SE8105807L - Anordning for alstring av stationera magnetfelt med vexlande polaritet for magnetisk-induktiv genomstromningsmetning - Google Patents

Anordning for alstring av stationera magnetfelt med vexlande polaritet for magnetisk-induktiv genomstromningsmetning

Info

Publication number
SE8105807L
SE8105807L SE8105807A SE8105807A SE8105807L SE 8105807 L SE8105807 L SE 8105807L SE 8105807 A SE8105807 A SE 8105807A SE 8105807 A SE8105807 A SE 8105807A SE 8105807 L SE8105807 L SE 8105807L
Authority
SE
Sweden
Prior art keywords
magnetic
inductive flow
generation
field coil
alternate polarity
Prior art date
Application number
SE8105807A
Other languages
Unknown language ( )
English (en)
Other versions
SE458311B (sv
Inventor
P Hafner
P Flecken
Original Assignee
Flowtec Ab
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 Ab filed Critical Flowtec Ab
Publication of SE8105807L publication Critical patent/SE8105807L/sv
Publication of SE458311B publication Critical patent/SE458311B/sv

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)
  • Rectifiers (AREA)
  • Relay Circuits (AREA)
SE8105807A 1980-10-02 1981-10-01 Anordning foer alstring av stationaera magnetfaelt med omvaexlande polaritet foer magnetisk- induktiv genomstroemningsmaetning SE458311B (sv)

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
SE8105807L true SE8105807L (sv) 1982-04-03
SE458311B SE458311B (sv) 1989-03-13

Family

ID=6113475

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8105807A SE458311B (sv) 1980-10-02 1981-10-01 Anordning foer alstring av stationaera magnetfaelt med omvaexlande polaritet foer magnetisk- induktiv genomstroemningsmaetning

Country Status (11)

