METHOD FOR DIAGNOSIS OF TECHNICAL CONDITION OF PIPE-LINE SEA SECTION Russian patent published in 2002 - IPC

FIELD: diagnosis of technical condition of pipe-line sea sections, applicable for emergency warning and monitoring of technical condition of underwater pipe-lines with the aid of hydroacoustic aids. SUBSTANCE: a hydroacoustic antenna made in the form of a great number of series-connected multibeam antennas with fanned- beam directivity patterns is positioned in parallel with the pipe-line under check. The antenna monitors the parameters of pipe-line vibrations, as well as the radio-frequency noise in the leakage points by the passive method. The received signals are directed to the coastal equipment, where a decision on the technical condition of the pipe-line is taken. EFFECT: condition of diagnosis of the technical condition of the pipe-line sea section with a preset periodicity or continuously without a disturbance of the working process of product conveyance. 2 cl, 1 dwg