EP 0927357 A1 19990707 - SENSOR TO MEASURE ELECTRICAL CURRENT INTENSITY AND/OR VOLTAGE
Title (en)
SENSOR TO MEASURE ELECTRICAL CURRENT INTENSITY AND/OR VOLTAGE
Title (de)
SENSOR ZUM MESSEN DER ELEKTRISCHEN STROMSTÄRKE UND/ODER SPANNUNG
Title (fr)
DETECTEUR POUR MESURER L'INTENSITE ET/OU LA TENSION D'UN COURANT
Publication
Application
Priority
- DE 9701459 W 19970710
- DE 19638456 A 19960919
Abstract (en)
[origin: WO9812565A1] Magneto-optical sensor (1) to measure current intensity (1) with the aid of temperature dependent Verdet constant (V) of a fibre coil (3) placed in an electromagnetic field produced by electric current (i). The temperature dependent decay period ( DELTA t) of the fluorescence of a fluorescent material (6) placed near the coil is measured and the pertaining temperature (T) of the coil and the Verdet constant value (Veff) pertaining to the temperature are determined so that the current intensity can be established. The method can be used in current sensors and voltage sensors.
IPC 1-7
IPC 8 full level
G01R 15/24 (2006.01)
CPC (source: EP US)
G01R 15/247 (2013.01 - EP US); G01R 15/246 (2013.01 - EP US)
Citation (search report)
See references of WO 9812565A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9812565 A1 19980326; CA 2266596 A1 19980326; EP 0927357 A1 19990707; US 6140634 A 20001031
DOCDB simple family (application)
DE 9701459 W 19970710; CA 2266596 A 19970710; EP 97933623 A 19970710; US 25494399 A 19990319