WO1993015410A1 - Electric current measurement - Google Patents
Electric current measurement Download PDFInfo
- Publication number
- WO1993015410A1 WO1993015410A1 PCT/GB1993/000134 GB9300134W WO9315410A1 WO 1993015410 A1 WO1993015410 A1 WO 1993015410A1 GB 9300134 W GB9300134 W GB 9300134W WO 9315410 A1 WO9315410 A1 WO 9315410A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuitry
- conductor
- electrical current
- detector circuitry
- sensor
- Prior art date
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
Definitions
- Fig. 4 illustrates a dual channel sensing device in accordance with the present invention for compensating against temperature effects
- Fig. 5 illustrates a dual wavelength sensing device in accordance with the present invention for compensating against vibration effects
- Fig. 7 illustrates a dual channel dual wavelength sensing device in accordance with the present invention providing compensation against the combined effects of temperature, vibration and cross-talk.
- a further source of measurement errors which requires compensation is due to vibration effects on the optical cables 14, 16 leading to and from the housing 27. These vibration effects introduce optical losses in the system and are manifested by noise in the output signal from the detector circuitry 20. To compensate for these effects a dual wavelength scheme has been developed, shown in Fig. 5.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measuring Magnetic Variables (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/256,713 US5486754A (en) | 1992-01-29 | 1993-01-22 | Electric current measurement |
AU33619/93A AU671269B2 (en) | 1992-01-29 | 1993-01-22 | Electric current measurement |
DE69328825T DE69328825T2 (en) | 1992-01-29 | 1993-01-22 | Electrical current measurement |
EP93902433A EP0624252B1 (en) | 1992-01-29 | 1993-01-22 | Electric current measurement |
JP5513019A JPH07503318A (en) | 1992-01-29 | 1993-01-22 | current measurement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9201896.9 | 1992-01-29 | ||
GB929201896A GB9201896D0 (en) | 1992-01-29 | 1992-01-29 | Electric current measurement |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993015410A1 true WO1993015410A1 (en) | 1993-08-05 |
Family
ID=10709469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1993/000134 WO1993015410A1 (en) | 1992-01-29 | 1993-01-22 | Electric current measurement |
Country Status (8)
Country | Link |
---|---|
US (1) | US5486754A (en) |
EP (1) | EP0624252B1 (en) |
JP (1) | JPH07503318A (en) |
AU (1) | AU671269B2 (en) |
CA (1) | CA2128735A1 (en) |
DE (1) | DE69328825T2 (en) |
GB (1) | GB9201896D0 (en) |
WO (1) | WO1993015410A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997013155A1 (en) * | 1995-10-04 | 1997-04-10 | Minnesota Mining And Manufacturing Company | Verdet constant temperature-compensated current sensor |
US5621319A (en) * | 1995-12-08 | 1997-04-15 | Allegro Microsystems, Inc. | Chopped hall sensor with synchronously chopped sample-and-hold circuit |
EP0810442A1 (en) * | 1996-05-30 | 1997-12-03 | Abb Research Ltd. | Magneto optical current sensor |
WO1998047032A2 (en) * | 1997-04-11 | 1998-10-22 | Digital Optics Corporation | Optical transmission systems including optical rods with three-dimensional patterns thereon and related structures |
WO1999008120A1 (en) * | 1997-08-12 | 1999-02-18 | Siemens Aktiengesellschaft | Method for measuring a magnetic field and device for carrying out said method |
US5996376A (en) * | 1997-04-11 | 1999-12-07 | Digital Optics Corporation | Methods of forming optical rods including three-dimensional patterns on end faces thereof |
CN102156212A (en) * | 2011-01-04 | 2011-08-17 | 武汉理工大学 | Method and device for measuring heavy current of magnetic coupled fiber grating |
