IT8124179A0 - Disposizione per produrre campi magnetici continui di polarita'variabile per la misurazione magneto-induttiva della portata. - Google Patents

Disposizione per produrre campi magnetici continui di polarita'variabile per la misurazione magneto-induttiva della portata.

Info

Publication number
IT8124179A0
IT8124179A0 IT8124179A IT2417981A IT8124179A0 IT 8124179 A0 IT8124179 A0 IT 8124179A0 IT 8124179 A IT8124179 A IT 8124179A IT 2417981 A IT2417981 A IT 2417981A IT 8124179 A0 IT8124179 A0 IT 8124179A0
Authority
IT
Italy
Prior art keywords
magneto
arrangement
flow rate
magnetic fields
continuous magnetic
Prior art date
Application number
IT8124179A
Other languages
English (en)
Other versions
IT1138649B (it
Inventor
Peter Hafner
Peter Flecken
Original Assignee
Flowtec Ag
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 Flowtec Ag filed Critical Flowtec Ag
Publication of IT8124179A0 publication Critical patent/IT8124179A0/it
Application granted granted Critical
Publication of IT1138649B publication Critical patent/IT1138649B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals
    • H03K17/662—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals each output circuit comprising more than one controlled bipolar transistor
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/04—Modifications for accelerating switching
    • H03K17/041—Modifications for accelerating switching without feedback from the output circuit to the control circuit
    • H03K17/0416—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/04166—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit in bipolar transistor switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)
  • Measuring Magnetic Variables (AREA)
  • Rectifiers (AREA)
  • Relay Circuits (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measuring Volume Flow (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
IT24179/81A 1980-10-02 1981-09-28 Disposizione per produrre campi magnetici continui di polarita'variabile per la misurazione magneto-induttiva della portata IT1138649B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3037305A DE3037305C2 (de) 1980-10-02 1980-10-02 Anordnung zur Erzeugung magnetischer Gleichfelder wechselnder Polarität für die magnetisch-induktive Durchflußmessung

Publications (2)

Publication Number Publication Date
IT8124179A0 true IT8124179A0 (it) 1981-09-28
IT1138649B IT1138649B (it) 1986-09-17

Family

ID=6113475

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24179/81A IT1138649B (it) 1980-10-02 1981-09-28 Disposizione per produrre campi magnetici continui di polarita'variabile per la misurazione magneto-induttiva della portata

Country Status (11)

Country Link
US (1) US4410926A (it)
JP (1) JPS5764910A (it)
BE (1) BE890573A (it)
CH (1) CH655795A5 (it)
DD (1) DD201727A5 (it)
DE (1) DE3037305C2 (it)
FR (1) FR2491620B1 (it)
GB (1) GB2084827B (it)
IT (1) IT1138649B (it)
NL (1) NL8104462A (it)
SE (1) SE458311B (it)

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EP0332974B1 (de) * 1988-03-18 1992-10-14 Siemens Aktiengesellschaft Kurzschlussschutz für eine motorisch sowie generatorisch betreibbare pulsumrichtergespeiste elektrische Maschine
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JPH078300B2 (ja) * 1988-06-21 1995-02-01 三菱電機株式会社 荷電粒子ビームの照射装置
JPH0695031B2 (ja) * 1988-10-31 1994-11-24 株式会社島津製作所 電磁流量計
DE3907057A1 (de) * 1989-03-04 1990-09-13 Thomson Brandt Gmbh Schaltungsanordnung zur umkehrung eines magnetfeldes
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US5350992A (en) * 1991-09-17 1994-09-27 Micro-Trak Systems, Inc. Motor control circuit
DE59509590D1 (de) * 1995-10-20 2001-10-18 Flowtec Ag Magnetisch-induktiver Durchflussmesser zur Messung von nicht-newtonschen Flüssigkeiten
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US10088452B2 (en) 2016-01-12 2018-10-02 Lockheed Martin Corporation Method for detecting defects in conductive materials based on differences in magnetic field characteristics measured along the conductive materials
US9557391B2 (en) 2015-01-23 2017-01-31 Lockheed Martin Corporation Apparatus and method for high sensitivity magnetometry measurement and signal processing in a magnetic detection system
US9910104B2 (en) 2015-01-23 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
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US9614589B1 (en) 2015-12-01 2017-04-04 Lockheed Martin Corporation Communication via a magnio
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US10571530B2 (en) 2016-05-31 2020-02-25 Lockheed Martin Corporation Buoy array of magnetometers
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US10345395B2 (en) 2016-12-12 2019-07-09 Lockheed Martin Corporation Vector magnetometry localization of subsurface liquids
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Also Published As

Publication number Publication date
GB2084827A (en) 1982-04-15
CH655795A5 (de) 1986-05-15
BE890573A (fr) 1982-02-01
DE3037305C2 (de) 1986-04-03
NL8104462A (nl) 1982-05-03
FR2491620A1 (fr) 1982-04-09
JPS5764910A (en) 1982-04-20
DE3037305A1 (de) 1982-06-24
IT1138649B (it) 1986-09-17
JPS6325691B2 (it) 1988-05-26
SE8105807L (sv) 1982-04-03
FR2491620B1 (fr) 1986-05-30
DD201727A5 (de) 1983-08-03
SE458311B (sv) 1989-03-13
US4410926A (en) 1983-10-18
GB2084827B (en) 1984-09-05

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