TRANSMISSION-RECEPTION DEVICE OF ACOUSTIC SIGNALS FOR MARINE ENVIRONMENT EXPLORATION

摘要

A device is described for the transmission and reception of acoustic signals, particularly for submarine exploration, comprising a group of electroacoustic transducers (17) arranged around a reception electroacoustic transducer (18). All transducers are of a paraboloidal reflector type and are arranged with their axes parallel to each other and having their openings on the same plane orthogonal to these axes. Each of the transmission transducers has a pair of electrodes (30), disposed near the focus, connected to an electrostatic energy supplier (3), in order to simultaneously receive from it a predetermined energy amount, which is different for each transducer, so as to generate an electric discharge and, consequently, an acoustic pulse. The reception transducer has a piezoelectric detector near its focus which is connected to circuits and devices (5) for processing the received signals.