Seismic exploration with a swinging-weight vibrator

Details Seismic exploration with a swinging-weight vibrator Seismic exploration with a swinging-weight vibrator

1982-01-07

1988-06-07

Moskowitz, Nelson

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

367189, G01V 104

Patent

active

047490578

ABSTRACT:
A swinging-weight seismic vibrator is driven by the energy stored in a flywheel. Since the sweep rate is large near the resonance of the vibrator-ground coupling, and small away from resonance, a measure of compensation of the resonance is automatically obtained. Weights of variable eccentricity may be provided. Multiple vibrators may be used, provided that no two vibrators generate the same frequency at times separated by less than the maximum reflection time of interest.

REFERENCES:
patent: 3229784 (1966-01-01), Lyons et al.
patent: 3288243 (1966-11-01), Silverman

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