JPS56157872A - Light-applying voltage and electric field sensor - Google Patents

Light-applying voltage and electric field sensor

Info

Publication number
JPS56157872A
JPS56157872A JP6189080A JP6189080A JPS56157872A JP S56157872 A JPS56157872 A JP S56157872A JP 6189080 A JP6189080 A JP 6189080A JP 6189080 A JP6189080 A JP 6189080A JP S56157872 A JPS56157872 A JP S56157872A
Authority
JP
Japan
Prior art keywords
light
electric field
board
optical fiber
phase difference
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
JP6189080A
Other languages
Japanese (ja)
Other versions
JPH024864B2 (en
Inventor
Seiichi Takeuchi
Masaaki Kato
Yuji Hamazaki
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 JP6189080A priority Critical patent/JPS56157872A/en
Publication of JPS56157872A publication Critical patent/JPS56157872A/en
Publication of JPH024864B2 publication Critical patent/JPH024864B2/ja
Granted 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

Abstract

PURPOSE:To enable the detection of voltage and electric field by using only one piece of optical fiber with a reflector board provided to reciprocate light between a single crystal board and a 1/8 wavelength board. CONSTITUTION:The light from a light source incides into a single crystal board 20 via an optical fiber 24, a lens 25 and an orthogonal polarizer 22, and after a phase difference proportional to the intensity of the electric field to be measured and a phase difference of pi/4 are given, the latter by a 1/8 wavelength board 21, reflected by a reflector board 23. The light reverses its direction and passes through a light passage with a phase difference pi/4 given again by the board 21 and an equal phase difference to that previously given. The polarizer 22 works as a light detector for the reversed light, and the light having an intensity corresponding to that of the electric field to be measured is led to a photoelectric converter for example via the lens 25 and optical fiber 24. Thereby, the remote measuring of the intensity of electric field for example becomes possible using only one piece of optical fiber.
JP6189080A 1980-05-10 1980-05-10 Light-applying voltage and electric field sensor Granted JPS56157872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6189080A JPS56157872A (en) 1980-05-10 1980-05-10 Light-applying voltage and electric field sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6189080A JPS56157872A (en) 1980-05-10 1980-05-10 Light-applying voltage and electric field sensor

Publications (2)

Publication Number Publication Date
JPS56157872A true JPS56157872A (en) 1981-12-05
JPH024864B2 JPH024864B2 (en) 1990-01-30

Family

ID=13184186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6189080A Granted JPS56157872A (en) 1980-05-10 1980-05-10 Light-applying voltage and electric field sensor

Country Status (1)

Country Link
JP (1) JPS56157872A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109857A (en) * 1981-12-24 1983-06-30 Toshihiko Yoshino Neasuring device of electricity
JPS60263866A (en) * 1984-06-12 1985-12-27 Hitachi Cable Ltd Optical electric field sensor
EP0293788A1 (en) * 1987-05-30 1988-12-07 Hamamatsu Photonics K.K. Voltage detector
EP0293922A2 (en) * 1987-06-05 1988-12-07 Hamamatsu Photonics K.K. Voltage detector
EP0299432A2 (en) * 1987-07-13 1989-01-18 Hamamatsu Photonics K.K. A voltage detecting device
WO2007000947A1 (en) * 2005-06-29 2007-01-04 Nec Corporation Electric field sensor, magnetic field sensor, electro-magnetic sensor, and electro-magnetic field measuring system using them
JP2007315894A (en) * 2006-05-25 2007-12-06 Ntt Docomo Inc Electric field measuring apparatus
JP2015001458A (en) * 2013-06-17 2015-01-05 株式会社日立製作所 Probe for near electric field measurement and near electric field measurement system using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017407U (en) * 1973-06-19 1975-02-25
JPS50141343A (en) * 1974-02-18 1975-11-13
JPS5230474A (en) * 1975-09-03 1977-03-08 Fujitsu Ltd Apparatus for measuring power line current
JPS54128770A (en) * 1978-03-29 1979-10-05 Mitsubishi Electric Corp Voltmeter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017407U (en) * 1973-06-19 1975-02-25
JPS50141343A (en) * 1974-02-18 1975-11-13
JPS5230474A (en) * 1975-09-03 1977-03-08 Fujitsu Ltd Apparatus for measuring power line current
JPS54128770A (en) * 1978-03-29 1979-10-05 Mitsubishi Electric Corp Voltmeter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109857A (en) * 1981-12-24 1983-06-30 Toshihiko Yoshino Neasuring device of electricity
JPH0314141B2 (en) * 1981-12-24 1991-02-26 Toshihiko Yoshino
JPS60263866A (en) * 1984-06-12 1985-12-27 Hitachi Cable Ltd Optical electric field sensor
EP0293788A1 (en) * 1987-05-30 1988-12-07 Hamamatsu Photonics K.K. Voltage detector
EP0293922A2 (en) * 1987-06-05 1988-12-07 Hamamatsu Photonics K.K. Voltage detector
EP0299432A2 (en) * 1987-07-13 1989-01-18 Hamamatsu Photonics K.K. A voltage detecting device
WO2007000947A1 (en) * 2005-06-29 2007-01-04 Nec Corporation Electric field sensor, magnetic field sensor, electro-magnetic sensor, and electro-magnetic field measuring system using them
US8233753B2 (en) 2005-06-29 2012-07-31 Nec Corporation Electric field sensor, magnetic field sensor, electromagnetic field sensor and electromagnetic field measuring system using these sensors
JP2007315894A (en) * 2006-05-25 2007-12-06 Ntt Docomo Inc Electric field measuring apparatus
JP2015001458A (en) * 2013-06-17 2015-01-05 株式会社日立製作所 Probe for near electric field measurement and near electric field measurement system using the same

Also Published As

Publication number Publication date
JPH024864B2 (en) 1990-01-30

Similar Documents

Publication Publication Date Title
DE3588064T2 (en) Spectral modulation sensor with an optical resonance structure and optical measuring devices using it.
CA2086046A1 (en) Apparatus for measuring the effective refractive index in optical fibres
JPS57196165A (en) Light intensity modulation measuring device
JPS56157872A (en) Light-applying voltage and electric field sensor
DE3584492D1 (en) FIBER OPTICAL SENSOR WITH A FLUORESCENT SUBSTANCE.
JPS5629174A (en) Electric current measuring device
JPS5554428A (en) Output device for detecting light which passes through optical fibers
JPS5690227A (en) Optical fiber temperature detector
DE3583821D1 (en) DEVICE FOR MEASURING THE LINE INTEGRAL OF A VARIABLE VARIABLE MEASURING SIZE.
JPS55163425A (en) Photometry of multi-core connection for optical fiber
JPS649304A (en) Height measuring apparatus
JPS57161661A (en) Measuring device by use of optical fiber
JPS56112636A (en) Optical humidity sensor
JPS54139778A (en) Photosensor
JPS5462879A (en) Optical temperature detector
JPS5435757A (en) Measuring method of refractive index distribution of optical fibers
JPS5611328A (en) Temperature measuring unit
JPS57160071A (en) Electric field detector
SU894356A1 (en) Device for checking optical part thickness
JPS57101744A (en) Optical concentration meter
SU461338A1 (en) Magneto-optical analyzer
SU694772A1 (en) Pulse photometer
JPS5667738A (en) Optical humidity detector
SU696285A1 (en) Automatic collimator
JPS5289949A (en) Optical fiber apparatus