DE69425263D1 - Magnetisch induktiver durchflussmesser mit leerstandsdetektor - Google Patents

Magnetisch induktiver durchflussmesser mit leerstandsdetektor

Info

Publication number: DE69425263D1
Authority: DE; Germany
Prior art keywords: level detector; inductive flowmeter; magnetically inductive; magnetically; flowmeter
Prior art date: 1993-09-02
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

Application number

DE69425263T

Other languages

English (en)

Other versions

DE69425263T2 (de

Inventor

D Rovner

P Coursolle

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Rosemount Inc

Original Assignee

Rosemount Inc

Priority date (The priority date 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 date listed.)

1993-09-02

Filing date

1994-08-18

Publication date

2000-08-17

1994-08-18 Application filed by Rosemount Inc filed Critical Rosemount Inc

2000-08-17 Application granted granted Critical

2000-08-17 Publication of DE69425263D1 publication Critical patent/DE69425263D1/de

2001-02-01 Publication of DE69425263T2 publication Critical patent/DE69425263T2/de

2014-08-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- G01F1/60—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

Landscapes

Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
General Physics & Mathematics (AREA)
Electromagnetism (AREA)
Measuring Volume Flow (AREA)

DE69425263T 1993-09-02 1994-08-18 Magnetisch induktiver durchflussmesser mit rohrleerzustandsdetektor Expired - Lifetime DE69425263T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US08/116,122 US5426984A (en)	1993-09-02	1993-09-02	Magnetic flowmeter with empty pipe detector
PCT/US1994/009421 WO1995006857A1 (en)	1993-09-02	1994-08-18	Magnetic flowmeter with empty pipe detector

Publications (2)

Publication Number	Publication Date
DE69425263D1 true DE69425263D1 (de)	2000-08-17
DE69425263T2 DE69425263T2 (de)	2001-02-01

Family

ID=22365383

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69425263T Expired - Lifetime DE69425263T2 (de)	1993-09-02	1994-08-18	Magnetisch induktiver durchflussmesser mit rohrleerzustandsdetektor

Country Status (9)

Country	Link
US (1)	US5426984A (de)
EP (1)	EP0716731B1 (de)
JP (1)	JP3448058B2 (de)
CN (1)	CN1054200C (de)
CA (1)	CA2169443A1 (de)
DE (1)	DE69425263T2 (de)
RU (1)	RU2141627C1 (de)
SG (1)	SG44484A1 (de)
WO (1)	WO1995006857A1 (de)

Families Citing this family (47)

