FIELD: measurement equipment.
SUBSTANCE: acoustic signal of a sound range is emitted into a pipeline wall bordering the medium that surrounds the pipeline or flows inside the pipeline, sound waves reflected from an uneven formation, refracted and having passed through it are registered, and location and size of uneven formations are defined on the basis of time, amplitude, frequency and speed analysis of registered waves.
EFFECT: provision of simple, valid and efficient diagnostics of uneven formations on inner and outer surfaces of pipelines, making it possible to detect location and size of irregularities with quite high accuracy.
19 cl, 6 dwg
