METHOD FOR LEAK TIGHTNESS CONTROL AND DETERMINING LEAK POINT COORDINATE IN PRODUCT PIPELINE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC G01M3/24 F17D5/06 

FIELD: measuring equipment.

SUBSTANCE: acoustic signals are received in the first and the second pipelines (13, 14) located in parallel to each other by means of four acoustic sensors (1-4). Wherein the acoustic sensors (1-4) are arranged in pairs on each pipeline at a given distance (h1) along their length. Correlative processing of the acoustic signals from the acoustic sensors (1-4) is performed. The distances to the correlation function peaks are determined. Based on the difference in the correlation function peaks of the first pipeline (13) containing a leak (12) and the second pipeline (14) not containing a leak, the leak point coordinates in the pipeline are determined. The device for implementing the method comprises four acoustic sensors (1-4), and the first, second, third and fourth receiving paths located in the housing (10), a processing unit, an adder. Each receiving path contains a series-connected amplifier, a filter, an analog-to-digital converter. The receiving paths are connected to the acoustic sensors (1-4) and the processing unit. The processing unit is connected to the adder.

EFFECT: increasing the accuracy of determining a leak point in a pipeline.

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