METHOD OF URGENT DIAGNOSTICS OF HIGH-PRESSURE PIPE-LINES Russian patent published in 1997 - IPC

FIELD: nondestructive testing of high-pressure pipe-line by acoustic method. SUBSTANCE: method consists in measurement of parameters of amplitudes of vibroacoustic noise at start of usage of article and after specified period of usage. State of article is evaluated by result of comparison of measured values with initial ones assumed as standards and by lack of realization of relations. Significant covariant functions of dispersion, mean values of amplitudes, Baxter and logarithmic functional are measured in the capacity of parameters of amplitude. measurements are performed by several transducers uniformly positioned over entire length of pipe-line. EFFECT: increased authenticity of method.