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

Families Citing this family (97)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334152A1 (de) * 1983-09-21 1985-04-04 Fischer & Porter GmbH, 3400 Göttingen Magnetisch induktiver durchflussmesser
DE3442272A1 (de) * 1984-11-20 1986-05-22 Turbo-Werk Messtechnik GmbH, 5000 Köln Induktiver durchflussmesser
AT392384B (de) * 1985-02-04 1991-03-25 Zumtobel Ag Vorschaltgeraet zum betrieb von gasentladungslampen mit gleichstrom
DE3512921A1 (de) * 1985-04-11 1986-10-16 Turbo-Werk Messtechnik GmbH, 5000 Köln Schaltungsanordnung zur erzeugung eines pulsierenden magnetischen feldes in der erregerspule eines induktiven durchflussmessers
GB8530930D0 (en) * 1985-12-16 1986-01-29 Mansfield P Inductive circuit arrangements
DE3616407A1 (de) * 1986-05-15 1987-11-19 Bopp & Reuther Gmbh Induktiver durchflussmesser
NL8601331A (nl) * 1986-05-26 1987-12-16 At & T & Philips Telecomm Zender voor isdn s-bus koppelvlakcircuit.
EP0250718A1 (de) * 1986-06-30 1988-01-07 Siemens Aktiengesellschaft Stromversorgung für einen induktiven Verbraucher, insbesondere eine Gradientenspule, mit Steuer- und Regeleinrichtung
NL8601798A (nl) * 1986-07-10 1988-02-01 Hollandse Signaalapparaten Bv Energieomzetter.
US4868504A (en) * 1987-02-09 1989-09-19 Flr, Inc. Apparatus and method for locating metal objects and minerals in the ground with return of energy from transmitter coil to power supply
US4879641A (en) * 1987-11-02 1989-11-07 Sgs-Thomson Microelectronics S.R.L. Analog multiplex for sensing the magnitude and sense of the current through a h-bridge stage utilizing a single sensing resistance
EP0332974B1 (de) * 1988-03-18 1992-10-14 Siemens Aktiengesellschaft Kurzschlussschutz für eine motorisch sowie generatorisch betreibbare pulsumrichtergespeiste elektrische Maschine
US4916381A (en) * 1988-05-12 1990-04-10 Rosemount Inc. Current source for a variable load with an inductive component
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
US4920470A (en) * 1989-05-17 1990-04-24 Zirco, Inc. Voltage inverter
US5222012A (en) * 1991-01-17 1993-06-22 International Business Machines Corporation Power management circuit for a magnetic repulsion punch
ES2078995T3 (es) * 1991-06-08 1996-01-01 Flowtec Ag Medidor de caudal magnetico-inductivo.
US5350992A (en) * 1991-09-17 1994-09-27 Micro-Trak Systems, Inc. Motor control circuit
DK0770855T4 (da) * 1995-10-20 2004-11-01 Endress & Hauser Deutschland H Magnetisk-induktiv gennemströmningsmåler til måling af ikke-newtonske væsker
UA53671C2 (uk) * 1996-11-07 2003-02-17 Англо Амерікан Корпорейшн Оф Саут Африка Лімітед Генератор імпульсів для збудження котушки періодичними біполярними імпульсами (варіанти) та спосіб генерування послідовності періодичних біполярних імпульсів струму (варіанти)
JP2976923B2 (ja) * 1997-04-25 1999-11-10 日本電気株式会社 容量性負荷の駆動装置
WO1999016056A1 (fr) * 1997-09-22 1999-04-01 Matsushita Electric Industrial Co., Ltd. Circuit de commande d'ecriture
US6031740A (en) * 1998-07-03 2000-02-29 Endress + Hauser Flowtec Ag Method of regulating the coil current of electromagnetic flow sensors
JP3043757B2 (ja) * 1998-07-03 2000-05-22 エンドレス ウント ハウザー フローテック アクチエンゲゼルシャフト コイルアセンブリを流れるコイル電流の調整方法
EP0969268A1 (de) * 1998-07-03 2000-01-05 Endress + Hauser Flowtec AG Verfahren zum Regeln des Spulenstroms von magnetisch-induktiven Durchflussaufnehmern
DE19905003A1 (de) * 1999-02-08 2000-08-10 Wagner Kg Umpolsteuergerät
US6218831B1 (en) * 1999-05-19 2001-04-17 Arthur D. Little, Inc. Low power fluxgate circuit with current balance
EP1158279A1 (de) 2000-05-22 2001-11-28 Endress + Hauser Flowtec AG Stromregel-Schaltung eines magnetisch-induktiven Durchflussmessgerät zum Erzeugen eines Speisestroms für eine Erreger-Schaltung
SG96239A1 (en) 2000-09-27 2003-05-23 Seagate Technology Llc Data head writer coil testing
AUPR083800A0 (en) * 2000-10-17 2000-11-09 Bhc Consulting Pty Ltd Ground mineralisation rejecting metal detector (power saving)
