EXCITER OF LOW-FREQUENCY HYDROACOUSTIC OSCILLATIONS Russian patent published in 2009 - IPC H04R1/44 

FIELD: physics, acoustics.

SUBSTANCE: invention is related to procedure of low-frequency hydroacoustic signals excitation. Exciter of low-frequency hydroacoustic oscillations comprises the following components: rod piezoelectric transducer that consists of set of piezoelectric washers with alternating direction of polarisation parallel to axis of mentioned set; electrodes installed between every pair of piezoelectric washers, at that all odd and even electrodes are connected to appropriate lead for connection of setting signal source; tight vessel, inside of which rod ceramic transducer is installed; pushers, every of which is located opposite to one of rod ceramic transducer ends; elastic tight uncouplers, the first flange of which is tightly connected to response flange of appropriate pusher, and the second flange is connected to response flange of body; levers, every of which radially stretches from appropriate end of rod ceramic transducer, one end of every lever in group is hingedly fixed to appropriate end of rod ceramic transducer, the other end of every lever in group is hingedly fixed to appropriate pusher, and medium part of every lever in group is hingedly fixed to stationary support.

EFFECT: increased power of excited oscillations.

8 cl, 2 dwg