FIELD: measuring equipment.
SUBSTANCE: device for contactless diagnostic of the underground pipelines technical condition with possibility of calibration in the field condition, containing the constant magnetic field sensors unit, including of at least two single components sensors, connected by the fixtures from non-magnetic non-conductive material, constant magnetic field signals adding and subtracting device, data collection and control unit (DCCU) and the field computer, at that additionally the coils with solenoid windings are introduced, creating the gauge variable low-frequency magnetic field, located in the central part of the sensors fixtures from non-magnetic non-conductive material, precise resistors unit, generator, measuring unit, at that this coils with solenoid windings by means of double-twisted pair are connected to the precise resistors unit and the generator, besides, the precise resistors unit is connected to DCCU, which in its turn is connected to the field computer.
EFFECT: expansion of functionality and improvement of the device characteristics for contactless diagnostics of the underground pipelines technical condition.
4 cl, 1 dwg
