electromagnetic flowmeter characterized by zero quadrature signal |
JPS5825965B2 (ja) * | 1975-11-28 | 1983-05-31 | 横河電機株式会社 | デンジリユウリヨウケイ |
US4253340A (en) * | 1979-09-12 | 1981-03-03 | Fischer & Porter Co. | Unitary electromagnetic flowmeter |
JPS5494257U (pt) * | 1977-12-15 | 1979-07-04 | ||
DE2756873C2 (de) * | 1977-12-20 | 1987-01-15 | Fischer & Porter GmbH, 3400 Göttingen | Vorrichtung zur Messung der Stromstärke eines fließenden Mediums |
JPS54115164A (en) * | 1978-02-28 | 1979-09-07 | Yokogawa Hokushin Electric Corp | Electromagnetic flowmeter |
US4227408A (en) * | 1978-12-07 | 1980-10-14 | Fischer & Porter Company | Harmonic noise suppression in electromagnetic flowmeter |
US4409846A (en) * | 1979-02-08 | 1983-10-18 | Aichi Tokei Denki Co., Ltd. | Electromagnetic flow meter |
GB2081449B (en) * | 1980-08-04 | 1984-09-26 | Aichi Tokei Denki Kk | Electromagnetic flow meters |
DE3132471C2 (de) * | 1980-10-02 | 1984-11-29 | Flowtec AG, Reinach, Basel | Verfahren und Anordnung zur Kompensation der Störgleichspannungen im Elektrodenkreis bei der magnetisch-induktiven Durchflußmessung |
US4470309A (en) * | 1981-07-06 | 1984-09-11 | Tokyo Shibaura Denki Kabushiki Kaisha | Electromagnetic flowmeter |
DE3202494A1 (de) * | 1981-10-07 | 1983-04-21 | MSR Paul Mähler, 5000 Köln | Verfahren zum betreiben einer oder mehrerer magnetischinduktiver messsonden |
US4672331A (en) * | 1983-06-21 | 1987-06-09 | Cushing Vincent J | Signal conditioner for electromagnetic flowmeter |
US4766770A (en) * | 1984-03-30 | 1988-08-30 | Fischer & Porter Company | Low duty cycle electromagnetic flowmeter |
JPS60242318A (ja) * | 1984-05-16 | 1985-12-02 | Aichi Tokei Denki Co Ltd | 残留磁気式電磁流量計 |
DE3537752A1 (de) * | 1985-10-23 | 1987-04-23 | Flowtec Ag | Verfahren zur kompensation von stoerspannungen im elektrodenkreis bei der magnetisch-induktiven durchflussmessung |
DE3540170A1 (de) * | 1985-11-13 | 1987-05-21 | Turbo Werk Messtechnik Gmbh | Schaltung zur umwandlung eines periodischen nutzsignals in ein gleichspannungssignal |
GB2186373B (en) * | 1986-02-06 | 1990-06-06 | Danfoss As | Electromagnetic flowmeters and flowmetering methods |
JPS63145919A (ja) * | 1986-07-28 | 1988-06-18 | Toshiba Corp | 電磁流量計検出器 |
US4727755A (en) * | 1986-12-08 | 1988-03-01 | Fischer & Porter Co. | Electromagnetic flowmeter with alternating permanent magnet field |
US4755757A (en) * | 1987-03-06 | 1988-07-05 | Southwest Research Institute | Fluid leak detection system for determining the fate of fluid leakage through a geomembrane |
DE3710350A1 (de) * | 1987-03-28 | 1988-10-06 | Diessel Gmbh & Co | Vorrichtung zur verstaerkung von getakteten elektrischen messsignalen |
JP2514960B2 (ja) * | 1987-04-13 | 1996-07-10 | 愛知時計電機株式会社 | 電磁流量計 |
JPS63181922U (pt) * | 1987-05-15 | 1988-11-24 | ||
DE3810034A1 (de) * | 1988-03-25 | 1989-10-05 | Kieninger & Obergfell | Magnetinduktiver durchflussmengenmesser |
JP2568620B2 (ja) * | 1988-03-29 | 1997-01-08 | 愛知時計電機株式会社 | 電磁流量計 |
US4881413A (en) * | 1988-10-31 | 1989-11-21 | Bio-Medicus, Inc. | Blood flow detection device |
JP2707762B2 (ja) * | 1989-10-31 | 1998-02-04 | 横河電機株式会社 | 電磁流量計 |
JP2734162B2 (ja) * | 1990-03-07 | 1998-03-30 | 横河電機株式会社 | 電磁流量計 |
