EP 2496459 B1 20140226 - WHEEL SENSOR
Title (en)
WHEEL SENSOR
Title (de)
RADSENSOR
Title (fr)
CAPTEUR DE ROUE
Publication
Application
Priority
- DE 102009053257 A 20091105
- EP 2010065425 W 20101014
Abstract (en)
[origin: WO2011054646A1] The invention relates to a wheel sensor, in particular for a track vacancy detection system, comprising at least one track-side inductive sensor device for detecting a magnetic field change as a result of the wheels (7) of a rail vehicle traveling over the track, wherein the sensor device comprises coils (3, 4; 10, 11) for compensating for interfering magnetic fields. In order to achieve particularly effective interference field suppression, according to the invention a transmitting coil (2, 9) supplied with alternating current and a receiving coil system are provided, which has a first receiving coil (3, 10) and a second receiving coil (4, 11) connected thereto in a duplex connection for suppressing external interference fields, wherein the first receiving coil (3, 10) is arranged above and the second receiving coil (4, 11) is arranged below the transmitting coil (2, 9).
IPC 8 full level
B61L 1/16 (2006.01)
CPC (source: EP)
B61L 1/165 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102009053257 A1 20110512; DE 102009053257 B4 20131002; EP 2496459 A1 20120912; EP 2496459 B1 20140226; WO 2011054646 A1 20110512
DOCDB simple family (application)
DE 102009053257 A 20091105; EP 10765628 A 20101014; EP 2010065425 W 20101014