WO2001063302A3 - Faraday-effect current sensor with improved vibration response - Google Patents

Faraday-effect current sensor with improved vibration response Download PDF

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Publication number
WO2001063302A3
WO2001063302A3 PCT/US2001/006404 US0106404W WO0163302A3 WO 2001063302 A3 WO2001063302 A3 WO 2001063302A3 US 0106404 W US0106404 W US 0106404W WO 0163302 A3 WO0163302 A3 WO 0163302A3
Authority
WO
WIPO (PCT)
Prior art keywords
coil
coil section
faraday
sensor
section
Prior art date
Application number
PCT/US2001/006404
Other languages
French (fr)
Other versions
WO2001063302A2 (en
Inventor
Richard B Dyott
Original Assignee
Kvh Ind Inc
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 Kvh Ind Inc filed Critical Kvh Ind Inc
Priority to AT01928293T priority Critical patent/ATE265049T1/en
Priority to AU2001255167A priority patent/AU2001255167A1/en
Priority to EP01928293A priority patent/EP1261880B1/en
Priority to DE60102906T priority patent/DE60102906D1/en
Publication of WO2001063302A2 publication Critical patent/WO2001063302A2/en
Publication of WO2001063302A3 publication Critical patent/WO2001063302A3/en

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

Abstract

The invention is directed to a Faraday-type current sensor which is less susceptive to effects caused by rotation, acceleration and vibration of the sensor coil. The sensor coil of the invention includes a first coil section which forms the current sensing coil and a second coil section which is optically connected to the first coil section and forms a compensation or 'bucking' coil. The optical fiber of the first coil section preferably has an almost zero birefringence and is connected in series with the optical fiber of the second coil section which preferably has a large birefringence. The illuminating radiation propagates through the sensor coil in such a way, as viewed along the coil axis, that the propagation direction of the radiation in the first coil section with respect to the coil axis is opposite from the propagation direction in the second coil section.
PCT/US2001/006404 2000-02-28 2001-02-28 Faraday-effect current sensor with improved vibration response WO2001063302A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT01928293T ATE265049T1 (en) 2000-02-28 2001-02-28 FARADAY EFFECT CURRENT PROBE WITH IMPROVED VIBRATION RESPONSE
AU2001255167A AU2001255167A1 (en) 2000-02-28 2001-02-28 Faraday-effect current sensor with improved vibration response
EP01928293A EP1261880B1 (en) 2000-02-28 2001-02-28 Faraday-effect current sensor with improved vibration response
DE60102906T DE60102906D1 (en) 2000-02-28 2001-02-28 FARADAY EFFECT CURRENT PROBE WITH IMPROVED VIBRATION REACTION

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18567500P 2000-02-28 2000-02-28
US60/185,675 2000-02-28

Publications (2)

Publication Number Publication Date
WO2001063302A2 WO2001063302A2 (en) 2001-08-30
WO2001063302A3 true WO2001063302A3 (en) 2002-02-28

Family

ID=22681982

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/006404 WO2001063302A2 (en) 2000-02-28 2001-02-28 Faraday-effect current sensor with improved vibration response

Country Status (6)

Country Link
US (1) US6703821B2 (en)
EP (1) EP1261880B1 (en)
AT (1) ATE265049T1 (en)
AU (1) AU2001255167A1 (en)
DE (1) DE60102906D1 (en)
WO (1) WO2001063302A2 (en)

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US6891622B2 (en) 1999-02-11 2005-05-10 Kvh Industries, Inc. Current sensor
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US20100309473A1 (en) * 2007-12-21 2010-12-09 Honeywell International Inc. Fiber optic current sensor and method for sensing current using the same
WO2009103126A1 (en) * 2008-02-22 2009-08-27 Smart Digital Optics Pty Limited Sensing coil and sensing unit for sagnac optical fibre current sensor
EP2308069B1 (en) * 2008-07-30 2015-04-15 ABB Research Ltd. Generator circuit breaker with fiber-optic current sensor
RU2481682C2 (en) 2008-07-30 2013-05-10 Абб Рисерч Лтд Substation of ac to dc transformation or dc to high-voltage ac transformation with fibre-optic current sensor
US20110052115A1 (en) * 2009-08-27 2011-03-03 General Electric Company System and method for temperature control and compensation for fiber optic current sensing systems
CN103207301A (en) * 2012-01-16 2013-07-17 中国科学院西安光学精密机械研究所 Coil of optical-fiber current sensor and optical-fiber current sensor based on coil
CN102608380B (en) * 2012-02-29 2013-12-11 曲阜师范大学 Self-induced photoelectric mixed current transformer
CN103453899A (en) * 2012-06-03 2013-12-18 李卫 Passive phase modulator for optical fiber gyroscope
EP3183585A1 (en) 2014-08-19 2017-06-28 ABB Schweiz AG Optical sensor with spun birefringent sensing fiber
CN106154010B (en) * 2015-03-30 2019-01-01 北京自动化控制设备研究所 A kind of exoskeletal fiber-optic current sensor ring and preparation method thereof
CN111220881A (en) * 2019-11-18 2020-06-02 南京航空航天大学 Optical fiber detection device for detecting discharge fault of high-voltage bushing
US11371843B2 (en) * 2020-07-02 2022-06-28 Anello Photonics, Inc. Integration of photonics optical gyroscopes with micro-electro-mechanical sensors
CN114577245B (en) * 2022-03-22 2022-11-11 华中科技大学 Optical fiber sensing system capable of simultaneously measuring current and vibration

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Also Published As

Publication number Publication date
EP1261880B1 (en) 2004-04-21
AU2001255167A1 (en) 2001-09-03
WO2001063302A2 (en) 2001-08-30
ATE265049T1 (en) 2004-05-15
EP1261880A2 (en) 2002-12-04
US6703821B2 (en) 2004-03-09
DE60102906D1 (en) 2004-05-27
US20020180416A1 (en) 2002-12-05

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