METHOD FOR LOCALISATION OF BURIED PIPELINE LEAK AND DEVICE FOR IMPLEMENTATION THEREOF Russian patent published in 2010 - IPC G01M3/08 F17D5/06 

FIELD: measuring technology.

SUBSTANCE: inventions refer to instrumentation and can be used to localise a leak in buried pipelines of heat and water supply systems. This effect is ensured by application of a device for buried pipeline leak localisation that contains a transmitter, transmitting antenna, two receivers, two receiving antennas, a phase detector, an output voltage metre, a synchroniser, a dead time block, three keys, a heterodyne, two amalgamators, two intermediate-frequency amplifiers, two multipliers, three narrow-band filters, an amplitude limiter, a comparator, an indicator, three phase inverters, four adders, two 90° phase shifters, an amplitude detector, and two strip filters.

EFFECT: inventions aim at increasing a noise stability, selectivity and accuracy of leak localisation in the buried pipeline ensured by suppression of the false signals (noise) received through intermodulation channels.

2 cl, 4 dwg