The HVSR, or Nakamura method, allows to highlight the possible resonance frequency of a soil. This value is calculated by making the ratio between the average of the horizontal spectra on the vertical spectrum (H / V) of the natural vibrational signal.
Reflection seismic is a method of geophysical analysis of the subsoil that allows to detect with high precision the characteristics and the geometry of the rock formations underlying the earth's surface.
In structural engineering, modal analysis uses the overall mass and stiffness of a structure to find the various periods at which it will naturally resonate. These periods of vibration are very important to note in earthquake engineering.
Solutions, instruments and software for seismology, geophysics and vibrometry
In compliance with the 22th March DCPM, the SARA Electronic Instrument srl laboratori will remain closed until the new decree or subsequent ordinance. We are still supporting our client and giving services in smart-working mode through digital communication. the seismic monitoring and data recovering service with our client remain active.