FIELD: noise absorption systems utilized in shipbuilding, marine instrumentation. SUBSTANCE: salient feature of invention lies in insertion of sound-transmitting current-conducting thin plates insulated one from another in zone of location of converter of sonar. These plates are arranged over entire internal surface of dome. Opaque screen of sound- absorbing layers of monoradius bubbles which sizes are resonant to working frequency of acoustic converter of sonar is formed with the aid of former of rectangular pulses, key, constant voltage source, polarity switch, commutator 6 on specified section of dome. EFFECT: raised efficiency in reduction of level of noise in acoustic dome, increased operational range of sonar, enhanced authenticity of obtained information on sonar situation. 2 dwg
