HK1167462A1 - Electric current measuring instrument - Google Patents

Electric current measuring instrument

Info

Publication number
HK1167462A1
HK1167462A1 HK12107977.8A HK12107977A HK1167462A1 HK 1167462 A1 HK1167462 A1 HK 1167462A1 HK 12107977 A HK12107977 A HK 12107977A HK 1167462 A1 HK1167462 A1 HK 1167462A1
Authority
HK
Hong Kong
Prior art keywords
electric current
measuring instrument
current measuring
instrument
electric
Prior art date
Application number
HK12107977.8A
Other languages
English (en)
Chinese (zh)
Inventor
今野良博
佐佐木胜
Original Assignee
工業株式會社
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 工業株式會社 filed Critical 工業株式會社
Publication of HK1167462A1 publication Critical patent/HK1167462A1/xx

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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/32—Compensating for temperature change
HK12107977.8A 2009-05-21 2012-08-15 Electric current measuring instrument HK1167462A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009139634A JP5756966B2 (ja) 2009-05-21 2009-05-21 電流測定装置
PCT/JP2010/003348 WO2010134327A1 (ja) 2009-05-21 2010-05-18 電流測定装置

Publications (1)

Publication Number Publication Date
HK1167462A1 true HK1167462A1 (en) 2012-11-30

Family

ID=43126020

Family Applications (1)

Application Number Title Priority Date Filing Date
HK12107977.8A HK1167462A1 (en) 2009-05-21 2012-08-15 Electric current measuring instrument

Country Status (8)

Country Link
US (1) US8957667B2 (ja)
EP (1) EP2434301B1 (ja)
JP (1) JP5756966B2 (ja)
CN (1) CN102422168B (ja)
CA (1) CA2762350C (ja)
HK (1) HK1167462A1 (ja)
RU (1) RU2536334C2 (ja)
WO (1) WO2010134327A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2650615C2 (ru) * 2013-03-07 2018-04-16 Адамант Ко., Лтд. Устройство для измерения электрического тока
US9746500B2 (en) * 2013-12-11 2017-08-29 Eaton Corporation Electrical current sensing apparatus
WO2015091972A1 (en) 2013-12-20 2015-06-25 Abb Technology Ag Fiber-optic sensor and method
CN104820295B (zh) * 2014-01-30 2020-04-28 奥普林克通信公司 无热法拉第旋转器反射镜
CN104880763A (zh) * 2014-02-28 2015-09-02 苏州福瑞互感器有限公司 测量大电流传感器的氧化铅掺杂石英光纤的制备方法
EP3104183A1 (en) * 2015-06-10 2016-12-14 Lumiker Aplicaciones Tecnologicas S.L. Current measuring equipment based on optical fiber for measuring the current circulating through a conductor and the associated method
CN107091950B (zh) * 2016-02-16 2021-01-19 姚晓天 基于光学传感原理集成了温度传感的反射式电流和磁场传感器
JP6726033B2 (ja) * 2016-06-01 2020-07-22 九電テクノシステムズ株式会社 電流検出装置

