DE69027859D1 - Umsetzschaltung für die übertragung elektromagnetischen flusses - Google Patents

Umsetzschaltung für die übertragung elektromagnetischen flusses

Info

Publication number
DE69027859D1
DE69027859D1 DE69027859T DE69027859T DE69027859D1 DE 69027859 D1 DE69027859 D1 DE 69027859D1 DE 69027859 T DE69027859 T DE 69027859T DE 69027859 T DE69027859 T DE 69027859T DE 69027859 D1 DE69027859 D1 DE 69027859D1
Authority
DE
Germany
Prior art keywords
electromagnetic flow
transmitting electromagnetic
implementation circuit
implementation
circuit
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 - Fee Related
Application number
DE69027859T
Other languages
English (en)
Other versions
DE69027859T2 (de
Inventor
David Wehrs
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.)
Filing date
Publication date
Application filed by Rosemount Inc filed Critical Rosemount Inc
Application granted granted Critical
Publication of DE69027859D1 publication Critical patent/DE69027859D1/de
Publication of DE69027859T2 publication Critical patent/DE69027859T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
DE69027859T 1989-09-20 1990-09-13 Umsetzschaltung für die übertragung elektromagnetischen flusses Expired - Fee Related DE69027859T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/409,935 US5079957A (en) 1989-09-20 1989-09-20 Conversion circuit for an electromagnetic flow transmitter
PCT/US1990/005188 WO1991004463A1 (en) 1989-09-20 1990-09-13 Conversion circuit for an electromagnetic flow transmitter

Publications (2)

Publication Number Publication Date
DE69027859D1 true DE69027859D1 (de) 1996-08-22
DE69027859T2 DE69027859T2 (de) 1996-12-12

Family

ID=23622560

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69033966T Expired - Lifetime DE69033966T2 (de) 1989-09-20 1990-09-13 Sender
DE69027859T Expired - Fee Related DE69027859T2 (de) 1989-09-20 1990-09-13 Umsetzschaltung für die übertragung elektromagnetischen flusses

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69033966T Expired - Lifetime DE69033966T2 (de) 1989-09-20 1990-09-13 Sender

Country Status (6)

Country Link
US (1) US5079957A (de)
EP (2) EP0711979B1 (de)
JP (1) JP2802545B2 (de)
CA (1) CA2066571C (de)
DE (2) DE69033966T2 (de)
WO (1) WO1991004463A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5436824A (en) * 1992-12-10 1995-07-25 Rosemount Inc. Inrush current limiter in a magnetic flowmeter
US5372045A (en) * 1993-02-12 1994-12-13 Rosemount Inc. Bridge pulse controlled constant current driver for magnetic flowmeter
ES2105945B1 (es) * 1994-10-26 1998-05-01 Hortsmann Largacha Peter Circuitos de control de un caudalimetro electromagnetico.
US5907103A (en) * 1996-06-20 1999-05-25 Endress + Hauser Flowtec Ag Instrumentation amplifier arrangements of electromagnetic flowmeters
GB2332527B (en) * 1997-12-19 2002-10-30 Abb Kent Taylor Ltd Electromagnetic flowmeter
DE19938160C2 (de) * 1999-08-16 2003-11-20 Krohne Messtechnik Kg Magnetisch-induktives Durchflußmeßverfahren und Durchflußmeßgerät
EP1363108B1 (de) * 2002-05-14 2014-04-02 Krohne Messtechnik Gmbh & Co. Kg Verfahren zur Bestimmung der Unsicherheit eines magnetisch-induktiven Durchflussmessers
US7779702B2 (en) * 2008-11-03 2010-08-24 Rosemount Inc. Flow disturbance compensation for magnetic flowmeter
US8779777B2 (en) * 2010-06-04 2014-07-15 Linear Technology Corporation Dynamic compensation of aging drift in current sense resistor
US10663331B2 (en) * 2013-09-26 2020-05-26 Rosemount Inc. Magnetic flowmeter with power limit and over-current detection
JP6183309B2 (ja) * 2014-07-11 2017-08-23 横河電機株式会社 流量計及び絶縁劣化診断システム

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783687A (en) * 1972-05-26 1974-01-08 Fischer & Porter Co Electromagnetic flowmeter with square-wave excitation
US4306461A (en) * 1979-10-09 1981-12-22 Emerson Electric Co. Meter incorporating a digital fullscale setting device
US4309909A (en) * 1979-10-09 1982-01-12 Emerson Electric Co. Crystal stabilized voltage to frequency converter with digital calibration for flowmeters
US4303980A (en) * 1979-12-03 1981-12-01 Fischer & Porter Company Electromagnetic flowmeter system having automatically adjusted response characteristics
US4339958A (en) * 1980-02-21 1982-07-20 Fischer & Porter Co. Analog-to-digital converter for electromagnetic flowmeter
JPS56148015A (en) * 1980-04-18 1981-11-17 Yokogawa Hokushin Electric Corp Electromagnetic flowmeter
US4417479A (en) * 1981-09-01 1983-11-29 Fischer & Porter Company Electromagnetic flowmeter system having a feedback loop
JPS58113816A (ja) 1981-12-28 1983-07-06 Shimadzu Corp 電磁流量計
US4598251A (en) * 1982-06-16 1986-07-01 Rosemount Inc. Frequency to current converter circuit
US4562547A (en) * 1983-03-28 1985-12-31 Fischer & Porter Company Computer data bus compatible current and frequency output system
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
JPS6166123A (ja) * 1984-09-07 1986-04-04 Toshiba Corp 電磁流量計変換器
US4680973A (en) * 1984-10-25 1987-07-21 Yokogawa Hokushin Electric Corporation Electromagnetic flow meter converter
GB2183343B (en) * 1985-11-25 1989-11-01 Danfoss As Electromagnetic flowmeters

Also Published As

Publication number Publication date
EP0491852A4 (en) 1993-03-17
EP0491852B1 (de) 1996-07-17
EP0711979A2 (de) 1996-05-15
EP0711979A3 (de) 1997-08-20
DE69027859T2 (de) 1996-12-12
JP2802545B2 (ja) 1998-09-24
CA2066571C (en) 2000-11-28
CA2066571A1 (en) 1991-03-21
WO1991004463A1 (en) 1991-04-04
DE69033966D1 (de) 2002-07-04
EP0491852A1 (de) 1992-07-01
JPH05500566A (ja) 1993-02-04
EP0711979B1 (de) 2002-05-29
US5079957A (en) 1992-01-14
DE69033966T2 (de) 2002-12-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee