GB1121423A - Magneto-optical current-measuring apparatus and method - Google Patents

Magneto-optical current-measuring apparatus and method

Info

Publication number
GB1121423A
GB1121423A GB418267A GB418267A GB1121423A GB 1121423 A GB1121423 A GB 1121423A GB 418267 A GB418267 A GB 418267A GB 418267 A GB418267 A GB 418267A GB 1121423 A GB1121423 A GB 1121423A
Authority
GB
United Kingdom
Prior art keywords
magneto
measuring apparatus
optical current
irongarnet
mullard
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
GB418267A
Inventor
Ronald Ferguson Pearson
Roger William Cooper
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.)
Philips Components Ltd
Original Assignee
Mullard Ltd
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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB418267A priority Critical patent/GB1121423A/en
Priority to FR93064A priority patent/FR1511746A/en
Publication of GB1121423A publication Critical patent/GB1121423A/en
Expired legal-status Critical Current

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
    • G01R15/24—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
    • G01R15/245—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect
    • G01R15/246—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect based on the Faraday, i.e. linear magneto-optic, effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

1,121,423. Light modulators. MULLARD Ltd. 27 Jan., 1967, No. 4182/67. Heading H4F. [Also in Divisions G1 and H1] A Faraday effect device in the form of a disc of undoped or indium-doped yttrium-irongarnet is used in photo-electric current measurement apparatus.
GB418267A 1966-01-31 1967-01-02 Magneto-optical current-measuring apparatus and method Expired GB1121423A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB418267A GB1121423A (en) 1967-01-02 1967-01-02 Magneto-optical current-measuring apparatus and method
FR93064A FR1511746A (en) 1966-01-31 1967-01-30 New antibiotics and their manufacturing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB418267A GB1121423A (en) 1967-01-02 1967-01-02 Magneto-optical current-measuring apparatus and method

Publications (1)

Publication Number Publication Date
GB1121423A true GB1121423A (en) 1968-07-24

Family

ID=9772260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB418267A Expired GB1121423A (en) 1966-01-31 1967-01-02 Magneto-optical current-measuring apparatus and method

Country Status (1)

Country Link
GB (1) GB1121423A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681688A (en) * 1969-07-31 1972-08-01 Siemens Ag Measuring device for currents in high voltage conductors
US4147979A (en) * 1975-04-16 1979-04-03 Siemens Aktiengesellschaft Movable probe carrying optical waveguides with electro-optic or magneto-optic material for measuring electric or magnetic fields
US4158170A (en) * 1976-07-20 1979-06-12 International Standard Electric Corporation Line current detector
EP0081412A3 (en) * 1981-12-04 1983-07-20 Thomson-Csf Measuring head for a magnetometer, and magnetometer with such a head
GB2237634A (en) * 1989-10-17 1991-05-08 Pirelli Cavi Spa Polarimetric optical sensor device
GB2343509A (en) * 1986-05-23 2000-05-10 British Aerospace Laser detectors

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681688A (en) * 1969-07-31 1972-08-01 Siemens Ag Measuring device for currents in high voltage conductors
US4147979A (en) * 1975-04-16 1979-04-03 Siemens Aktiengesellschaft Movable probe carrying optical waveguides with electro-optic or magneto-optic material for measuring electric or magnetic fields
US4158170A (en) * 1976-07-20 1979-06-12 International Standard Electric Corporation Line current detector
EP0081412A3 (en) * 1981-12-04 1983-07-20 Thomson-Csf Measuring head for a magnetometer, and magnetometer with such a head
US4516073A (en) * 1981-12-04 1985-05-07 Thomson-Csf Magnetometer probe using a thin-film magnetic material as a magneto-optic sensor
GB2343509A (en) * 1986-05-23 2000-05-10 British Aerospace Laser detectors
GB2343509B (en) * 1986-05-23 2001-01-17 British Aerospace Laser detectors
GB2237634A (en) * 1989-10-17 1991-05-08 Pirelli Cavi Spa Polarimetric optical sensor device
GB2237634B (en) * 1989-10-17 1993-07-28 Pirelli Cavi Spa Device for remote measurement of a physical quantity

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