GB1067677A - Improvements in and relating to magnetic transducers - Google Patents

Improvements in and relating to magnetic transducers

Info

Publication number
GB1067677A
GB1067677A GB4135862A GB4135862A GB1067677A GB 1067677 A GB1067677 A GB 1067677A GB 4135862 A GB4135862 A GB 4135862A GB 4135862 A GB4135862 A GB 4135862A GB 1067677 A GB1067677 A GB 1067677A
Authority
GB
United Kingdom
Prior art keywords
cores
transducer
windings
wound
round
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
GB4135862A
Inventor
Sydney Wallace Punnett
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.)
BP PLC
University of Southampton
Original Assignee
BP PLC
University of Southampton
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 BP PLC, University of Southampton filed Critical BP PLC
Priority to GB4135862A priority Critical patent/GB1067677A/en
Priority to CH1328863A priority patent/CH419335A/en
Priority to AT867463A priority patent/AT261058B/en
Publication of GB1067677A publication Critical patent/GB1067677A/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)
  • Measuring Magnetic Variables (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

1,067,677. D.C. current measurement. UNIVERSITY OF SOUTHAMPTON AND BRITISH PETROLEUM CO. Ltd. Oct. 9, 1963 [Nov. 1, 1962], No. 41358/62. Heading G1U. [Also in Division H3] A magnetic transducer used in apparatus for measuring D.C. current consists of two annular magnetic cores 11, 12 in close proximity, each carrying substantially identical input windings 13, 14 connected in series and wound so that alternating current supplied to them causes the cores to be magnetically saturated in opposed directions. The resultant flux in the transducer is substantially zero and no voltage is induced in an output winding 16 which is wound round both cores and their windings. A D. C. current carried by a conductor 22 passing through the transducer causes a proportionate output voltage to be induced in the output winding. A ring shaped shield of metal 26 extends round the cores and their windings to reduce the effects of extraneous fields. The transducer is fabricated in two parts so that it may be placed round a conductor such as a pipe. The cores may be made from a web form magnetic material wound on a wooden former.
GB4135862A 1962-11-01 1962-11-01 Improvements in and relating to magnetic transducers Expired GB1067677A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4135862A GB1067677A (en) 1962-11-01 1962-11-01 Improvements in and relating to magnetic transducers
CH1328863A CH419335A (en) 1962-11-01 1963-10-29 Magnetic transmission system, in particular for a device for measuring an electrical current flowing in a conductor without touching the conductor
AT867463A AT261058B (en) 1962-11-01 1963-10-30 Magnetic transducer for measuring a direct current flowing through a conductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4135862A GB1067677A (en) 1962-11-01 1962-11-01 Improvements in and relating to magnetic transducers

Publications (1)

Publication Number Publication Date
GB1067677A true GB1067677A (en) 1967-05-03

Family

ID=10419321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4135862A Expired GB1067677A (en) 1962-11-01 1962-11-01 Improvements in and relating to magnetic transducers

Country Status (3)

Country Link
AT (1) AT261058B (en)
CH (1) CH419335A (en)
GB (1) GB1067677A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3940932A1 (en) * 1989-12-12 1991-06-13 Ulrich Doerr Measurement transducer for simultaneous measurement of AC and DC - has two soft magnetic cores, modulation coils and detection coil and uses periodic modulation current

Also Published As

Publication number Publication date
AT261058B (en) 1968-04-10
CH419335A (en) 1966-08-31

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