EP2439562A1 (en) * | 2010-10-08 | 2012-04-11 | PHOENIX CONTACT GmbH & Co. KG | Lightning detection system |
CN109917169A (en) * | 2019-03-15 | 2019-06-21 | 上海大学 | A kind of light vortex fibre optic current sensor based on single seam detection |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4312183A1 (en) * | 1993-04-14 | 1994-10-20 | Siemens Ag | Optical measuring method for measuring an electrical alternating current with temperature compensation and device for carrying out the method |
US5892357A (en) * | 1995-12-08 | 1999-04-06 | Lockheed Martin Idaho Technologies Company | Electro-optic voltage sensor for sensing voltage in an E-field |
AU1215400A (en) | 1998-10-21 | 2000-05-08 | Paul G. Duncan | Methods and apparatus for optically measuring polarization rotation of optical wave fronts using rare earth iron garnets |
US6388434B1 (en) | 2000-01-17 | 2002-05-14 | Bechtel Bwxt Idaho, Llc | Electro-optic high voltage sensor |
FR2811085B1 (en) * | 2000-06-30 | 2002-08-23 | Schneider Electric Ind Sa | DEVICE FOR MEASURING AN ELECTRIC CURRENT BY FARADAY EFFECT |
US7068025B2 (en) * | 2003-05-12 | 2006-06-27 | Nesa A/S | Compensation of simple fibre optic Faraday effect sensors |
EP1491903A1 (en) * | 2003-05-12 | 2004-12-29 | Kasmatic Innovation A/S | Fiberoptic Faraday effect sensor |
US7249338B2 (en) | 2003-05-21 | 2007-07-24 | Gateway Inc. | High speed bus with radio frequency microstrip |
US20080309329A1 (en) * | 2003-07-30 | 2008-12-18 | Koninklike Philips Electronics N.V. | On-Chip Magnetic Sensor Device with Suppressed Cross-Talk |
JP4869245B2 (en) * | 2004-11-18 | 2012-02-08 | パワーセンス・アクティーゼルスカブ | Compensation for a simple fiber optic Faraday effect sensor |
WO2008065196A2 (en) * | 2006-11-30 | 2008-06-05 | North Sensor A/S | Faraday effect current sensor |
US9134344B2 (en) | 2009-10-28 | 2015-09-15 | Gridview Optical Solutions, Llc. | Optical sensor assembly for installation on a current carrying cable |
US8395372B2 (en) * | 2009-10-28 | 2013-03-12 | Optisense Network, Llc | Method for measuring current in an electric power distribution system |
US20130038324A1 (en) * | 2011-08-12 | 2013-02-14 | Dong Ho Wu | Apparatus method and system of an ultra sensitivity optical fiber magneto optic field sensor |
CN103091528B (en) * | 2011-11-04 | 2015-09-16 | 深圳市众望达光电有限公司 | A kind of optical-fiber-type current transformer |
US9535097B2 (en) | 2012-07-19 | 2017-01-03 | Gridview Optical Solutions, Llc. | Electro-optic current sensor with high dynamic range and accuracy |
US9146358B2 (en) | 2013-07-16 | 2015-09-29 | Gridview Optical Solutions, Llc | Collimator holder for electro-optical sensor |
US11079412B1 (en) | 2019-01-10 | 2021-08-03 | Honeywell Federal Manufacturing & Technologies, Llc | Optical current monitor |
CN110988435B (en) * | 2019-11-29 | 2023-01-17 | 中国人民解放军92942部队 | Optical path system for improving signal-to-noise ratio of optical fiber current sensor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0081367A1 (en) * | 1981-12-07 | 1983-06-15 | Sumitomo Electric Industries Limited | Magnetic field and electric current measuring device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5735760A (en) * | 1980-08-14 | 1982-02-26 | Matsushita Electric Ind Co Ltd | Current measuring device |
JPS5839953A (en) * | 1981-09-02 | 1983-03-08 | Tokyo Electric Power Co Inc:The | Measuring apparatus of electric current |
SU1453330A1 (en) * | 1987-04-08 | 1989-01-23 | Научно-Исследовательский Институт По Передаче Электроэнергии Постоянным Током Высокого Напряжения | Magnetooptic method of measuring current intensity |
US5149962A (en) * | 1991-06-03 | 1992-09-22 | Simmonds Precision Products, Inc. | Proximity detector using faraday effect and bidirectional transmission |
