EP 1725837 A1 20061129 - MAGNET SENSOR ARRANGEMENT
Title (en)
MAGNET SENSOR ARRANGEMENT
Title (de)
MAGNETSENSORANORDNUNG
Title (fr)
SYSTEME DE CAPTEURS MAGNETIQUES
Publication
Application
Priority
- EP 2005050185 W 20050118
- DE 102004011810 A 20040311
- DE 102004063539 A 20041230
Abstract (en)
[origin: WO2005088259A1] The invention relates to a magnet sensor arrangement (1) containing sensor elements (7,8) that are sensitive to magnetic fields, the electrical properties of said elements being modifiable according to a magnetic field that can be influenced by a mobile passive transmitter (11). Said magnet sensor arrangement (1) comprises two sensor elements (7,8) in a gradiometer arrangement, that are respectively associated with one of two magnetic regions (4, 5) of a permanent magnet embodied as a gap magnet (2;20;23), said regions being arranged at a pre-determined distance (sa). The magnetic regions (4,5) and the gap magnet (2;20;23) are arranged, in terms of, for example, the wedge shape, dimensions (h,b,t), gap length (sa), gap depth (st), and positions thereof in relation to the sensor elements (7,8), in such a way that the offset of the output signal of the sensor elements (7,8) is minimised in the gradiometer arrangement.
IPC 8 full level
G01D 5/16 (2006.01); G01D 5/14 (2006.01); G01R 33/022 (2006.01)
CPC (source: EP US)
G01D 5/147 (2013.01 - EP US)
Citation (search report)
See references of WO 2005088259A1
Designated contracting state (EPC)
DE FR GB HU
DOCDB simple family (publication)
WO 2005088259 A1 20050922; EP 1725837 A1 20061129; US 2008116884 A1 20080522; US 8120351 B2 20120221
DOCDB simple family (application)
EP 2005050185 W 20050118; EP 05701536 A 20050118; US 58867805 A 20050118