FIELD: measurement technology. SUBSTANCE: device has airtight container 1 with center of gravity shifted downwards relative to longitudinal axis, flexible cups 2 fixed in front and rear parts of container 1, path-control pickup 3, computing and control unit 4, recorder 5, three ultrasonic meters of radial distances each consisting of three "n" zones, ultrasonic receive-transmit transducers 6, 7, 8 positioned on container 1 in its front, middle and rear parts, three-component gyroscopic meter 9 of angular velocity, and three-component apparent acceleration meter 10. Ultrasonic meters of receive-transmit transducers include measuring module 11 and wheels 12 of airtight container 1. Device is installed in pipeline 13 and provided with storage battery 14. EFFECT: higher measurement results. 6 dwg
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