Patent ID: 6199016
Filing Date: 2001-03-06
Classification: G01V

Abstract:
Apparatus for conducting a geophysical survey, comprising:(a) a sensor for receiving seismic signals from the ground;(b) an analog to digital conversion device in communication with said sensor, said analog to digital conversion device having a resonator which resonates at a predetermined frequency; and(c) a computer having:(i) a recording program for storing time/amplitude samples from the signals received from the analog to digital conversion device, wherein each file of time/amplitude samples comprises one path point;(ii) a Fourier analysis computer program for performing a Fourier analysis of the frequency spectrum and the phase shifts of the path points, and for computing spectral profiles of the underground;(iii) an image building program for creating an image file from the output file of the Fourier analysis program; and(iv) a graphics program for displaying and printing a profile of underground layers.