ELECTRODYNAMIC TRANSDUCER FOR UNDERWATER ACOUSTICS

摘要

The invention relates to electrodynamic transducers intended to emit acoustic waves in the marine environment. It consists in providing the dome (109) of such a transducer with a horn (110) sliding in the body (103) of the transducer with a nozzle (111) whose play is extremely reduced. This reduces the effects of a shock wave from a possible external explosion, so as not to tear the sealing membrane (115) between the roof and the body. Radial ribs (116) increase the rigidity of this moving element. A toric and elastic air chamber (121) makes it possible to compensate for the effects on the moving part of the hydrostatic pressure and those of gravity. It provides transducers resistant to external explosions.