AEROELECTRIC PROSPECTING METHOD USING LIGHTWEIGHT UNMANNED AERIAL VEHICLE Russian patent published in 2020 - IPC G01V5/02 G01S13/88 

FIELD: geophysics.

SUBSTANCE: invention relates to geophysics and remote sounding of the Earth and can be used for geological mapping, prospecting and exploration of mineral deposits. Method of aerial electrical survey using an unmanned aerial vehicle (UAV) consists in the fact that electromagnetic field component is recorded using an electroprospecting meter, which is installed on UAV of light class, wherein the electromagnetic field generator is on the ground, the survey is carried out while the UAV is moving on the autopilot according to the flight task pre-prepared and corresponding constant altitude UAV over the relief (from 3 meters), the UAV movement speed can vary from 0 to 20 m/s, electromagnetic field component measurements are performed in automatic mode, and spatial connection of measurement points is carried out by means of satellite navigation system and, optionally, altimeter. As electromagnetic field source there can be used electric prospecting generator with grounded or ungrounded line or loop, or field of remote radio communication systems and navigation of audio range (up to several tens of kilohertz), or similar ultra-long-wave radio station. Meter on UAV is equipped with magnetic and electric antennae, allowing to perform measurements of vertical and horizontal components of electromagnetic field.

EFFECT: method increases accuracy, detail, information value and accuracy of survey compared to aerial electrical survey from manned carriers, obtain detailed data reflecting resistance of rocks in plan and section at depth of up to 100 meters, reducing costs for performance of electrical prospecting, improving accessibility and environmental friendliness of aerial electrical survey.

7 cl, 1 dwg