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MY125659A - Electro-optic voltage sensor for sensing voltage in a e-field - Google Patents

Electro-optic voltage sensor for sensing voltage in a e-field

Info

Publication number
MY125659A
MY125659A MYPI9605149A MY125659A MY 125659 A MY125659 A MY 125659A MY PI9605149 A MYPI9605149 A MY PI9605149A MY 125659 A MY125659 A MY 125659A
Authority
MY
Malaysia
Prior art keywords
voltage
electro
sensor
optic
signal processor
Prior art date
Application number
Inventor
Gregory K Woods
Todd W Renak
Original Assignee
Bechtel Bwxt Idaho Llc
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
Priority claimed from US08/569,338 external-priority patent/US5892357A/en
Priority claimed from US08/570,152 external-priority patent/US5731579A/en
Application filed by Bechtel Bwxt Idaho Llc filed Critical Bechtel Bwxt Idaho Llc
Publication of MY125659A publication Critical patent/MY125659A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • G01R1/07—Non contact-making probes
    • G01R1/071—Non contact-making probes containing electro-optic elements

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

A MINIATURE ELECTRO-OPTIC VOLTAGE SENSOR SYSTEM CAPABLE OF ACCURATE OPERATION AT HIGH VOLTAGES. THE SYSTEM EMPLOYS A TRANSMITTER,A SENSOR DISPOSED ADJACENT TO BUT OUT OF DIRECT ELECTRICAL CONTACT WITH A CONDUCTOR ON WHICH THE VOLTAGE IS TO BE MEASURED, A DETECOR, AND A SIGNAL PROCESSOR. THE TRANSMITTER PRODUCES A BEAM OF ELECTROMAGNETIC RADIATION WHICH IS ROUTED INTO THE SENSOR WHERE THE BEAM UNDERGOES THE POCKELS ELECTRO-OPTIC EFFECT. THE ELECTRO-OPTIC EFFECT CAUSES PHASE SHIFTING IN THE BEAM, WHICH IS IN TURN CONVERTED TO A PAIR OF INDEPENDENT BEAMS, FROM WHICH THE VOLTAGE OF A SYSTEM BASED ON ITS E-FIELD IS DETERMINED WHEN THE TWO BEAMS ARE NORMALIZED BY THE SIGNAL PROCESSOR. THE SENSOR CONVERTS THE BEAM BY SPLITTING THE BEAM IN ACCORDANCE WITH THE AXES OF THE BEAM’S POLARIZATION STATE (AN ELLIPSE WHOSE ELIPTICITY VARIES BETWEEN -1 AND +1 IN PROPORTION TO VOLTAGE) INTO AT LEAST TWO AM SIGNALS (35 AND 36). THESE AM SIGNALS (35 AND 36) ARE FED INTO A SIGNAL PROCESSOR AND PROCESSED TO DETERMINE THE VOLTAGE BETWEEN A GROUND CONDUCTOR AND THE CONDUCTOR ON WHICH VOLTAGE IS BEING MEASURED. (FIGURE 1)
MYPI9605149 1995-12-08 1996-12-07 Electro-optic voltage sensor for sensing voltage in a e-field MY125659A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/569,338 US5892357A (en) 1995-12-08 1995-12-08 Electro-optic voltage sensor for sensing voltage in an E-field
US08/570,152 US5731579A (en) 1995-12-11 1995-12-11 Electro-optical voltage sensor head

Publications (1)

Publication Number Publication Date
MY125659A true MY125659A (en) 2006-08-30

Family

ID=27075040

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9605149 MY125659A (en) 1995-12-08 1996-12-07 Electro-optic voltage sensor for sensing voltage in a e-field

Country Status (6)

Country Link
EP (1) EP0866975A4 (en)
JP (1) JP2001526770A (en)
AU (1) AU1329197A (en)
CA (1) CA2239722C (en)
MY (1) MY125659A (en)
WO (1) WO1997022012A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5534653B2 (en) * 2008-05-28 2014-07-02 株式会社東芝 Photovoltage sensor
CN109709408B (en) * 2019-03-08 2024-05-10 广东省职业病防治院 Space direct current electric field measuring equipment
IT201900019262A1 (en) * 2019-10-18 2021-04-18 Prysmian Spa Electrical cable structure analysis method and apparatus
CN113917242A (en) * 2021-09-28 2022-01-11 华中科技大学 Conductor corona discharge electric field non-intervention measurement system and application thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1484684A (en) * 1966-03-16 1967-06-16 Merlin Gerin Electro-optical voltage reducers
US4147979A (en) * 1975-04-16 1979-04-03 Siemens Aktiengesellschaft Movable probe carrying optical waveguides with electro-optic or magneto-optic material for measuring electric or magnetic fields
US4412173A (en) * 1981-01-26 1983-10-25 The Oregon Graduate Center For Study And Research Apparatus using leakage current for measuring resistivity
DE3272713D1 (en) * 1981-06-12 1986-09-25 Meidensha Electric Mfg Co Ltd Electric field detector
US4908568A (en) * 1987-06-09 1990-03-13 Siemens Aktiengesellschaft Mechanical probe for optical measurement of electrical potentials
US5113131A (en) * 1990-02-16 1992-05-12 Southern California Edison Company Voltage measuring device having electro-optic sensor and compensator
US5113331A (en) * 1991-08-09 1992-05-12 General Motors Corporation Vehicle headlamp assembly
FI915818A0 (en) * 1991-12-11 1991-12-11 Imatran Voima Oy OPTICAL RF-GIVARE FOER MAETNING AV SPAENNING OCH ELFAELT.
JP2521395B2 (en) * 1992-08-31 1996-08-07 日本碍子株式会社 Optical voltage / electric field sensor

Also Published As

Publication number Publication date
CA2239722C (en) 2003-04-29
CA2239722A1 (en) 1997-06-19
EP0866975A1 (en) 1998-09-30
AU1329197A (en) 1997-07-03
EP0866975A4 (en) 1998-12-23
JP2001526770A (en) 2001-12-18
WO1997022012A1 (en) 1997-06-19

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