Global patent index - EP 1068539 A1

EP 1068539 A1 2001-01-17 - DEVICE FOR MEASURING AN ELECTRICAL VOLTAGE OR AN ELECTRICAL FIELD USING AN ELECTRO-OPTICAL CRYSTAL WITH A TAPERED CROSS-SECTION

Title (en)

DEVICE FOR MEASURING AN ELECTRICAL VOLTAGE OR AN ELECTRICAL FIELD USING AN ELECTRO-OPTICAL CRYSTAL WITH A TAPERED CROSS-SECTION

Title (de)

VORRICHTUNG ZUM MESEN EINER ELEKTRISCHEN SPANNUNG ODER EINES ELEKTRISCHEN FELDES MITTELS EINES ELEKTROOPTISCHEN KRISTALLS MIT EINER VERJUNGUNG IM QUERS

Title (fr)

DISPOSITIF POUR MESURER UNE TENSION ELECTRIQUE OU UN CHAMP ELECTRIQUE A L'AIDE D'UN CRISTAL ELECTRO-OPTIQUE A SECTION TRANSVERSALE RETRECIE

Publication

EP 1068539 A1 (DE)

Application

EP 99915498 A

Priority

  • DE 9900590 W
  • DE 19810781 A

Abstract (en)

[origin: DE19810781C1] The apparatus is used to measure an electric voltage or an electric field strength. It has an arrangement for coupling polarised measurement light into a Pockels sensor device to which the voltage or field is applied by means of first and second electrodes (8,9). The sensor device has at least one electro-optical crystal (3). This changes the polarisation of the light in depending on the electric voltage of field strength. The crystal is arranged with the cover surface (10) of the first electrode (8) and the base surface (11) of the second electrode (9) lying opposite each other. The cross-section surface (13) of the crystal running from the cover surface to the base surface is tapered.

IPC 1-7 (main, further and additional classification)

G01R 15/24; G02F 1/03

IPC 8 full level (invention and additional information)

G01R 15/24 (2006.01); G02F 1/03 (2006.01)

CPC (invention and additional information)

G02F 1/0305 (2013.01); G01R 15/242 (2013.01); G01R 15/247 (2013.01)

Citation (search report)

See references of WO 9945401A1

Designated contracting state (EPC)

CH DE FR GB LI

EPO simple patent family

DE 19810781 C1 19990826; EP 1068539 A1 20010117; WO 9945401 A1 19990910

INPADOC legal status

2002-03-20 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010901

2001-09-26 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010809

2001-01-17 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000908

2001-01-17 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): CH DE FR GB LI