Patent ID: 7800981
Filing Date: 2010-09-21
Classification: G01V

Abstract:
1. A portable seismograph comprising: a support and containment structure comprising at least a bottom portion made of a material having a seismic impedance value ranging between 2×10 at least three sensors placed orthogonally to one another, each comprising at least one electrodynamic or capacitive transducer, said sensors being attachable to said bottom portion; a level to position the containment structure horizontally, said level being exposed through a side of said containment structure opposite said opened side; a control unit connected to said sensors and designed to record, to manage acquisition mode and to process data, said control unit further comprising a signal amplification digitization and filtering system, a mass memory, external controls to adjust acquisition, a display, and a microprocessor; a GPS receiver adjacent to said side of said containment structure opposite said opened side; an external surface comprising a mirror, or metalized finish; an independent internal power source; and means for coupling to the ground designed not to perturb the seismic noise detectable by the sensors; wherein said means for coupling to the ground further comprising nail or screw elements protruding from said bottom portion of said support and containment structure, and a pad made of granular material or with rheological behavior and having a seismic impedance ranging between 2×10 wherein a portion of said control unit being exposed through said side of said containment structure opposite said opened side.