GB1381307A - Method for the measurement of direct currents with floating input and direct time indication - Google Patents

Method for the measurement of direct currents with floating input and direct time indication

Info

Publication number
GB1381307A
GB1381307A GB1216772A GB1216772A GB1381307A GB 1381307 A GB1381307 A GB 1381307A GB 1216772 A GB1216772 A GB 1216772A GB 1216772 A GB1216772 A GB 1216772A GB 1381307 A GB1381307 A GB 1381307A
Authority
GB
United Kingdom
Prior art keywords
direct
signal
current
unknown
measurement
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
Application number
GB1216772A
Other languages
English (en)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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
Priority claimed from DE19712112315 external-priority patent/DE2112315C3/de
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1381307A publication Critical patent/GB1381307A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
GB1216772A 1971-03-15 1972-03-15 Method for the measurement of direct currents with floating input and direct time indication Expired GB1381307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712112315 DE2112315C3 (de) 1971-03-15 Verfahren zur potentialfreien Messung von Gleichströmen mit direkter Zeitverschlüsselung

Publications (1)

Publication Number Publication Date
GB1381307A true GB1381307A (en) 1975-01-22

Family

ID=5801556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1216772A Expired GB1381307A (en) 1971-03-15 1972-03-15 Method for the measurement of direct currents with floating input and direct time indication

Country Status (3)

Country Link
US (1) US3812428A (enExample)
FR (1) FR2130303B1 (enExample)
GB (1) GB1381307A (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO137466C (no) * 1974-09-04 1978-03-01 Siemens Ag Omformer for likestroemsignaler.
US4021729A (en) * 1975-12-03 1977-05-03 I-T-E Imperial Corporation Cross-field ground fault sensor
US4050013A (en) * 1976-02-25 1977-09-20 Western Electric Company, Incorporated Magnetic field probe which measures switching current of magnetic element at moment the element switches as measure of external field
GB2000873B (en) * 1977-07-08 1982-05-26 Landis & Gyr Ag Measuring transformers for potential-free measurement of currents or voltages and static electricity meters including such transformers
US4314200A (en) * 1977-09-01 1982-02-02 Bbc Brown, Boveri & Company Limited Method and apparatus for detection of magnetization
US4309655A (en) * 1978-06-23 1982-01-05 Lgz Landis & Gyr Zug Ag Measuring transformer
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
DE3040316C2 (de) * 1980-10-25 1983-11-10 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Verfahren und Vorrichtung zur kontaktlosen Messung von Gleich- und Wechselströmen, insbesondere von Strom-Augenblickswerten
JPS5924260A (ja) * 1982-07-31 1984-02-07 Saura Keiki Seisakusho:Kk マグネツトメ−タの設定方向測定方式
DE3345712A1 (de) * 1983-12-17 1985-06-27 Robert Bosch Gmbh, 7000 Stuttgart Magnetometer mit zeitverschluesselung zur messung von magnetfeldern
DE3345713A1 (de) * 1983-12-17 1985-06-27 Robert Bosch Gmbh, 7000 Stuttgart Magnetometer mit zeitverschluesselung
US5103111A (en) * 1989-03-30 1992-04-07 S&C Electric Company Switch configuration with integral sensing and power supply apparatus
US5097202A (en) * 1989-06-05 1992-03-17 Sigma Instruments, Inc. Faulted current indicators with improved signal to noise ratios
US5055771A (en) * 1989-08-21 1991-10-08 Sigma Instruments, Inc. Faulted current indicators with improved signal to noise ratios
EP0438616B1 (de) * 1990-01-23 1994-04-20 Siemens Aktiengesellschaft Strom-Spannungswandler für elektronische Haushaltszähler
US6653831B2 (en) * 2001-11-20 2003-11-25 Gentex Corporation Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same
AU2003206903A1 (en) * 2003-01-31 2004-08-23 Commissariat Energie Atomique Device for sensing rf field
US7176698B2 (en) * 2003-10-10 2007-02-13 Primary Integration, Llc Voltage sensing device and associated method
DE102004021495A1 (de) * 2004-04-30 2005-11-24 Vacuumschmelze Gmbh & Co. Kg Stromsensor
IT1391430B1 (it) * 2008-08-28 2011-12-23 Sirti Spa Metodo e apparato per la misurazione di correnti continue che scorrono in linee elettriche
CN102437767B (zh) * 2011-12-22 2014-01-29 广州金升阳科技有限公司 一种自激推挽式变换器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524285A (en) * 1914-07-30 1925-01-27 Besag Ernst Method of and means for measuring electric current

Also Published As

Publication number Publication date
FR2130303A1 (enExample) 1972-11-03
FR2130303B1 (enExample) 1978-10-27
DE2112315B2 (de) 1975-06-12
DE2112315A1 (de) 1972-09-21
US3812428A (en) 1974-05-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee