JPS5784365A - Light-employing voltage measuring apparatus - Google Patents

Light-employing voltage measuring apparatus

Info

Publication number
JPS5784365A
JPS5784365A JP55161262A JP16126280A JPS5784365A JP S5784365 A JPS5784365 A JP S5784365A JP 55161262 A JP55161262 A JP 55161262A JP 16126280 A JP16126280 A JP 16126280A JP S5784365 A JPS5784365 A JP S5784365A
Authority
JP
Japan
Prior art keywords
light
electrooptical
photofiber
electrooptically
covered
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.)
Granted
Application number
JP55161262A
Other languages
Japanese (ja)
Other versions
JPH036465B2 (en
Inventor
Miki Kuhara
Koji Tada
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 JP55161262A priority Critical patent/JPS5784365A/en
Publication of JPS5784365A publication Critical patent/JPS5784365A/en
Publication of JPH036465B2 publication Critical patent/JPH036465B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/24Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
    • G01R15/241Adaptations 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

Landscapes

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

Abstract

PURPOSE:To make it possible to conduct stable measurement of voltages ranging widely from low voltage to high voltage, by forming an electrooptically crystallized body by laminating electrooptically crystallized sheets which are provided with transparent electrodes and covered by insulating resin. CONSTITUTION:Transparent electrodes 7 and 7' are formed on the both sides of an electrooptical crystal 3 which is thin and optically polished, and after leads 8 and 8' are attached by conductive paste, the entire body is covered by transparent resin 9. This electrooptical element 10 is tightly laminated, a voltage to be measured is impressed from an object to be measured 6. On the other hand, light from a light source 14 is applied to a polarizer 2 through a photofiber 12 and a rod lens 13' and phase-modulated to oval deflection by the electrooptical element 10. Light put out from the element 10 is applied to a photodiode 11 through a lambda/4 wavelength plate 4, a light detector 5, the rod lens 13' and a photofiber 12, and then, it is converted to an electric signal. It is possible, by so doing, to minimize loss of light without expanding total length and execute measurement by a high input impedance.
JP55161262A 1980-11-14 1980-11-14 Light-employing voltage measuring apparatus Granted JPS5784365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55161262A JPS5784365A (en) 1980-11-14 1980-11-14 Light-employing voltage measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55161262A JPS5784365A (en) 1980-11-14 1980-11-14 Light-employing voltage measuring apparatus

Publications (2)

Publication Number Publication Date
JPS5784365A true JPS5784365A (en) 1982-05-26
JPH036465B2 JPH036465B2 (en) 1991-01-30

Family

ID=15731748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55161262A Granted JPS5784365A (en) 1980-11-14 1980-11-14 Light-employing voltage measuring apparatus

Country Status (1)

Country Link
JP (1) JPS5784365A (en)

Also Published As

Publication number Publication date
JPH036465B2 (en) 1991-01-30

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