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US6014902A (en) *	1995-12-28	2000-01-18	The Foxboro Company	Magnetic flowmeter with diagnostics
US5895864A (en) *	1995-12-28	1999-04-20	The Foxboro Company	Magnetic flowmeter with empty tube detection
US5767418A (en) *	1997-01-21	1998-06-16	Elsag International N.V.	Electromagnetic flowmeter with single bobbin coil
GB2324606B (en) *	1997-04-25	2002-01-16	Kent Meters Ltd	Electromagnetic flowmeter
GB2333161B (en) *	1997-12-24	2002-06-12	Abb Kent Taylor Ltd	Electrode integrity checking
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
DE19906004A1 (de) *	1999-02-15	2000-09-14	Krohne Messtechnik Kg	Signalverarbeitungsschaltung für eine Differenzspannung, insbesondere für ein magnetisch-induktives Durchflußmeßgerät
DE10118002B4 (de) *	2001-04-10	2004-12-30	Krohne Meßtechnik GmbH & Co KG	Magnetisch-induktives Durchflußmeßverfahren und magnetisch-induktives Durchflußmeßgerät
JP3915459B2 (ja) *	2001-09-20	2007-05-16	横河電機株式会社	電磁流量計
KR100467314B1 (ko) *	2001-11-26	2005-01-24	학교법인 포항공과대학교	전자기 유량계
DE10346409A1 (de) *	2003-10-07	2005-05-25	Abb Patent Gmbh	Magnetisch-induktives Durchflussmessgerät mit Mitteln zur Bestimmung von Betriebsparametern
DE10356007B3 (de) *	2003-11-27	2005-07-07	Krohne Meßtechnik GmbH & Co KG	Verfahren zum Betreiben eines magnetisch-induktiven Durchflußmeßgeräts
CN100460830C (zh) *	2003-12-12	2009-02-11	罗斯蒙德公司	可调空管功能
JP4523319B2 (ja) *	2004-04-09	2010-08-11	株式会社山武	電磁流量計
JP4523343B2 (ja) *	2004-06-14	2010-08-11	株式会社山武	電磁流量計
US7073393B2 (en)	2004-11-01	2006-07-11	Rosemount Inc.	Magnetic flowmeter with built-in simulator
US7827870B2 (en) *	2005-04-26	2010-11-09	Severn Trent Metering Services Limited	Meter
CN100342220C (zh) *	2005-12-14	2007-10-10	浙江大学	电磁流量计无源标准信号发生器
GB2434871B (en) *	2006-01-16	2009-12-02	Abb Ltd	Electromagnetic flow meter
JP4941703B2 (ja) *	2006-03-16	2012-05-30	横河電機株式会社	電磁流量計
DE102006033112A1 (de) *	2006-07-18	2008-01-31	Abb Patent Gmbh	Verfahren und Einrichtung zum Betrieb eines Durchflussmessgerätes
DE102007014469A1 (de) *	2007-03-22	2008-09-25	Endress + Hauser Flowtec Ag	Verfahren zur vorausschauenden Wartung und/oder Verfahren zur Bestimmung der elektrischen Leitfähigkeit bei einem magnetischinduktiven Durchflussmessgerät
AU2007360103B2 (en) *	2007-10-08	2011-04-14	Micro Motion, Inc.	A flow device and method for operating a flow device
US7921734B2 (en) *	2009-05-12	2011-04-12	Rosemount Inc.	System to detect poor process ground connections
CN101718565B (zh) *	2009-11-26	2012-08-08	上海大学	基于光电耦合的双激励电磁流量计
JP5444086B2 (ja) *	2010-03-30	2014-03-19	アズビル株式会社	電磁流量計
JP5565628B2 (ja) *	2010-10-05	2014-08-06	横河電機株式会社	電磁流量計
CN103048023B (zh) *	2011-10-11	2015-05-20	上海威尔泰仪器仪表有限公司	电磁式水表
CN104428634A (zh) *	2012-04-30	2015-03-18	齐鲁姆专利Ⅱ有限及两合公司	用于测量介质流速的测量装置和测量方法
DE102012213507B3 (de) *	2012-07-31	2013-08-22	Ifm Electronic Gmbh	Magnetisch-induktives Durchflussmessgerät
CN102798488B (zh) *	2012-08-20	2014-02-05	上海严熔仪器仪表设备有限公司	电磁式热能表
JP5973897B2 (ja) *	2012-12-04	2016-08-23	アズビル株式会社	電磁流量計
JP5997633B2 (ja) *	2013-03-18	2016-09-28	アズビル株式会社	電磁流量計
EP2821756B1 (de) *	2013-07-01	2023-07-05	Krohne Messtechnik GmbH	Magnetisch-induktives Durchflussmessgerät und Verfahren zum Betreiben eines magnetisch-induktiven Durchflussmessgeräts
US10663331B2 (en) *	2013-09-26	2020-05-26	Rosemount Inc.	Magnetic flowmeter with power limit and over-current detection
