CA939751A - Optical intensity transformer - Google Patents

Optical intensity transformer

Info

Publication number
CA939751A
CA939751A CA125,906A CA125906A CA939751A CA 939751 A CA939751 A CA 939751A CA 125906 A CA125906 A CA 125906A CA 939751 A CA939751 A CA 939751A
Authority
CA
Canada
Prior art keywords
optical intensity
intensity transformer
transformer
optical
intensity
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
CA125,906A
Other languages
English (en)
Other versions
CA125906S (en
Inventor
Gilbert Lesueur
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.)
Alstom Savoisienne SA
Original Assignee
Alstom Savoisienne SA
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 Alstom Savoisienne SA filed Critical Alstom Savoisienne SA
Application granted granted Critical
Publication of CA939751A publication Critical patent/CA939751A/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)
CA125,906A 1970-10-23 1971-10-22 Optical intensity transformer Expired CA939751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7038389A FR2110625A5 (ru) 1970-10-23 1970-10-23

Publications (1)

Publication Number Publication Date
CA939751A true CA939751A (en) 1974-01-08

Family

ID=9063217

Family Applications (1)

Application Number Title Priority Date Filing Date
CA125,906A Expired CA939751A (en) 1970-10-23 1971-10-22 Optical intensity transformer

Country Status (3)

Country Link
US (1) US3708747A (ru)
CA (1) CA939751A (ru)
FR (1) FR2110625A5 (ru)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2144987A5 (ru) * 1971-07-05 1973-02-16 Alsthom Savoisienne
DE2333242C2 (de) * 1973-06-29 1974-12-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Digitaler magnetooptischer Meßwandler für Hochspannung
US3978334A (en) * 1975-09-24 1976-08-31 The United States Of America As Represented By The Secretary Of The Navy Precision laser beam deflection detector
DE2758611A1 (de) * 1977-12-29 1979-07-05 Siemens Ag Anordnung zur magnetooptischen strommessung
JPS58129372A (ja) * 1982-01-29 1983-08-02 Sumitomo Electric Ind Ltd 磁界−光変換器
EP0088419B1 (en) * 1982-03-08 1986-06-25 Hitachi, Ltd. Apparatus for optically measuring a current
JPS5917170A (ja) * 1982-07-21 1984-01-28 Hitachi Ltd 光方式電界強度測定器
US4540937A (en) * 1983-06-07 1985-09-10 Westinghouse Electric Corp. Electronic circuitry with self-calibrating feedback for use with an optical current sensor
US4683421A (en) * 1985-03-29 1987-07-28 Westinghouse Electric Corp. Drift compensation technique for a magneto-optic current sensor
US4947107A (en) * 1988-06-28 1990-08-07 Sundstrand Corporation Magneto-optic current sensor
US5124634A (en) * 1989-03-14 1992-06-23 Square D Company Ring optical current transducer
US4973899A (en) * 1989-08-24 1990-11-27 Sundstrand Corporation Current sensor and method utilizing multiple layers of thin film magneto-optic material and signal processing to make the output independent of system losses
ATE234471T1 (de) * 1998-12-22 2003-03-15 Siemens Ag Verfahren und anordnung zur optischen erfassung eines elektrischen stroms über lichtsignale mit unterschiedlicher wellenlänge
CN103163360A (zh) * 2013-03-20 2013-06-19 哈尔滨工业大学 基于比较测量结构的光学电流传感器及测量电流的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413055A (en) * 1961-04-12 1968-11-26 Gen Electric Magneto-optic glass body and electric circuit element in read-out apparatus including the same
CH442520A (fr) * 1965-04-10 1967-08-31 Merlin Gerin Dispositif de mesure électro-optique de courant
CH433065A (de) * 1966-02-03 1967-03-31 Bbc Brown Boveri & Cie Verfahren und Einrichtung zur Fernmessung mit Hilfe modulierter Lichtbündel
FR1541816A (fr) * 1967-09-01 1968-10-11 Merlin Gerin Perfectionnements aux dispositifs de mesure électro-optique d'une grandeur électrique
DE1955403C3 (de) * 1969-10-30 1974-04-25 Siemens Ag, 1000 Berlin U. 8000 Muenchen Digitale Meßeinrichtung für Ströme in Hochspannungsleitern

Also Published As

Publication number Publication date
FR2110625A5 (ru) 1972-06-02
US3708747A (en) 1973-01-02

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