FIELD: mining.
SUBSTANCE: reference mark proposed contains a sharpened elongated rod with a stabiliser at the top represented by a sound frequency resonator. The resonator is represented by a system of multiple varied resilient plates, rods, membranes attached with one end to a common base represented by a sharp-angled prism as well as strings attached to a framework. The reference mark proposed is designed so that to enable usage in relay systems.
EFFECT: creation of a device installed immediately at problematic spots of water body bottoms providing for amplification of very weak infrasound oscillations.
2 cl, 10 dwg
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