FIELD: pipeline transport.
SUBSTANCE: group of inventions can be used to diagnose technical condition of transitions of main pipelines (MP) via roads. Apparatus comprises a protective casing, two acoustic systems arranged on the MP on opposite sides of the road. Acoustic systems are made in the form of antenna arrays of piezoelectric transducers attached to MP to provide dry acoustic contact. Acoustic systems can operate in different modes specified by the program unit.
EFFECT: technical result obtained from inventions is higher information value on technical state of transition for virtually any width of road.
2 cl, 5 dwg
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