LOW-FREQUENCY LONGITUDINALLY-BENDING PIEZOCERAMIC CONVERTER Russian patent published in 2020 - IPC B06B1/06 H04R17/00 

FIELD: acoustics.

SUBSTANCE: invention can be used for radiation of low-frequency acoustic signals. Essence of the invention lies in the fact that the low - frequency longitudinally-bending piezoceramic converter comprises a reinforced rod active element consisting of piezoceramic washers polarized in thickness, housing with barrel-shaped side wall, on which axial profile slots are made, sealed with elastic material, as well as end covers, wherein each axial profile slot of the transducer is glued with its own elastic insert, wherein each elastic insert in the longitudinal section is made with a recessing geometrical shape of the axial profiled slot, and in cross section have arched shape, rounded part of which is directed to outer surface of barrel-shaped side wall of housing, and non-rounded parts are glued with outer sides to side surfaces of axial profiled slot, wherein the area of gluing occupies entire area of side surface of axial profiled slot.

EFFECT: technical result is improvement of reliability, resistance to external hydrostatic pressure and Q-factor of converter.

1 cl, 2 dwg