ACOUSTIC INSTALLATION FOR THE EMISSION OF A TRANSVERSE SOUND WAVE IN A GAS ENVIRONMENT Russian patent published in 2021 - IPC H04R7/00 

FIELD: acoustics.

SUBSTANCE: invention relates to acoustics. An acoustic installation for the emission of a transverse sound wave in a gaseous medium contains a housing, a flat membrane, a drive for acoustic vibrations of a transverse acoustic wave. In this case, the housing is made in the form of a support frame, and a sound-emitting flat rectangular membrane is fixed on the frame. The membrane is made in the form of a honeycomb filler, a surface layer glued to the honeycomb structure on both sides and a stabilizing impregnating composition based on polyurethane primers and varnishes, covering the surface layers. The drive of acoustic vibrations is made in the form of an acoustic vibration exciter including ferrite parts of the magnetic circuit. The exciter of acoustic vibrations is attached at one end to a flat membrane within a special line passing along the plane of a rectangular membrane and emerging from any vertex of a rectangular membrane, and ending at a point on the opposite vertex of the horizontal side of the membrane, located at a distance of 2/3 of the opposite side of the membrane from the vertex horizontally.

EFFECT: technical result is an increase in the effective operation of an acoustic installation for radiation of a transverse wave, an expansion of the operating frequency range, an increase in the efficiency of generating a low-frequency signal with a transverse component of an acoustic wave.

1 cl, 5 dwg