FIELD: physics.
SUBSTANCE: radiating pistons (1) in a vibration source are fitted around an electric motor parallel its axis on connecting rods (2), which are connected to flanges (3) and (4), attached to faces of the inner (5) and outer (6) components of the electric motor. Component (5) is fitted on an axle (7) which joins rigid covers (8). The inside (9) of the source is sealed with elastic packing (10). One of the covers (6) is fitted with a connecting pipe (11) for letting compressed air into the cavity (9). Components of the electric motor are made in form of flywheels with equal moment of inertia, fitted with possibility of opposite rotational oscillatory motion. The length of connecting rods (2) is equal to the radius of the circle, along which connecting rods are movable attached to flanges (3, 4).
EFFECT: proposed device has regulated amplitude of the emitted signal at operating frequency, with elimination of circumferential loads in the arm of the piston and reduction of linear distortions of the emitted signal.
2 dwg
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