EP 1601986 A2 20051207 - SYSTEM FOR MEASURING A LOW-FREQUENCY MAGNETIC FIELD AND SYSTEM FOR MODULATING A MAGNETIC FIELD USED IN SAID MEASURING SYSTEM
Title (en)
SYSTEM FOR MEASURING A LOW-FREQUENCY MAGNETIC FIELD AND SYSTEM FOR MODULATING A MAGNETIC FIELD USED IN SAID MEASURING SYSTEM
Title (de)
SYSTEM ZUR MESSUNG EINES NIEDERFREQUENTEN MAGNETFELDES UND SYSTEM ZUM MODULIEREN EINES MAGNETFELDS, DAS IN DEM MESSSYSTEM VERWENDET WIRD
Title (fr)
SYSTEME DE MESURE D'UN CHAMP MAGNETIQUE BASSE FREQUENCE ET SYSTEME DE MODULATION D'UN CHAMP MAGNETIQUE MIS EN OEUVRE DANS LE SYSTEME DE MESURE
Publication
Application
Priority
- FR 2004000620 W 20040312
- FR 0303133 A 20030313
Abstract (en)
[origin: FR2852398A1] The system has a source to create high frequency magnetic field that is to be amplitude modulated. The high frequency magnetic field combines itself with magnetic field to be measured to create a resulting magnetic field. An antenna (28) is placed in the resulting field. A magnetic field sensor associated with the antenna measures magnetic field function created at interior of the antenna by the resulting field. An independent claim is also included for an amplitude modulation system of a high frequency magnetic field by continuous or low frequency magnetic field.
IPC 1-7
IPC 8 full level
G01R 33/02 (2006.01); G01R 33/04 (2006.01)
CPC (source: EP)
G01R 33/02 (2013.01); G01R 33/04 (2013.01); H03F 2200/261 (2013.01)
Citation (search report)
See references of WO 2004083872A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2852398 A1 20040917; FR 2852398 B1 20050722; EP 1601986 A2 20051207; WO 2004083872 A2 20040930; WO 2004083872 A3 20050120
DOCDB simple family (application)
FR 0303133 A 20030313; EP 04720030 A 20040312; FR 2004000620 W 20040312