Electronic gauge with at least one movable arm and a retraction device

摘要

Electronic gauge for checking linear dimensions of mechanical pieces, comprising a casing, at least a movable arm, a position transducer and a retraction device. The retraction device includes an electromagnet fixed to an element supported by the casing, a flat armature adjustably fixed to the movable arm and a positive stop fixed to the armature and adapted to abut against another positive stop fixed to the electromagnet.