DEVICE FOR IN-PIPE DIAGNOSTICS OF PIPELINE TECHNICAL STATE Russian patent published in 2019 - IPC G01N27/82 G01N29/14 

FIELD: defectoscopy.

SUBSTANCE: use: for in-pipe diagnostics of field transport and main fluid pipelines pumping nonaggressive liquids, oil, oil products and gas. Summary of invention consists in the fact that device for in-pipe diagnostics of main pipelines, made with possibility of movement inside pipeline under pressure of pipeline transported fluid, includes split housing of spherical shape with placed inside it sensors of magnetic field, temperature, pressure and acoustic sensors, accelerometers and device for recording data, measured by sensors, further comprises a power supply and a clock frequency generator, wherein the acoustic emission sensors are configured to receive the emission signal in the audio and supersonic frequency regions, as magnetic field sensors there used are at least fourteen single-component constant magnetic field sensors uniformly and symmetrically located along the inner surface of the housing so that a high degree of mutual alignment thereof is provided.

EFFECT: technical result is higher accuracy and reliability of detection and assessment of defects, location and geometrical dimensions of defect.

6 cl, 3 dwg