ATE3T1 - METHOD AND CIRCUIT FOR CONTACTLESS MEASUREMENT OF DIRECT AND AC CURRENT - Google Patents

METHOD AND CIRCUIT FOR CONTACTLESS MEASUREMENT OF DIRECT AND AC CURRENT

Info

Publication number
ATE3T1
ATE3T1 AT79102005T AT79102005T ATE3T1 AT E3 T1 ATE3 T1 AT E3T1 AT 79102005 T AT79102005 T AT 79102005T AT 79102005 T AT79102005 T AT 79102005T AT E3 T1 ATE3 T1 AT E3T1
Authority
AT
Austria
Prior art keywords
current
flows
field plate
direct
circuit
Prior art date
Application number
AT79102005T
Other languages
German (de)
Inventor
Horst Fleissner
Gerfried Leberl
Original Assignee
Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig
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 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig filed Critical Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig
Application granted granted Critical
Publication of ATE3T1 publication Critical patent/ATE3T1/en

Links

Classifications

    • 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
    • G01R15/205—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 magneto-resistance devices, e.g. field plates

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measuring Magnetic Variables (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

1. A method of measuring DC and AC currents without the use of contacts by using an iron core (10) provided with an air gap (11), comprising a field plate (17) through which a control current (lSt ) flows and at least one winding (14) through which a measuring current (lm ) flows, characterised in that, at least one further winding (13), through which a pre-magnetising current (l0 ) flows, is arranged on the iron core (10) wherein the through flow is varied at short time intervals to an accurately defined extent, the actual variations of the field plate voltage thus produced are compared with the desired-variations and any deviations which occur are corrected by varying the control current (lSt ) in the field plate (17) or the pre-magnetising current (l0 ).
AT79102005T 1978-06-23 1979-06-18 METHOD AND CIRCUIT FOR CONTACTLESS MEASUREMENT OF DIRECT AND AC CURRENT ATE3T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2827601A DE2827601C2 (en) 1978-06-23 1978-06-23 Method for contactless measurement of direct and alternating currents
EP79102005A EP0006565B1 (en) 1978-06-23 1979-06-18 Method and circuit for contactless measuring of direct and alternative currents

Publications (1)

Publication Number Publication Date
ATE3T1 true ATE3T1 (en) 1981-02-15

Family

ID=6042574

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79102005T ATE3T1 (en) 1978-06-23 1979-06-18 METHOD AND CIRCUIT FOR CONTACTLESS MEASUREMENT OF DIRECT AND AC CURRENT

Country Status (3)

Country Link
EP (1) EP0006565B1 (en)
AT (1) ATE3T1 (en)
DE (2) DE2827601C2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3040316C2 (en) * 1980-10-25 1983-11-10 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Method and device for contactless measurement of direct and alternating currents, in particular of instantaneous current values
DE3681088D1 (en) * 1985-07-18 1991-10-02 Siemens Ag TESTING ARRANGEMENT FOR A SIGNAL-PROCESSING ELECTRICAL DEVICE.
CH674089A5 (en) * 1987-10-16 1990-04-30 Lem Liaisons Electron Mec
GB2237114A (en) * 1989-09-22 1991-04-24 Manchester Lasers Transient signal isolator
WO1993026089A1 (en) * 1992-06-10 1993-12-23 Digital Equipment Corporation Isolated error-amplifying control circuitry
DE102013104402B4 (en) * 2013-04-30 2019-11-07 Sma Solar Technology Ag Method and device for monitoring and measuring current on a magnetically biased choke

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1124576A (en) * 1966-01-06 1968-08-21 Reliance Electric & Eng Co Hall effect transducer systems
US3525041A (en) * 1966-08-08 1970-08-18 Tektronix Inc Magnetic field measuring method and device effective over a wide frequency range
CH593493A5 (en) * 1975-12-17 1977-12-15 Bbc Brown Boveri & Cie
DE2719073B1 (en) * 1977-04-29 1978-06-22 Grundig Emv Method for detecting the induction zero by means of a field plate

Also Published As

Publication number Publication date
DE2827601C2 (en) 1980-06-12
EP0006565A1 (en) 1980-01-09
DE2827601B1 (en) 1979-09-13
EP0006565B1 (en) 1981-01-07
DE2960125D1 (en) 1981-02-26

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Legal Events

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