GB0200030D0 (en) 2002-01-02 2002-02-13 Bae Systems Plc A switching circuit and a method of operation thereof
GB0200027D0 (en) 2002-01-02 2002-02-13 Bae Systems Plc Improvements relating to operation of a current controller
GB0200024D0 (en) 2002-01-02 2002-02-13 Bae Systems Plc A switching circuit and a method of operation thereof
DE10356009B4 (de) * 2003-11-27 2007-10-18 Krohne Meßtechnik GmbH & Co KG Magnetisch-induktives Durchflußmeßgerät und Verfahren zum Betreiben eines magnetisch-induktiven Durchflußmeßgeräts
DE102004046238A1 (de) 2004-09-22 2006-03-23 Endress + Hauser Flowtec Ag Magnetisch-induktives Durchflussmessgerät
DE102005016826A1 (de) * 2005-04-12 2006-10-19 Trw Automotive Gmbh Ansteuerschaltung für einen impulsgesteuerten Aktor
US7194918B2 (en) * 2005-08-26 2007-03-27 Krohne Messtechnik Gmbh & Co. Kg Magnetoinductive flowmeter and method for operating a magnetoinductive flowmeter
JP4761219B2 (ja) * 2007-03-27 2011-08-31 独立行政法人情報通信研究機構 水平面ビーム走査型アンテナ
DE102007015368A1 (de) 2007-03-28 2008-10-02 Endress + Hauser Flowtec Ag Verfahren zum Betreiben eines magnetisch-induktiven Durchflußmeßgeräts
DE102011087827A1 (de) * 2011-12-06 2013-06-06 Endress + Hauser Flowtec Ag Verfahren und Schaltung zur Netzsynchronisation eines magnetisch-induktiven Durchflussmessgeräts
AU2012101855A4 (en) 2011-12-19 2013-01-24 Minelab Electronics Pty Limited Coil arrangement
JP5843670B2 (ja) * 2012-03-15 2016-01-13 アズビル株式会社 電磁流量計の励磁回路
CN102680934A (zh) * 2012-05-31 2012-09-19 株洲南车时代电气股份有限公司 电流传感器测试用电流换向装置
JP2014128175A (ja) * 2012-12-27 2014-07-07 Nidec Sankyo Corp 磁界発生装置および磁気記録媒体処理装置
WO2014141285A1 (en) * 2013-03-14 2014-09-18 Given Imaging Ltd. Method and circuit for muting electromagnetic interference during maneuvering of a device
US9910104B2 (en) 2015-01-23 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US10168393B2 (en) 2014-09-25 2019-01-01 Lockheed Martin Corporation Micro-vacancy center device
US9824597B2 (en) 2015-01-28 2017-11-21 Lockheed Martin Corporation Magnetic navigation methods and systems utilizing power grid and communication network
US9853837B2 (en) 2014-04-07 2017-12-26 Lockheed Martin Corporation High bit-rate magnetic communication
US10241158B2 (en) 2015-02-04 2019-03-26 Lockheed Martin Corporation Apparatus and method for estimating absolute axes' orientations for a magnetic detection system
US9910105B2 (en) 2014-03-20 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US9829545B2 (en) 2015-11-20 2017-11-28 Lockheed Martin Corporation Apparatus and method for hypersensitivity detection of magnetic field
US9835693B2 (en) 2016-01-21 2017-12-05 Lockheed Martin Corporation Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control
US10520558B2 (en) 2016-01-21 2019-12-31 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with nitrogen-vacancy center diamond located between dual RF sources
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
US9638821B2 (en) 2014-03-20 2017-05-02 Lockheed Martin Corporation Mapping and monitoring of hydraulic fractures using vector magnetometers
US9590601B2 (en) 2014-04-07 2017-03-07 Lockheed Martin Corporation Energy efficient controlled magnetic field generator circuit
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
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
US10338162B2 (en) 2016-01-21 2019-07-02 Lockheed Martin Corporation AC vector magnetic anomaly detection with diamond nitrogen vacancies
US10012704B2 (en) 2015-11-04 2018-07-03 Lockheed Martin Corporation Magnetic low-pass filter
WO2016122965A1 (en) 2015-01-28 2016-08-04 Lockheed Martin Corporation In-situ power charging
GB2560283A (en) 2015-11-20 2018-09-05 Lockheed Corp Apparatus and method for closed loop processing for a magnetic detection system
WO2017095454A1 (en) 2015-12-01 2017-06-08 Lockheed Martin Corporation Communication via a magnio
WO2017127098A1 (en) 2016-01-21 2017-07-27 Lockheed Martin Corporation Diamond nitrogen vacancy sensed ferro-fluid hydrophone
AU2016388316A1 (en) 2016-01-21 2018-09-06 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with common RF and magnetic fields generator
GB2562958A (en) 2016-01-21 2018-11-28 Lockheed Corp Magnetometer with a light emitting diode
WO2017127081A1 (en) 2016-01-21 2017-07-27 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with circuitry on diamond
GB2562957A (en) 2016-01-21 2018-11-28 Lockheed Corp Magnetometer with light pipe
US10677953B2 (en) 2016-05-31 2020-06-09 Lockheed Martin Corporation Magneto-optical detecting apparatus and methods
US10527746B2 (en) 2016-05-31 2020-01-07 Lockheed Martin Corporation Array of UAVS with magnetometers
US10359479B2 (en) 2017-02-20 2019-07-23 Lockheed Martin Corporation Efficient thermal drift compensation in DNV vector magnetometry
US10345395B2 (en) 2016-12-12 2019-07-09 Lockheed Martin Corporation Vector magnetometry localization of subsurface liquids
US10330744B2 (en) 2017-03-24 2019-06-25 Lockheed Martin Corporation Magnetometer with a waveguide
US10408890B2 (en) 2017-03-24 2019-09-10 Lockheed Martin Corporation Pulsed RF methods for optimization of CW measurements
US20170343621A1 (en) 2016-05-31 2017-11-30 Lockheed Martin Corporation Magneto-optical defect center magnetometer
US10281550B2 (en) 2016-11-14 2019-05-07 Lockheed Martin Corporation Spin relaxometry based molecular sequencing
US10371765B2 (en) 2016-07-11 2019-08-06 Lockheed Martin Corporation Geolocation of magnetic sources using vector magnetometer sensors
DE102016110024A1 (de) 2016-05-31 2017-11-30 Endress + Hauser Flowtec Ag Verfahren zum Betreiben eines magnetisch-induktiven Durchflussmessgeräts zur Messung der Durchflussgeschwindigkeit oder des Volumendurchflusses eines Mediums in einem Messrohr
US10345396B2 (en) 2016-05-31 2019-07-09 Lockheed Martin Corporation Selected volume continuous illumination magnetometer
US10338163B2 (en) 2016-07-11 2019-07-02 Lockheed Martin Corporation Multi-frequency excitation schemes for high sensitivity magnetometry measurement with drift error compensation
US10274550B2 (en) 2017-03-24 2019-04-30 Lockheed Martin Corporation High speed sequential cancellation for pulsed mode
US10145910B2 (en) 2017-03-24 2018-12-04 Lockheed Martin Corporation Photodetector circuit saturation mitigation for magneto-optical high intensity pulses
US10571530B2 (en) 2016-05-31 2020-02-25 Lockheed Martin Corporation Buoy array of magnetometers
US10228429B2 (en) 2017-03-24 2019-03-12 Lockheed Martin Corporation Apparatus and method for resonance magneto-optical defect center material pulsed mode referencing
US10317279B2 (en) 2016-05-31 2019-06-11 Lockheed Martin Corporation Optical filtration system for diamond material with nitrogen vacancy centers
US10371760B2 (en) 2017-03-24 2019-08-06 Lockheed Martin Corporation Standing-wave radio frequency exciter
US10338164B2 (en) 2017-03-24 2019-07-02 Lockheed Martin Corporation Vacancy center material with highly efficient RF excitation
US10379174B2 (en) 2017-03-24 2019-08-13 Lockheed Martin Corporation Bias magnet array for magnetometer
US10459041B2 (en) 2017-03-24 2019-10-29 Lockheed Martin Corporation Magnetic detection system with highly integrated diamond nitrogen vacancy sensor
DE102017107417A1 (de) 2017-04-06 2018-10-11 Endress+Hauser Flowtec Ag Verfahren zum Regeln eines in einer Spulenanordnung fließenden Spulenstroms und eine Schaltungsanordnung
JP6999300B2 (ja) * 2017-06-30 2022-01-18 日本電産サンキョー株式会社 磁気記録媒体処理装置および妨害磁界発生方法
EP3649438A1 (en) * 2017-07-07 2020-05-13 Apator Miitors ApS Electromagnetic flow meter
EP3460419B1 (de) * 2017-09-22 2020-04-01 VEGA Grieshaber KG Messanordnung, messgerät mit einer messanordnung und verfahren zum betreiben des messgeräts
DE102022134361A1 (de) 2022-12-21 2024-06-27 Endress+Hauser Flowtec Ag Vorrichtung zum Bereitstellen eines Erregungsstroms an einem magnetisch-induktiven Durchflussmessgerät und magnetisch-induktives Durchflussmessgerät

