DEVICE TO DIAGNOSE TECHNICAL CONDITION OF METAL PIPES Russian patent published in 2014 - IPC G01N27/82 F17D5/00 

FIELD: measurement equipment.

SUBSTANCE: device comprises at least two three-component sensors of induction of magnetic field, arranged on different levels by height relative to the pipeline, the first and second amplifiers, an analogue-digital converter (ADC), a device to determine difference of values of magnetic field induction by axes X, Y, Z, a controller, a memory unit and an information display device. Additionally the device comprises a unit of value detection and direction of full vector of magnetic field induction, measured by the first three-component sensor, a unit to detect value and direction of full vector of magnetic field induction measured by the second three-component sensor, and a unit of detection of difference and angle between full vectors of induction of the magnetic field, measured by the first and second three-component sensors.

EFFECT: possibility to establish full and true picture of magnetic field fluctuation, including their value and shape.

2 dwg