JPS56100364A - Voltage/electric field measuring device by light - Google Patents

Voltage/electric field measuring device by light

Info

Publication number
JPS56100364A
JPS56100364A JP227480A JP227480A JPS56100364A JP S56100364 A JPS56100364 A JP S56100364A JP 227480 A JP227480 A JP 227480A JP 227480 A JP227480 A JP 227480A JP S56100364 A JPS56100364 A JP S56100364A
Authority
JP
Japan
Prior art keywords
bi12sio20
electro
light
optic crystal
voltage
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.)
Pending
Application number
JP227480A
Other languages
Japanese (ja)
Inventor
Koji Tada
Hirokuni Nanba
Miki Kuhara
Masami Tatsumi
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP227480A priority Critical patent/JPS56100364A/en
Priority to NLAANVRAGE8005615,A priority patent/NL181528C/en
Priority to US06/197,432 priority patent/US4465969A/en
Priority to DE3039136A priority patent/DE3039136C2/en
Priority to GB8033578A priority patent/GB2068137B/en
Priority to CA000367933A priority patent/CA1199068A/en
Priority to FR8100296A priority patent/FR2473729B1/en
Publication of JPS56100364A publication Critical patent/JPS56100364A/en
Pending 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
    • G01R15/241—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using electro-optical modulators, e.g. electro-absorption
    • G01R15/242—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using electro-optical modulators, e.g. electro-absorption based on the Pockels effect, i.e. linear electro-optic effect

Landscapes

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

Abstract

PURPOSE:To keep the temperature stability of an electro-optic crystal and to make ease of the manufacture, by avoiding natural double refraction of the electro-optic crystal through the use of bismuth silicon oxide Bi12SiO20 or the like. CONSTITUTION:Along the direction of progress of light, polarizer 2, electro-optic crystal 7, lambda/4 wave length plate 4, and polarizer 5 are arranged, and an electro- optic crystal 7 is made of Bi12SiO20. Bi12SiO20 is a crystal belonging to cubic system without natural double refraction. Thus, no temperature compensation is required. Further, the characteristics between output voltage/average photodetection power in Bi12SiO20 and temperature are flat and have a variance within several percentages. Thus, the light from Bi12SiO20 is different from the phase toward X and Y, and the output light after the lambda/4 wave length plate 4 and the photodetector 5 is subject to modulation proportional to the applied voltage. With the constitution like this, the electro-optic crystal has temperature stability and the manufacture is made easy.
JP227480A 1980-01-12 1980-01-12 Voltage/electric field measuring device by light Pending JPS56100364A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP227480A JPS56100364A (en) 1980-01-12 1980-01-12 Voltage/electric field measuring device by light
NLAANVRAGE8005615,A NL181528C (en) 1980-01-12 1980-10-10 DEVICE FOR MEASURING A VOLTAGE OR ELECTRICAL FIELD USING LIGHT.
US06/197,432 US4465969A (en) 1980-01-12 1980-10-16 Voltage and electric field measuring device using light
DE3039136A DE3039136C2 (en) 1980-01-12 1980-10-16 DEVICE FOR MEASURING A VOLTAGE AND ELECTRICAL FIELD USING LIGHT
GB8033578A GB2068137B (en) 1980-01-12 1980-10-17 Voltage and electric field measuring device
CA000367933A CA1199068A (en) 1980-01-12 1981-01-06 Voltage and electric field measuring device using light
FR8100296A FR2473729B1 (en) 1980-01-12 1981-01-09 ELECTRIC FIELD AND VOLTAGE MEASURING DEVICE USING LIGHT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP227480A JPS56100364A (en) 1980-01-12 1980-01-12 Voltage/electric field measuring device by light

Publications (1)

Publication Number Publication Date
JPS56100364A true JPS56100364A (en) 1981-08-12

Family

ID=11524779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP227480A Pending JPS56100364A (en) 1980-01-12 1980-01-12 Voltage/electric field measuring device by light

Country Status (1)

Country Link
JP (1) JPS56100364A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122557U (en) * 1983-02-07 1984-08-17 横河電機株式会社 light voltmeter
JPS59122558U (en) * 1983-02-08 1984-08-17 横河電機株式会社 light voltmeter
JPS59124366U (en) * 1983-02-10 1984-08-21 横河電機株式会社 light voltmeter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944911A (en) * 1972-09-06 1974-04-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944911A (en) * 1972-09-06 1974-04-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122557U (en) * 1983-02-07 1984-08-17 横河電機株式会社 light voltmeter
JPS59122558U (en) * 1983-02-08 1984-08-17 横河電機株式会社 light voltmeter
JPS59124366U (en) * 1983-02-10 1984-08-21 横河電機株式会社 light voltmeter

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