DK0521169T3 (da) * | 1991-06-08 | 1996-02-26 | Flowtec Ag | Elektromagnetisk flowmåler |
DE4127694A1 (de) * | 1991-08-21 | 1993-02-25 | Fischer & Porter Gmbh | Vorrichtung zur messung des stroms einer elektrische ladungen enthaltenden fluessigkeit |
JPH05264308A (ja) * | 1992-03-19 | 1993-10-12 | Fuji Electric Co Ltd | 電磁流量計 |
US5297425A (en) * | 1992-03-23 | 1994-03-29 | Tennessee Valley Authority | Electromagnetic borehole flowmeter system |
US5426984A (en) * | 1993-09-02 | 1995-06-27 | Rosemount Inc. | Magnetic flowmeter with empty pipe detector |
DK0649005T3 (da) * | 1993-10-14 | 1997-10-13 | Flowtec Ag | Magnetisk-induktiv gennemstrømningsføler |
JPH0814973A (ja) * | 1994-06-24 | 1996-01-19 | Yokogawa Electric Corp | 電磁流量計 |
US5551306A (en) * | 1994-12-06 | 1996-09-03 | Hersey Measurement Company | Magnetic flowmeter |
US5621177A (en) * | 1995-03-02 | 1997-04-15 | Yokogawa Electric Corporation | Electromagnetic flowmeter |
US5895864A (en) * | 1995-12-28 | 1999-04-20 | The Foxboro Company | Magnetic flowmeter with empty tube detection |
GB2312512A (en) * | 1996-04-26 | 1997-10-29 | Caledonian Control Technology | Electromagnetic flowmeters |
US5747700A (en) * | 1996-10-23 | 1998-05-05 | Wood; Robert | Portable electronic flow meter |
US5767418A (en) * | 1997-01-21 | 1998-06-16 | Elsag International N.V. | Electromagnetic flowmeter with single bobbin coil |
-
1997
- 1997-04-25 GB GB9708539A patent/GB2324606B/en not_active Expired - Fee Related
-
1998
- 1998-04-24 EP EP98917463A patent/EP0975936B1/en not_active Expired - Lifetime
- 1998-04-24 KR KR1019997009895A patent/KR20010020291A/ko not_active Application Discontinuation
- 1998-04-24 CA CA002286099A patent/CA2286099A1/en not_active Abandoned
- 1998-04-24 PT PT98917463T patent/PT975936E/pt unknown
- 1998-04-24 AT AT98917463T patent/ATE259054T1/de not_active IP Right Cessation
- 1998-04-24 AU AU70688/98A patent/AU741498B2/en not_active Ceased
- 1998-04-24 DE DE69821474T patent/DE69821474T2/de not_active Expired - Fee Related
- 1998-04-24 WO PCT/GB1998/001199 patent/WO1998049528A1/en not_active Application Discontinuation
- 1998-04-24 ES ES98917463T patent/ES2216282T3/es not_active Expired - Lifetime
- 1998-04-24 JP JP54672298A patent/JP2001522457A/ja active Pending
- 1998-04-24 BR BRPI9808970-6A patent/BR9808970B1/pt not_active IP Right Cessation
-
1999
- 1999-10-15 US US09/419,334 patent/US6237424B1/en not_active Expired - Lifetime
-
2000
- 2000-07-22 HK HK00104540A patent/HK1025381A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BR9808970A (pt) | 2000-08-01 |
KR20010020291A (ko) | 2001-03-15 |
EP0975936B1 (en) | 2004-02-04 |
ES2216282T3 (es) | 2004-10-16 |
WO1998049528A1 (en) | 1998-11-05 |
US6237424B1 (en) | 2001-05-29 |
GB2324606A (en) | 1998-10-28 |
HK1025381A1 (en) | 2000-11-10 |
DE69821474D1 (de) | 2004-03-11 |
ATE259054T1 (de) | 2004-02-15 |
GB2324606B (en) | 2002-01-16 |
JP2001522457A (ja) | 2001-11-13 |
GB9708539D0 (en) | 1997-06-18 |
DE69821474T2 (de) | 2004-12-23 |
AU741498B2 (en) | 2001-11-29 |
CA2286099A1 (en) | 1998-11-05 |
BR9808970B1 (pt) | 2011-08-23 |
EP0975936A1 (en) | 2000-02-02 |
AU7068898A (en) | 1998-11-24 |
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