BE890573A - Dispositif pour produire des champs magnetiques continus de polarite alternante pour la mesure magneto-inductive de debit - Google Patents

Dispositif pour produire des champs magnetiques continus de polarite alternante pour la mesure magneto-inductive de debit

Info

Publication number
BE890573A
BE890573A BE2/59391A BE2059391A BE890573A BE 890573 A BE890573 A BE 890573A BE 2/59391 A BE2/59391 A BE 2/59391A BE 2059391 A BE2059391 A BE 2059391A BE 890573 A BE890573 A BE 890573A
Authority
BE
Belgium
Prior art keywords
magneto
magnetic fields
flow measurement
continuous magnetic
inductive flow
Prior art date
Application number
BE2/59391A
Other languages
English (en)
Inventor
P Hafner
P Flecken
Original Assignee
Flowtec A G
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 A G filed Critical Flowtec A G
Publication of BE890573A publication Critical patent/BE890573A/fr

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)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measuring Volume Flow (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Relay Circuits (AREA)
  • Rectifiers (AREA)
BE2/59391A 1980-10-02 1981-10-01 Dispositif pour produire des champs magnetiques continus de polarite alternante pour la mesure magneto-inductive de debit BE890573A (fr)

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 (1)

Publication Number Publication Date
BE890573A true BE890573A (fr) 1982-02-01

Family

ID=6113475

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/59391A BE890573A (fr) 1980-10-02 1981-10-01 Dispositif pour produire des champs magnetiques continus de polarite alternante pour la mesure magneto-inductive de debit

Country Status (11)

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

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US20160216304A1 (en) 2015-01-28 2016-07-28 Lockheed Martin Corporation Rapid high-resolution magnetic field measurements for power line inspection
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US9853837B2 (en) 2014-04-07 2017-12-26 Lockheed Martin Corporation High bit-rate magnetic communication
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US9910104B2 (en) 2015-01-23 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US9638821B2 (en) 2014-03-20 2017-05-02 Lockheed Martin Corporation Mapping and monitoring of hydraulic fractures using vector magnetometers
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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
US10168393B2 (en) 2014-09-25 2019-01-01 Lockheed Martin Corporation Micro-vacancy center device
US10006973B2 (en) 2016-01-21 2018-06-26 Lockheed Martin Corporation Magnetometer with a light emitting diode
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US9541610B2 (en) 2015-02-04 2017-01-10 Lockheed Martin Corporation Apparatus and method for recovery of three dimensional magnetic field from a magnetic detection system
US10338162B2 (en) 2016-01-21 2019-07-02 Lockheed Martin Corporation AC vector magnetic anomaly detection with diamond nitrogen vacancies
WO2015157290A1 (fr) 2014-04-07 2015-10-15 Lockheed Martin Corporation Circuit générateur de champ magnétique à commande orientée vers l'efficacité énergétique
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US10527746B2 (en) 2016-05-31 2020-01-07 Lockheed Martin Corporation Array of UAVS with magnetometers
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US10317279B2 (en) 2016-05-31 2019-06-11 Lockheed Martin Corporation Optical filtration system for diamond material with nitrogen vacancy centers
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Also Published As

Publication number Publication date
JPS5764910A (en) 1982-04-20
JPS6325691B2 (fr) 1988-05-26
IT1138649B (it) 1986-09-17
SE8105807L (sv) 1982-04-03
FR2491620A1 (fr) 1982-04-09
IT8124179A0 (it) 1981-09-28
FR2491620B1 (fr) 1986-05-30
NL8104462A (nl) 1982-05-03
GB2084827A (en) 1982-04-15
CH655795A5 (de) 1986-05-15
DE3037305C2 (de) 1986-04-03
DD201727A5 (de) 1983-08-03
US4410926A (en) 1983-10-18
GB2084827B (en) 1984-09-05
DE3037305A1 (de) 1982-06-24
SE458311B (sv) 1989-03-13

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: FLOWTEC A.G.

Effective date: 19911031