Proximity switch with magnetic-field-sensitive sensor

摘要

In a proximity switch which is modulated by iron or ferritic parts and the sensor arrangement (22) of which has a magnetic-field-sensitive sensor (5), for example Hall generator of field plate, arranged on a permanent magnet arrangement (1), it is provided, in order to achieve a high temperature stability, that the permanent magnet arrangement has at least one zone (6) free of a magnetic field, for example at an annular magnetic pole (3), and that the sensor (5) is arranged in the zone (6) free of the magnetic field. <IMAGE>