WO1998005975A8 - Method and arrangement for optically detecting an electrical variable - Google Patents

Method and arrangement for optically detecting an electrical variable

Info

Publication number
WO1998005975A8
WO1998005975A8 PCT/DE1997/001480 DE9701480W WO9805975A8 WO 1998005975 A8 WO1998005975 A8 WO 1998005975A8 DE 9701480 W DE9701480 W DE 9701480W WO 9805975 A8 WO9805975 A8 WO 9805975A8
Authority
WO
WIPO (PCT)
Prior art keywords
electrical variable
optically detecting
arrangement
optical
measuring signal
Prior art date
Application number
PCT/DE1997/001480
Other languages
German (de)
French (fr)
Other versions
WO1998005975A1 (en
Inventor
Ottmar Beierl
Thomas Bosselmann
Michael Willsch
Original Assignee
Siemens Ag
Ottmar Beierl
Thomas Bosselmann
Michael Willsch
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 Siemens Ag, Ottmar Beierl, Thomas Bosselmann, Michael Willsch filed Critical Siemens Ag
Priority to EP97934422A priority Critical patent/EP0916095A1/en
Priority to CA002261901A priority patent/CA2261901A1/en
Publication of WO1998005975A1 publication Critical patent/WO1998005975A1/en
Publication of WO1998005975A8 publication Critical patent/WO1998005975A8/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
    • G01R15/247—Details of the circuitry or construction of devices covered by G01R15/241 - G01R15/246

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The invention concerns a method of optically detecting an electrical variable (I), periodic dependency being established between the optical measuring signal and the electrical variable (I) to be measured. According to the invention, two optical, periodically dependent measuring signals are used to obtain an unequivocal measuring signal. The resultant measured values are used as a value pair for unequivocally allocating an absolute value of the electrical variable (I).
PCT/DE1997/001480 1996-08-01 1997-07-14 Method and arrangement for optically detecting an electrical variable WO1998005975A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97934422A EP0916095A1 (en) 1996-08-01 1997-07-14 Method and arrangement for optically detecting an electrical variable
CA002261901A CA2261901A1 (en) 1996-08-01 1997-07-14 Method and arrangement for optically detecting an electrical variable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19631138.1 1996-08-01
DE19631138 1996-08-01

Publications (2)

Publication Number Publication Date
WO1998005975A1 WO1998005975A1 (en) 1998-02-12
WO1998005975A8 true WO1998005975A8 (en) 1999-05-27

Family

ID=7801529

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/001480 WO1998005975A1 (en) 1996-08-01 1997-07-14 Method and arrangement for optically detecting an electrical variable

Country Status (4)

Country Link
EP (1) EP0916095A1 (en)
CN (1) CN1230257A (en)
CA (1) CA2261901A1 (en)
WO (1) WO1998005975A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1144054C (en) * 1998-12-22 2004-03-31 西门子公司 Method and arrangement for optical detecting electric current using light signals that have different wavelengths
DE10039455A1 (en) * 2000-08-12 2002-02-21 Abb Patent Gmbh DC converter
WO2011154029A1 (en) 2010-06-07 2011-12-15 Abb Research Ltd High-voltage sensor with axially overlapping electrodes
WO2015124677A1 (en) 2014-02-21 2015-08-27 Abb Technology Ag Interferometric sensor
RU2677126C2 (en) 2014-02-21 2019-01-15 Абб Швайц Аг Interferometric sensor
CN111474553B (en) * 2020-06-22 2020-11-27 深圳市汇顶科技股份有限公司 Time-of-flight ranging method and device
DE102022210973A1 (en) * 2022-10-18 2024-04-18 Siemens Energy Global GmbH & Co. KG Measuring an electric current

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3141325A1 (en) * 1981-10-17 1983-04-28 BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau Method for measuring the current on an electric conductor by means of the Faraday effect
DE19580887D2 (en) * 1994-08-23 1997-05-28 Siemens Ag Method and arrangement for measuring electrical currents from at least two measuring ranges

Also Published As

Publication number Publication date
WO1998005975A1 (en) 1998-02-12
EP0916095A1 (en) 1999-05-19
CN1230257A (en) 1999-09-29
CA2261901A1 (en) 1998-02-12

Similar Documents

Publication Publication Date Title
CA2305437A1 (en) Fiber optic sensor system and method
AU4895397A (en) Monitoring system using an optical side tone as a test signal
CA2207126A1 (en) Optical fibre transmission systems
AU5875998A (en) Apparatus for measuring characteristics of an optical fibre
CA2433287A1 (en) Fibre optic sensor systems
CA2355091A1 (en) Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events
DE202004021208U1 (en) Portable instrument for measuring optical signal power, has detectors connected between connectors for propagating one of the bi-directional optical signals to one of the optical network terminals
CA2291807A1 (en) Signal-to-noise monitoring in wdm optical communication systems
AU7342798A (en) Measurement of signal quality
AU1919092A (en) Method for optically measuring chemical analytes
AU8925198A (en) High sensitivity fiber optic pressure sensor for use in harsh environments
WO2000013350A3 (en) Method and apparatus for optical performance monitoring in wavelength division multiplexed fiber optical systems
NO973865D0 (en) Method of determining connection quality, as well as receiver
AU8688191A (en) Method for measuring actual load at failure of optical fiber
EP1850441A3 (en) Improvements relating to electrical power transmission
AU1748500A (en) Fiber optic difference current sensor
DE69929640D1 (en) Method for adjusting the signal wavelength in an optical transmission system
AU6056696A (en) An acousto-optical waveguide device, tunable, with a polarisation independent response, and a method for the acousto-optical processing of optical signals
WO1998005975A8 (en) Method and arrangement for optically detecting an electrical variable
EP0812075A3 (en) Optical fibre transmission systems including dispersion measurement and compensation
CA2218951A1 (en) Optical signal power detection with signature bit pattern in wdm systems
AU4181499A (en) Method and system for determining the wavelength of light transmitted through anoptical fiber
AU5257400A (en) Elimination of polarization fading in unbalanced optical measuring interferometers
WO1997022883A3 (en) Optical measuring process and optical measuring arrangement for measuring an alternating quantity with intensity scaling
AU571885B2 (en) Optical fibre cable for detecting low temperature

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 97197759.3

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): CA CN JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1997934422

Country of ref document: EP

ENP Entry into the national phase in:

Ref document number: 2261901

Country of ref document: CA

Ref document number: 2261901

Country of ref document: CA

Kind code of ref document: A

WWP Wipo information: published in national office

Ref document number: 1997934422

Country of ref document: EP

AK Designated states

Kind code of ref document: C1

Designated state(s): CA CN JP US

AL Designated countries for regional patents

Kind code of ref document: C1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

CFP Corrected version of a pamphlet front page
CR1 Correction of entry in section i

Free format text: PAT. BUL. 06/98 UNDER (81) REPLACE THE EXISTING TEXT BY "CA, CN, JP, JP (UTILITY MODEL), US, EP (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)."

WWR Wipo information: refused in national office

Ref document number: 1997934422

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1997934422

Country of ref document: EP