ABEM Terraloc Pro 2
96
Vibroseis
Vibroseis is a seismic method in which a vibrator is used as an energy source to generate
a controlled wave train, instead of the usual impulsive sources (e.g. hammer, explosives,
shot guns, etc.). This method requires recording of the source signal for reference.
A sinusoidal vibration of continuously varying frequency is applied during a sweep
period typically lasting for several seconds (>10 s.). The sweep may start at either low,
or high frequencies, and it can be linear or nonlinear. The recorded data, comprising
many super positioned wave trains, has to be correlated with the source signal. The
correlated record resembles a conventional seismic record such as results from an
impulsive source.
To Next Page
Loading...
