Electromagnet with impedance element

Abstract

An electromagnet, traversed by a longitudinal axis, has an armature arranged longitudinally movable along a stroke path, and a shielding element arranged in a magnetic circuit. The shielding element extends along the longitudinal axis and forms at least one impedance changing means on the stroke path, which defines an impedance change position for the armature, at which the electrical impedance can change as the armature approaches and/or passes the impedance change position, compared with a reference position on the stroke path of the armature.

Dependencies are inferred from the claim text.