Electric linear motor and testing device

An electric linear motor having a motor housing, which is penetrated by an armature recess, in which a first magnet arrangement is accommodated in a stationary manner and in which an armature, which has a second magnet arrangement, is accommodated to be linearly movable along a movement path, wherein one of the magnet arrangements comprises a coil arrangement with at least one coil and wherein the other magnet arrangement is configured as a permanent magnet arrangement, wherein at least one of the magnet arrangements comprises a magnetic flux guide configured as a profile body, a profile axis of which is oriented parallel to the movement path and which has at least one cross-sectional taper which is configured for a local increase of a flux resistance for a magnetic flux in the magnetic flux guide, oriented along the movement path of the armature in order to determine at least one preferred position for the armature along the movement path, wherein the cross-sectional taper has in the transverse direction to the movement path an extension which is less than an extension of the profile body in the transverse direction to the movement path.