Electrical Methods

VES

Instruments to perform Vertical Electric Sounding (VES). These instruments allow to reconstruct the vertical variation of electrical resistivity in areas where the subsoil heterogeneity can be approximated as an horizontal layering.

• PASI 16GL

  With this instrument and the available tools, a maximum opening of the current dipole of 1000 m can be set up. The instrument can be also used to perform stationary field measurements on the cells of water-saturated unconsolidated sediments described at the section SIP and DC.

ERGI

Instruments to perform Electrical Resistivity Ground Imaging (ERGI) surveys.

• PASI Polares

  With the available tools, allows to use up to 3x16 electrodes, with a maximum spacing of 5 m. It works with an alternating current signal, allowing fast measurements and the simultaneous acquisition of data related to resistivity and induced polarization.