HYDROACOUSTIC TRANSMISSION PATH Russian patent published in 2002 - IPC

FIELD: amplification equipment. SUBSTANCE: invention can be employed in multichannel transmission paths of underwater acoustic complexes to excite phased array with wide-band signals of modes of audio underwater communication and sound fixing and ranging. Hydroacoustic transmission paths has signal former 1, radiating antenna 9 and L- channel generator device. Each channel 2 of it includes control unit 3, N-channel pulse-duration converter 4, N-key power amplifiers 5, low-pass filter 6 and current measuring pickup 7 which output is connected to control input of control unit 3. Hydroacoustic transmission path is supplemented with centralized supply unit 8 and radiating antenna 9 and signal former 1 have L channels. Outputs of channels of signal former 1 are connected to inputs of corresponding channels of generator device which outputs are connected to inputs of proper channels of radiating antenna 9. Each channel 2 is supplemented with N additional current measuring pickup 11, diode- resistor adder 12 and N-channel transformer adder 13 which inputs is connected to outputs of key power amplifiers 5 through current measuring pickup 11 and which output is connected to output of channel 2 of generator device through low-pass filter 6 and current measuring pickup 7. Outputs of additional current measuring pickup 11 are connected to inputs of diode-resistor adder 12 which output is connected to input of protection of N channel pulse-duration converter 4. EFFECT: improved mass and dimension characteristics of hydroacoustic transmission path, enhanced operational reliability of transmission path. 1 cl, 12 dwg