It is a methodology which exploits spatial auto correlation through vertical sensors synchronization. A seismic antenna is made up of many seismic sensors placed on the ground according to non – linear geometries.
The survey equipment used by Geo Alps S.r.l. for performing refracted seismic surveys is composed by: 4 seismograph Seismic Source, Model DAQLink III, 24 channel, scan resolution 24 bit, with the following specifications:
Conversion A/D: sigma delta high speed converter 24 bit;
Background noise: 0.2 microVolt RMS (at 2 msec);
Accuracy trigger: +/- 1 microsecond at every frequency of sampling
Sampling rate: from 0.0208 to 16,0 milliseconds;
Sampling frequency: from 48.000 to 62.5 sample/second;
Determination of soil parameters such as shear modulus and Bulk modulus