MY125659A - Electro-optic voltage sensor for sensing voltage in a e-field - Google Patents
Electro-optic voltage sensor for sensing voltage in a e-fieldInfo
- 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
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)
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)
| 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)
| 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 |
| EP0067683B1 (en) * | 1981-06-12 | 1986-08-20 | Kabushiki Kaisha Meidensha | 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 |
-
1996
- 1996-12-05 AU AU13291/97A patent/AU1329197A/en not_active Abandoned
- 1996-12-05 EP EP96944754A patent/EP0866975A4/en not_active Withdrawn
- 1996-12-05 JP JP52210397A patent/JP2001526770A/en active Pending
- 1996-12-05 WO PCT/US1996/019346 patent/WO1997022012A1/en active Application Filing
- 1996-12-05 CA CA002239722A patent/CA2239722C/en not_active Expired - Lifetime
- 1996-12-07 MY MYPI9605149 patent/MY125659A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA2239722C (en) | 2003-04-29 |
| WO1997022012A1 (en) | 1997-06-19 |
| EP0866975A4 (en) | 1998-12-23 |
| CA2239722A1 (en) | 1997-06-19 |
| AU1329197A (en) | 1997-07-03 |
| JP2001526770A (en) | 2001-12-18 |
| EP0866975A1 (en) | 1998-09-30 |
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