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284692A (en) * 1963-06-05 1966-11-08 Lambda Electronics Corp Compensated regulated power supply
US3684983A (en) * 1970-06-19 1972-08-15 E & M Lab High speed circulator switch
US3733538A (en) * 1972-03-28 1973-05-15 Westinghouse Electric Corp Apparatus for limiting instantaneous inverter current
US3896346A (en) * 1972-11-21 1975-07-22 Electronic Camshaft Corp High speed electromagnet control circuit
US3893006A (en) * 1974-01-14 1975-07-01 Nordson Corp High voltage power supply with overcurrent protection
US3955413A (en) * 1974-03-27 1976-05-11 Steele James R Electrical system for electromagnetically measuring flow of fluid
DE2744845C3 (de) * 1977-10-05 1985-08-08 Flowtec AG, Reinach, Basel Verfahren zur Kompensation der elektrochemischen Störgleichspannung bei der magnetisch-induktiven Durchflußmessung mit periodisch umgepoltem magnetischem Gleichfeld
DE2934990C2 (de) * 1979-08-30 1985-04-18 Eckardt Ag, 7000 Stuttgart Anordnung zur magnetischen Durchflußmessung

Also Published As

Publication number Publication date
DE3037305A1 (de) 1982-06-24
IT8124179A0 (it) 1981-09-28
FR2491620B1 (fr) 1986-05-30
BE890573A (fr) 1982-02-01
CH655795A5 (de) 1986-05-15
GB2084827A (en) 1982-04-15
DD201727A5 (de) 1983-08-03
GB2084827B (en) 1984-09-05
DE3037305C2 (de) 1986-04-03
IT1138649B (it) 1986-09-17
US4410926A (en) 1983-10-18
SE458311B (sv) 1989-03-13
NL8104462A (nl) 1982-05-03
JPS5764910A (en) 1982-04-20
JPS6325691B2 (sv) 1988-05-26
FR2491620A1 (fr) 1982-04-09

Similar Documents

Publication Publication Date Title
SE8105807L (sv) Anordning for alstring av stationera magnetfelt med vexlande polaritet for magnetisk-induktiv genomstromningsmetning
US4727755A (en) Electromagnetic flowmeter with alternating permanent magnet field
GB1492212A (en) Devices for measuring the density of liquids
JPS56158967A (en) Magnetism detector
SU731337A1 (ru) Электромагнитный вибростенд
SU1285566A1 (ru) Генератор пр моугольных импульсов
SU501476A1 (ru) Широтно-импульсный модул тор
US3170102A (en) Ultrasonic transducers
SU366341A1 (ru) Дифференциально-трансформаторный преобразователь перемещений
SU954981A1 (ru) Импульсный стабилизатор посто нного напр жени
RU2034300C1 (ru) Устройство для бесконтактного измерения частоты вращения колеса транспортного средства
SU1101986A1 (ru) Способ преобразовани посто нного тока в посто нное напр жение
SU464879A1 (ru) Устройство дл измерени напр женности посто нного магнитного пол
SU543997A1 (ru) Модулирующий преобразователь электрических величин
SU698061A1 (ru) Импульсное намагничивающее устройство
SU467277A1 (ru) Линейный преобразователь посто нного напр жени
SU391739A1 (ru) Биполярный триггер
SU494710A1 (ru) Устройство дл измерени потока насыщени тонких ферромагнитных пленок
JPS5556606A (en) Magnetizing device
SU1042054A1 (ru) Преобразователь перемещени в код
SU391515A1 (ru) Аппаратура для индукционного каротажа
SU423238A1 (ru) Преобразователь параметров электрическихцепей в период
SU1019563A1 (ru) Измерительный преобразователь посто нного тока
SU942226A1 (ru) Параллельный инвертор
SU341419A1 (ru) Устройство формирования плоской вершины трапецеидального магнитного поля синхротрона

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8105807-5

Effective date: 19920510

Format of ref document f/p: F