CN103591991B (zh) *	2013-11-08	2016-08-17	上海大学	带有流体阻抗测量的电磁流量计
JP2015105929A (ja) *	2013-12-02	2015-06-08	株式会社東芝	電磁流量計
DE102014114443B4 (de) *	2014-10-06	2019-07-11	Finetek Co., Ltd	Elektromagnetischer Durchflussmesser mit Spannungsamplituden-Leitfähigkeitsabtastfunktion für eine Flüssigkeit in einem Rohr
DE102014116505B3 (de) *	2014-11-12	2016-03-31	Finetek Co., Ltd.	Elektromagnetischer Durchflussmesser mit Leitfähigkeitserfassungsfunktion mit variabler Frequenz für eine Flüssigkeit in einem Rohr
CN104771806B (zh) *	2015-05-12	2018-01-16	中国人民解放军第三军医大学第二附属医院	基于阻抗变化的输液泵多参数信号采集装置及方法
GB2544286A (en) *	2015-11-10	2017-05-17	Abb Ltd	Method and apparatus for electrode impedance measurement
US10024707B2 (en) *	2016-02-17	2018-07-17	Schneider Electric Systems Usa, Inc.	Electromagnetic flowmeter calibration verification
US9784603B2 (en) *	2016-02-17	2017-10-10	Invensys Systems, Inc.	Electromagnetic flowmeter empty pipe detection system
CN107228700A (zh) *	2016-03-25	2017-10-03	艾默生过程控制流量技术有限公司	用于检测电磁流量计的电极泄漏的装置和方法
JP7098465B2 (ja) *	2018-07-24	2022-07-11	アズビル株式会社	電磁流量計
CN111964755A (zh) *	2020-07-17	2020-11-20	北方华锦化学工业股份有限公司	电磁流量计修复方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2685796A (en) *	1950-10-26	1954-08-10	Bowser Inc	Magnetic type fluid meter
US3290585A (en) *	1962-08-06	1966-12-06	Foxboro Co	Magnetic flow meter system with override control
US3299703A (en) *	1963-07-22	1967-01-24	Ford Motor Co	Electromagnetic flowmeter
GB1231199A (de) *	1967-10-03	1971-05-12
US3528287A (en) *	1967-12-06	1970-09-15	Massachusetts Inst Technology	Electrohydrodynamic induction flowmeter and conductivity measuring device
US3902366A (en) *	1972-05-17	1975-09-02	Sybron Corp	Magnetic flowmeter system
US3783687A (en) *	1972-05-26	1974-01-08	Fischer & Porter Co	Electromagnetic flowmeter with square-wave excitation
US3896373A (en) *	1972-11-30	1975-07-22	Stein Paul D	Method and apparatus for determining cross-sectional area of a blood conduit and volumetric flow therethrough
DE2454469C3 (de) *	1974-11-16	1981-07-23	Fischer & Porter GmbH, 3400 Göttingen	Induktiver Durchflußmesser
US4119909A (en) *	1977-03-31	1978-10-10	Radian Corporation	Pulsed DC transient conductivity measurement system
US4409846A (en) *	1979-02-08	1983-10-18	Aichi Tokei Denki Co., Ltd.	Electromagnetic flow meter
US4290313A (en) *	1980-01-15	1981-09-22	Fischer & Porter Company	Electromagnetic flowmeter system
JPS5847214A (ja) *	1981-09-16	1983-03-18	Toshiba Corp	方形波励磁電磁流量計変換器
US4408497A (en) *	1981-12-22	1983-10-11	Hokushin Electric Works, Ltd.	Electromagnetic flowmeter for measuring ferromagnetic slurries
US4513624A (en) *	1983-01-20	1985-04-30	The Foxboro Company	Capacitively-coupled magnetic flowmeter
JPS61204521A (ja) *	1985-03-08	1986-09-10	Hitachi Ltd	電磁流量計
GB2177210B (en) *	1985-07-04	1990-01-31	Yokogawa Hokushin Electric	Electromagnetic flowmeter
US4704907A (en) *	1986-07-11	1987-11-10	Fischer & Porter Company	Electromagnetic flowmeter with triangular flux drive
JPS6332321A (ja) *	1986-07-25	1988-02-12	Fuji Electric Co Ltd	電磁流量計の空水検知回路
US4784001A (en) *	1987-07-13	1988-11-15	Emerson Electric Co.	Magnetic flowmeter with isolation amplifier and ranging circuit therefor and method
JP2568620B2 (ja) *	1988-03-29	1997-01-08	愛知時計電機株式会社	電磁流量計
DE4122225A1 (de) *	1991-07-04	1993-01-07	Fischer & Porter Gmbh	Schaltungsanordnung zur ermittlung von fehlern in einer magnetisch-induktiven durchflussmessanordnung

