IT962442B - Riduttore di corrente a effetto faraday - Google Patents

Riduttore di corrente a effetto faraday

Info

Publication number
IT962442B
IT962442B IT26628/72A IT2662872A IT962442B IT 962442 B IT962442 B IT 962442B IT 26628/72 A IT26628/72 A IT 26628/72A IT 2662872 A IT2662872 A IT 2662872A IT 962442 B IT962442 B IT 962442B
Authority
IT
Italy
Prior art keywords
faraday effect
current reducer
reducer
current
faraday
Prior art date
Application number
IT26628/72A
Other languages
English (en)
Original Assignee
Alsthom Savoisienne
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 Alsthom Savoisienne filed Critical Alsthom Savoisienne
Application granted granted Critical
Publication of IT962442B publication Critical patent/IT962442B/it

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
    • 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

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
IT26628/72A 1971-07-05 1972-07-05 Riduttore di corrente a effetto faraday IT962442B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7124571A FR2144987A5 (it) 1971-07-05 1971-07-05

Publications (1)

Publication Number Publication Date
IT962442B true IT962442B (it) 1973-12-20

Family

ID=9079851

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26628/72A IT962442B (it) 1971-07-05 1972-07-05 Riduttore di corrente a effetto faraday

Country Status (6)

Country Link
US (1) US3753101A (it)
BE (1) BE785418A (it)
CA (1) CA970434A (it)
DE (1) DE2232979A1 (it)
FR (1) FR2144987A5 (it)
IT (1) IT962442B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU572667A1 (ru) * 1975-02-12 1977-09-15 Институт Механики Московского Государственного Университета Им. М.В.Ломоносова Пьезооптический измерительный преобразователь
DE2758611A1 (de) * 1977-12-29 1979-07-05 Siemens Ag Anordnung zur magnetooptischen strommessung
US4394069A (en) * 1979-06-05 1983-07-19 Beckman Instruments, Inc. Liquid crystal tuned birefringent filter
DE3364239D1 (en) * 1982-03-08 1986-07-31 Hitachi Ltd Apparatus for optically measuring a current
US4683421A (en) * 1985-03-29 1987-07-28 Westinghouse Electric Corp. Drift compensation technique for a magneto-optic current sensor
US4698497A (en) * 1986-05-22 1987-10-06 Westinghouse Electric Corp. Direct current magneto-optic current transformer
US5124634A (en) * 1989-03-14 1992-06-23 Square D Company Ring optical current transducer
FR2646711A1 (fr) * 1989-05-02 1990-11-09 Labo Electronique Physique Dispositif capteur de pression a fibre optique
ATE234471T1 (de) * 1998-12-22 2003-03-15 Siemens Ag Verfahren und anordnung zur optischen erfassung eines elektrischen stroms über lichtsignale mit unterschiedlicher wellenlänge
DE10005372A1 (de) * 2000-02-07 2001-08-23 Bosch Gmbh Robert Verfahren und Vorrichtung zur linearen Strommessung über einen großen Meßbereich
US8525511B2 (en) * 2006-12-12 2013-09-03 Abb Technology Ag Time division multiplexed detector for a magneto-optical current transducer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH442520A (fr) * 1965-04-10 1967-08-31 Merlin Gerin Dispositif de mesure électro-optique de courant
GB1310233A (en) * 1969-04-11 1973-03-14 Bp Chem Int Ltd Radiation analysers
DE1939912C3 (de) * 1969-08-01 1979-09-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Meßeinrichtung für Ströme in Hochspannungsleitern
FR2110625A5 (it) * 1970-10-23 1972-06-02 Alsthom Savoisienne

Also Published As

Publication number Publication date
US3753101A (en) 1973-08-14
DE2232979A1 (de) 1973-01-18
BE785418A (fr) 1972-12-27
FR2144987A5 (it) 1973-02-16
CA970434A (en) 1975-07-01

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