JPS5667764A - Voltage/current measurement device by light beam - Google Patents

Voltage/current measurement device by light beam

Info

Publication number
JPS5667764A
JPS5667764A JP14489879A JP14489879A JPS5667764A JP S5667764 A JPS5667764 A JP S5667764A JP 14489879 A JP14489879 A JP 14489879A JP 14489879 A JP14489879 A JP 14489879A JP S5667764 A JPS5667764 A JP S5667764A
Authority
JP
Japan
Prior art keywords
optical fiber
voltage
type optical
crystal
polarized light
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
JP14489879A
Other languages
Japanese (ja)
Inventor
Yuji Hamazaki
Seiichi Takeuchi
Masaaki Kato
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 JP14489879A priority Critical patent/JPS5667764A/en
Publication of JPS5667764A publication Critical patent/JPS5667764A/en
Pending legal-status Critical Current

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  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

PURPOSE:To stabilize and surely measure the voltage and electric current by connecting with multimode type optical fiber a crystal having a light source quite similar to circular polarized light and an electrooptical effect or an element and a sensor having a faraday effect. CONSTITUTION:A light passge connecting an electrooptical crystal or a faraday element 4 through a light source quite similar to circular polarized light, a lens 10 and a polarizer 3 are formed using a multimode type optical fiber 12. At the same time, a photopassage is formed connecting the afore-mentioned crystal or the element 4 with a sensor 7 through the intermediary of an analyzer 5 and a lens 11, using a multimode type optical fiber 12. Under this constitution, it is possible to avoid a change in the polarized light characteristics due to the bending of optical fiber, etc. and measure voltage and electric current in a stable and sure manner.
JP14489879A 1979-11-08 1979-11-08 Voltage/current measurement device by light beam Pending JPS5667764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14489879A JPS5667764A (en) 1979-11-08 1979-11-08 Voltage/current measurement device by light beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14489879A JPS5667764A (en) 1979-11-08 1979-11-08 Voltage/current measurement device by light beam

Publications (1)

Publication Number Publication Date
JPS5667764A true JPS5667764A (en) 1981-06-08

Family

ID=15372884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14489879A Pending JPS5667764A (en) 1979-11-08 1979-11-08 Voltage/current measurement device by light beam

Country Status (1)

Country Link
JP (1) JPS5667764A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107271A (en) * 1982-12-10 1984-06-21 Mitsubishi Electric Corp Optical fiber applied sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52119367A (en) * 1976-03-31 1977-10-06 Ono Yutaka Method and apparatus for detecting voltage using phototransformer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52119367A (en) * 1976-03-31 1977-10-06 Ono Yutaka Method and apparatus for detecting voltage using phototransformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107271A (en) * 1982-12-10 1984-06-21 Mitsubishi Electric Corp Optical fiber applied sensor
JPH0156387B2 (en) * 1982-12-10 1989-11-29 Mitsubishi Electric Corp

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