1993
- 1993-09-02 US US08/116,122 patent/US5426984A/en not_active Expired - Lifetime
1994
- 1994-08-18 SG SG1996000826A patent/SG44484A1/en unknown
- 1994-08-18 WO PCT/US1994/009421 patent/WO1995006857A1/en active IP Right Grant
- 1994-08-18 DE DE69425263T patent/DE69425263T2/de not_active Expired - Lifetime
- 1994-08-18 EP EP94925967A patent/EP0716731B1/de not_active Expired - Lifetime
- 1994-08-18 JP JP50815495A patent/JP3448058B2/ja not_active Expired - Lifetime
- 1994-08-18 CN CN94193261A patent/CN1054200C/zh not_active Expired - Fee Related
- 1994-08-18 CA CA002169443A patent/CA2169443A1/en not_active Abandoned
- 1994-08-18 RU RU96107107A patent/RU2141627C1/ru active

Also Published As

Publication number	Publication date
US5426984A (en)	1995-06-27
CN1054200C (zh)	2000-07-05
CN1130422A (zh)	1996-09-04
EP0716731A1 (de)	1996-06-19
JP3448058B2 (ja)	2003-09-16
RU2141627C1 (ru)	1999-11-20
DE69425263T2 (de)	2001-02-01
JPH09502267A (ja)	1997-03-04
EP0716731B1 (de)	2000-07-12
CA2169443A1 (en)	1995-03-09
SG44484A1 (en)	1997-12-19
WO1995006857A1 (en)	1995-03-09

Legal Events

Date	Code	Title	Description
2001-08-02	8364	No opposition during term of opposition

Publication	Publication Date	Title
DE69425263D1 (de)	2000-08-17	Magnetisch induktiver durchflussmesser mit leerstandsdetektor
DK0521169T3 (da)	1996-02-26	Elektromagnetisk flowmåler
DE69216381D1 (de)	1997-02-13	Magnetisch induktiver freispiegeldurchflussmesser
NO923719L (no)	1993-03-26	Magneteorologisk vaeske
DE69224849D1 (de)	1998-04-23	Durchflussmesser
DE69217994D1 (de)	1997-04-10	Flüssigkeitsstandsmesser
DE69326762T2 (de)	2000-04-20	Gleis mit induktivem primärkreis
BR9201635A (pt)	1993-03-16	Vedacao magnetica
DE59106870D1 (de)	1995-12-14	Magnetfelddetektor.
DE69332128D1 (de)	2002-08-29	Elektromagnetischer Durchflussmesser
DE69217158D1 (de)	1997-03-13	Rohrleitungsverschluss
DE69317699T2 (de)	1998-11-05	Magnetischer Detektor
DE69328626T2 (de)	2001-02-08	Fotokopierer mit kodierungsfunktion
DE69331969T2 (de)	2002-11-07	Wirbelstrassendurchflussmesser
DE69418391D1 (de)	1999-06-17	Schlitzgiesser mit querverlaufendem Fluss
DE69328568T2 (de)	2001-01-04	Tonerteilchen mit modifizierter aufladbarkeit
DE69223830T2 (de)	1998-08-13	Magnetischer Fühler
DE69222941T2 (de)	1998-03-05	Magnetfelddetektor
DE69221595D1 (de)	1997-09-18	Elektromagnetischer Durchflussmesser
DE69118483D1 (de)	1996-05-09	Magnetischer Durchflussmesser
DE69123236D1 (de)	1997-01-02	Instrument mit Erfassung des Durchgangs
KR950704673A (ko)	1995-11-20	레벨계
DE69213805D1 (de)	1996-10-24	Elektromagnetischer Durchflussmesser
DE69204425D1 (de)	1995-10-05	Elektromagnetischer Durchflussmesser.
DE69216830D1 (de)	1997-02-27	Magnetpositionsdetektor