FIELD: equipment for imparting vibrations to objects. SUBSTANCE: double-stroke electromagnetic vibration exciter has N pairs of coils 10 positioned in casing 1 on movable bases 3 in symmetry relative to axis of flat pulling anchor. Coils are connected to self-oscillating circuit with feedback sensor formed as inductive anchor vibration sensor 20. Vibration exciter flexible system has several pairs of flexible members-springs 9, which are positioned in symmetry with respect to anchor axis, with one end of each spring being supported by movable base and other end abutting supports 7, which are positioned in movable bases 3. Rigidity of flexible system is adjusted by mechanisms, which regulate spring-loading by displacing movable bases. These mechanisms are mounted on casing 1. EFFECT: increased efficiency in creating vibrating force. 2 dwg
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