How does the GPR methodology work?
Ground Penetrating Radar (GPR) is a non-destructive method of geophysical investigation. Using high-frequency electromagnetic waves, GPR maps differences in lithology, cavities, objects, and structures buried in the subsurface.
This efficient method employs equipment equipped with a dipole antenna and a processing unit for real-time analysis. During mapping, small high-frequency electrical pulses (between 10 and 2500 MHz) are emitted by the transmitting antenna, ensuring high resolution.
The signal is sent to the ground, where the different structures reflect part of the electromagnetic wave. A receiving antenna captures the reflected signal, transmitting the information to the storage unit, where it is interpreted.
Embora o emprego do GPR em mineração e exploração mineral talvez não receba tanta atenção quanto em outras indústrias, sua utilização é bem documentada.