測震儀勘察
Refraction Seismology
Seismic exploration uses underground sound wave. The seismograph is the instrument that processes the vibration signals, record the time required for the waves to travel from the impact point to different grophone locations. From this information we can compute thickness and shapes of subsurface features, as well as the velocities.
Seismic exploration uses underground sound wave. The seismograph is the instrument that processes the vibration signals, record the time required for the waves to travel from the impact point to different grophone locations. From this information we can compute thickness and shapes of subsurface features, as well as the velocities.