NO122538B - - Google Patents

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Publication number
NO122538B
NO122538B NO153885A NO15388564A NO122538B NO 122538 B NO122538 B NO 122538B NO 153885 A NO153885 A NO 153885A NO 15388564 A NO15388564 A NO 15388564A NO 122538 B NO122538 B NO 122538B
Authority
NO
Norway
Prior art keywords
tongue
tongues
mark
index card
hook
Prior art date
Application number
NO153885A
Other languages
English (en)
Norwegian (no)
Inventor
T Haley
Original Assignee
Halmar Electronics
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 Halmar Electronics filed Critical Halmar Electronics
Publication of NO122538B publication Critical patent/NO122538B/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/07—Hall effect devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
    • G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Toys (AREA)
NO153885A 1963-07-05 1964-07-02 NO122538B (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US292952A US3323056A (en) 1963-07-05 1963-07-05 D.c. measurement using conductor surrounding core with plural hall generators havingindividual feedback coils

Publications (1)

Publication Number Publication Date
NO122538B true NO122538B (ja) 1971-07-12

Family

ID=23126955

Family Applications (1)

Application Number Title Priority Date Filing Date
NO153885A NO122538B (ja) 1963-07-05 1964-07-02

Country Status (8)

Country Link
US (1) US3323056A (ja)
JP (1) JPS4825949B1 (ja)
BE (1) BE650176A (ja)
CH (1) CH415835A (ja)
GB (1) GB1059288A (ja)
NL (1) NL143698B (ja)
NO (1) NO122538B (ja)
SE (1) SE328342B (ja)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525041A (en) * 1966-08-08 1970-08-18 Tektronix Inc Magnetic field measuring method and device effective over a wide frequency range
US4278940A (en) * 1979-04-25 1981-07-14 General Electric Company Means for automatically compensating DC magnetization in a transformer
US4283643A (en) * 1979-05-25 1981-08-11 Electric Power Research Institute, Inc. Hall sensing apparatus
US4378525A (en) * 1980-09-18 1983-03-29 Burdick Neal M Method and apparatus for measuring a DC current in a wire without making a direct connection to the wire
CH650357A5 (de) * 1981-03-26 1985-07-15 Landis & Gyr Ag Magnetkernloser messwandler zum potentialfreien messen eines messstromes.
US4504787A (en) * 1982-04-05 1985-03-12 Honeywell Inc. Electronic watthour meter
JPS6060562A (ja) * 1983-09-13 1985-04-08 Mitsubishi Electric Corp 電流検出回路
US4717872A (en) * 1985-01-28 1988-01-05 Watt Watcher Inc. Device for monitoring consumption of electrical power
JPS61263100A (ja) * 1985-05-17 1986-11-21 Hitachi Ltd Ｘ線装置の電流測定装置
US4914383A (en) * 1985-10-10 1990-04-03 Wilkerson A W Non-contact ammeter
US4656418A (en) * 1986-01-27 1987-04-07 Snap-On Tools Corporation Molded clamp-type ammeter probe
FR2611051B1 (fr) * 1987-02-12 1989-07-21 Suditec France Sud Innovation Dispositif de mesure de l'intensite d'un courant electrique alternatif a l'aide d'une sonde a effet hall
EP0292636A1 (de) * 1987-05-26 1988-11-30 Landis & Gyr Betriebs AG Messwandler zum Messen des in einem elektrischen Leiter fliessenden Stromes
US5014043A (en) * 1987-12-07 1991-05-07 Southern California Edison Current sensing
US4851803A (en) * 1988-07-25 1989-07-25 E-Mon Corporation Split core insulator and locking device
JPH04252934A (ja) * 1991-01-29 1992-09-08 Sanki Eng Kk 多向流式遠心連続多段抽出装置
CH684504A5 (de) * 1991-01-29 1994-09-30 Asahi Kasei Denshi Kk Vorrichtung zum Nachweis eines elektrischen Stromes.
DE9113081U1 (de) * 1991-10-21 1991-12-12 Siemens AG, 8000 München Stromsensor mit integrierter Hallschaltung
DE4423429A1 (de) * 1994-07-05 1996-01-11 Vacuumschmelze Gmbh Stromsensor nach dem Kompensationsprinzip
JPH08273952A (ja) * 1995-03-31 1996-10-18 Ikuro Moriwaki 平面電流検出器
US7043380B2 (en) 2003-09-16 2006-05-09 Rodenberg Iii Ernest Adolph Programmable electricity consumption monitoring system and method
DE102005040316B4 (de) * 2005-08-25 2007-09-27 Lisa Dräxlmaier GmbH Vorrichtung und Verfahren zur Messung eines in einem elektrischen Leiter fließenden Stromes
DE102007036573A1 (de) * 2007-08-03 2009-02-19 Epcos Ag Anordnung und Verfahren zur Messung eines in einem elektrischen Leiter fließenden Stroms
KR100877450B1 (ko) * 2007-10-10 2009-01-07 김장수 관통구 개폐구조를 갖는 폐회로 전류변성기
JP4890506B2 (ja) * 2008-06-26 2012-03-07 株式会社タムラ製作所 電流検出器
US8330449B2 (en) * 2009-07-20 2012-12-11 Fluke Corporation Clamp-on multimeters including a Rogowski coil for measuring alternating current in a conductor
CN102129059A (zh) * 2011-01-19 2011-07-20 四川电力科学研究院 电流互感器校验用5ka零磁道式直流电流比较仪
US20120280680A1 (en) * 2011-05-06 2012-11-08 Kuo Kuei-Wei Hall integrated circuit package
CN202661525U (zh) * 2012-01-19 2013-01-09 邹高芝 穿芯式高精度开环型霍尔电流传感器用同轴双环路磁芯结构组件
US9285437B2 (en) * 2013-10-02 2016-03-15 Rockwell Automation Technologies, Inc. Hall effect sensor core with multiple air gaps
CN104749393B (zh) * 2013-12-31 2019-08-20 森萨塔科技麻省公司 一种霍尔传感器装置及其制造方法
DE102015205794A1 (de) * 2015-03-31 2016-10-06 Siemens Aktiengesellschaft Strommessvorrichtung und Verfahren zur Bestimmung eines elektrischen Stroms
DE102017004349A1 (de) * 2017-05-08 2018-11-08 Tdk-Micronas Gmbh Magnetfeldkompensationseinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB344575A (en) * 1929-12-30 1931-03-12 British Thomson Houston Co Ltd Improvements relating to instrument transformers
US2236277A (en) * 1939-04-14 1941-03-25 Gen Electric Protection of permanent magnets in meters
US2800630A (en) * 1952-11-28 1957-07-23 Gen Electric Reactor for measuring direct currents
US2928048A (en) * 1956-08-27 1960-03-08 Mc Graw Edison Co Electrical measuring system
DE1114542B (de) * 1957-03-29 1961-10-05 Siemens Ag Einrichtung zur Verstaerkung mit Hallspannungserzeugern
CA618580A (en) * 1958-06-10 1961-04-18 Christensen Bent Direct current transformer device

Also Published As

Publication number Publication date
JPS4825949B1 (ja) 1973-08-02
NL143698B (nl) 1974-10-15
BE650176A (ja)
GB1059288A (en) 1967-02-15
US3323056A (en) 1967-05-30
NL6407618A (ja) 1965-01-06
SE328342B (ja) 1970-09-14
CH415835A (fr) 1966-06-30

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