MAGNETIC DETECTION DEVICE WITH TWO PATHWAY CIRCULATION PATHS

摘要

P device for detecting the presence of a magnetic element, the detection device comprising at least one permanent magnet (4) associated with a magnetic flux sensor (5) by at least one armature (6) for circulating towards the sensor a magnetic flux generated by the magnet, the armature comprising a first arm a second arm (9, 10) respectively defining a first and a second circulation path of the magnetic flux, at least the first path having a variable reluctance which is reduced when the magnetic element is opposite the first arm. / P