FIELD: equipment testing insulation of underground pipe-lines. SUBSTANCE: system includes station of cathode protection, signal converting unit, communication channel. Pipe-line is utilized in the capacity of communication channel. System is fitted with transmitter, receiver, transmitting and receiving antennas fabricated in the form of coils whose windings are placed directly on pipe-line. EFFECT: expanded operational capabilities. 1 dwg
Title | Year | Author | Number |
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Authors
Dates
2001-06-20—Published
1998-10-05—Filed