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The article presents the results of the development of the echolocation device for geophysical exploration at shallow depth. The principle of operation, block diagram and time diagrams of the echolocation device for geophysical exploration at shallow depths are outlined. The urgency of developing an echolocation device for geophysical exploration at shallow depth is revealed in the conditions of a lack of mineral resources, the need to replenish them with the help of discovering new deposits. It is analyzed that under the action of a shock wave, multi-frequency harmonic damped seismic waves are excited to the earth's surface, the frequency band of which is 1-200 Hz. When detonation generators are used to control the earth's crust, the duration of the impact pulse is on the order of one millisecond and the frequency range at 0.5 from the maximum amplitude of the echo signals is 20-400 Hz, which allows using higher-frequency harmonic components of echo signals to determine and classify the object at depth up to 100 m. Echolocation device for geophysical exploration is intended for detection and primary classification of objects by their acoustic rigidity and can be used for geophysical exploration at shallow depths (up to 100.0 m).

INVESTIGATION OF DEVICE FOR GEOPHYSICAL EXPLORATION AT SHALLOW DEPTH