FIELD: pipelines.
SUBSTANCE: invention relates to a device for monitoring the state of metal pipelines from the surface of the soil above the pipeline. Device for detecting defects of pipelines, branches and tie-ins into a pipeline consists of a receiver containing a housing. Housing accommodates units of constant magnetic field sensors and a GPS/Glonass receiver. Device comprises at least three, maximum four units of constant magnetic field sensors. Axes of sensors in units of constant magnetic field sensors are parallel, and centres of sensors are located on one axis, and each unit of sensors of constant magnetic field contains at least one, maximum three sensors. Receiver sensors are connected to analogue signal processing unit, to preamplifier units, which in turn are connected to analogue-to-digital converters, and they are connected to microprocessor, to which memory unit and indicator are connected. Device contains a power supply unit feeding all elements of the receiver.
EFFECT: device can be serviced by one operator and significantly reduces time and cost of pipeline inspection.
8 cl, 4 dwg
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