-
1992
- 1992-01-29 GB GB929201896A patent/GB9201896D0/en active Pending
-
1993
- 1993-01-22 US US08/256,713 patent/US5486754A/en not_active Expired - Fee Related
- 1993-01-22 AU AU33619/93A patent/AU671269B2/en not_active Ceased
- 1993-01-22 DE DE69328825T patent/DE69328825T2/en not_active Expired - Fee Related
- 1993-01-22 JP JP5513019A patent/JPH07503318A/en active Pending
- 1993-01-22 WO PCT/GB1993/000134 patent/WO1993015410A1/en active IP Right Grant
- 1993-01-22 EP EP93902433A patent/EP0624252B1/en not_active Expired - Lifetime
- 1993-01-22 CA CA002128735A patent/CA2128735A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0081367A1 (en) * | 1981-12-07 | 1983-06-15 | Sumitomo Electric Industries Limited | Magnetic field and electric current measuring device |
Non-Patent Citations (4)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 6, no. 104 (P-122)(982) 15 June 1982 & JP,A,57 035 760 (MATSUSHITA) 26 February 1982 * |
PATENT ABSTRACTS OF JAPAN vol. 7, no. 121 (P-199)(1266) 25 May 1983 & JP,A,58 039 953 (TOKYO DENRYOKU) 8 March 1983 * |
PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS vol. 125, no. 10, October 1978, STEVENAGE GB pages 935 - 941 A.M. SMITH 'Noise reduction in optical measurement systems' * |
Week 8929, Derwent Publications Ltd., London, GB; AN 89-213114 & SU,A,1 453 330 (HIGH VOLTAGE) 23 January 1989 * |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997013155A1 (en) * | 1995-10-04 | 1997-04-10 | Minnesota Mining And Manufacturing Company | Verdet constant temperature-compensated current sensor |
US5621319A (en) * | 1995-12-08 | 1997-04-15 | Allegro Microsystems, Inc. | Chopped hall sensor with synchronously chopped sample-and-hold circuit |
EP0810442A1 (en) * | 1996-05-30 | 1997-12-03 | Abb Research Ltd. | Magneto optical current sensor |
US5996376A (en) * | 1997-04-11 | 1999-12-07 | Digital Optics Corporation | Methods of forming optical rods including three-dimensional patterns on end faces thereof |
WO1998047032A3 (en) * | 1997-04-11 | 1999-03-04 | Digital Optics Corp | Optical transmission systems including optical rods with three-dimensional patterns thereon and related structures |
WO1998047032A2 (en) * | 1997-04-11 | 1998-10-22 | Digital Optics Corporation | Optical transmission systems including optical rods with three-dimensional patterns thereon and related structures |
WO1999008120A1 (en) * | 1997-08-12 | 1999-02-18 | Siemens Aktiengesellschaft | Method for measuring a magnetic field and device for carrying out said method |
US6297625B1 (en) | 1997-08-12 | 2001-10-02 | Siemens Aktiengesellschaft | Method and device for measuring a magnetic field |
EP2439562A1 (en) * | 2010-10-08 | 2012-04-11 | PHOENIX CONTACT GmbH & Co. KG | Lightning detection system |
WO2012045873A1 (en) * | 2010-10-08 | 2012-04-12 | Phoenix Contact Gmbh & Co. Kg | Lightning detection system |
CN102156212A (en) * | 2011-01-04 | 2011-08-17 | 武汉理工大学 | Method and device for measuring heavy current of magnetic coupled fiber grating |
CN109917169A (en) * | 2019-03-15 | 2019-06-21 | 上海大学 | A kind of light vortex fibre optic current sensor based on single seam detection |
CN109917169B (en) * | 2019-03-15 | 2021-08-10 | 上海大学 | Optical vortex optical fiber current sensor based on single slit detection |
Also Published As
Publication number | Publication date |
---|---|
CA2128735A1 (en) | 1993-08-05 |
AU671269B2 (en) | 1996-08-22 |
US5486754A (en) | 1996-01-23 |
EP0624252A1 (en) | 1994-11-17 |
GB9201896D0 (en) | 1992-03-18 |
EP0624252B1 (en) | 2000-06-07 |
JPH07503318A (en) | 1995-04-06 |
AU3361993A (en) | 1993-09-01 |
DE69328825D1 (en) | 2000-07-13 |
DE69328825T2 (en) | 2001-01-18 |
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