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129372A (ja) * 1982-01-29 1983-08-02 Sumitomo Electric Ind Ltd 磁界−光変換器
JPS59107273A (ja) 1982-12-10 1984-06-21 Mitsubishi Electric Corp 光電流・磁界センサ
JPS62865A (ja) * 1985-06-26 1987-01-06 Hitachi Ltd 光方式電流変成器
JPS6270776A (ja) * 1985-09-25 1987-04-01 Sumitomo Electric Ind Ltd 磁界センサ
JPH01121817A (ja) * 1987-11-06 1989-05-15 Hitachi Ltd 光アイソレータ
JPH0231171A (ja) * 1988-07-20 1990-02-01 Ngk Insulators Ltd 光電流・磁界センサ
ES2052135T3 (es) * 1989-12-01 1994-07-01 Asea Brown Boveri Transformador de corriente de fibra optica.
US5640516A (en) * 1991-04-02 1997-06-17 Tdk Corporation Faraday rotator
JPH062865A (ja) * 1992-06-19 1994-01-11 World Kogyo Kk 電気レンジの施錠装置
US6055081A (en) * 1995-03-15 2000-04-25 Sumitomo Electric Industries, Ltd. Chromatic dispersion compensator and chromatic dispersion compensating optical communication system
JP3488576B2 (ja) * 1996-08-30 2004-01-19 株式会社東芝 光変流器
RU2120128C1 (ru) * 1997-06-26 1998-10-10 Научно-исследовательский институт импульсной техники Устройство для измерения сверхбольших токов
US6188811B1 (en) * 1998-10-31 2001-02-13 The Texas A&M Universtiy System Fiber optic current sensor
JP2001051246A (ja) * 1999-05-28 2001-02-23 Shin Etsu Chem Co Ltd ファラデー回転子とそれを使用した磁気光学素子
EP1055957A3 (en) 1999-05-28 2004-03-10 Shin-Etsu Chemical Company, Ltd. Faraday rotator and magneto-optical element using the same
DE10000306B4 (de) * 2000-01-05 2012-05-24 Abb Research Ltd. Faseroptischer Stromsensor
US7176671B2 (en) * 2002-03-01 2007-02-13 The Tokoyo Electric Power Company, Inc Current measuring device
JP4092142B2 (ja) * 2002-06-14 2008-05-28 株式会社東芝 光電圧測定装置、電力又は電力量測定装置及び電気機器の保護システム
EP1804066A4 (en) * 2004-08-25 2008-12-31 Tokyo Electric Power Co METHOD OF REDUCING THE DEPENDENT ERROR OF TEMPERATURE IN A PHOTOCOURANT DETECTOR, AND A PHOTOCOURANT DETECTION DEVICE
TWI278638B (en) * 2005-09-20 2007-04-11 Hermann Lin Fiber-optics multiplexed interferometric current sensor
CA2656420A1 (en) * 2006-06-29 2008-01-03 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic sensor using a bragg fiber
KR20080112770A (ko) * 2007-06-22 2008-12-26 창원대학교 산학협력단 전력기기용 고안정성 광섬유전류센서의 광 신호처리기
CA2703344A1 (en) * 2007-10-23 2009-04-30 The Tokyo Electric Power Company, Incorporated Optical fiber electric current sensor and electric current measurment method
JP5904694B2 (ja) * 2009-12-10 2016-04-20 株式会社東芝 サニャック干渉型光電流センサ

Also Published As

Publication number Publication date
CA2762350A1 (en) 2010-11-25
RU2536334C2 (ru) 2014-12-20
CN102422168B (zh) 2014-11-12
JP2010271292A (ja) 2010-12-02
CN102422168A (zh) 2012-04-18
WO2010134327A1 (ja) 2010-11-25
EP2434301A1 (en) 2012-03-28
EP2434301A4 (en) 2017-08-30
EP2434301B1 (en) 2023-06-28
RU2011152197A (ru) 2013-06-27
JP5756966B2 (ja) 2015-07-29
US8957667B2 (en) 2015-02-17
CA2762350C (en) 2017-07-04
US20120091991A1 (en) 2012-04-19

Similar Documents

Publication Publication Date Title
GB2465638B (en) Current measuring device
GB2468018B (en) Electric machine - cooling
GB2468017B (en) Electric machine - modular
GB0902390D0 (en) Electric machine - flux
EP2581058A4 (en) CATHETER FOR MEASURING THE ELECTRICAL POTENTIAL
EP2633517A4 (en) ELECTRIC GUITAR WIRELESS
HK1167462A1 (en) Electric current measuring instrument
ZA201001314B (en) Electric switchgear
EP2546661A4 (en) Current measurement device
EP2491360A4 (en) FOURCAULT CURRENT THERMOMETER
GB201001627D0 (en) Measuring instrument
EP2378298A4 (en) DEVICE FOR MEASURING THE ELECTRIC FIELD
EP2455723A4 (en) INSTRUMENT INDICATOR
GB0805585D0 (en) Current measurement apparatus
GB0914913D0 (en) Combined current sensor
EP2486413B8 (en) Electromagnetic measuring device for measuring electric current
GB201007892D0 (en) Voltage measurement
EP2365347A4 (en) ELECTRIC FIELD SENSOR
GB0911574D0 (en) Current passage indicator
HK1181853A1 (zh) 電流測量裝置
ZA201101839B (en) Electrical current measuring coil
GB201005085D0 (en) Electrical switchgear
GB0922381D0 (en) Current measuring apparatus
TWM374060U (en) Measurement probe
GB0921107D0 (en) Current measuring apparatus

Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20180518