Mounting and control means for full waveform seismic source

Details Mounting and control means for full waveform seismic source Mounting and control means for full waveform seismic source

1984-11-30

1987-04-28

Jordan, Charles T.

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

181114, 181121, 367189, G01V 102

Patent

active

046606742

ABSTRACT:
A full waveform seismic source is described which is adapted to propel a heavy mass powerfully downward against the surface of an earth-contacting target plate. Means are provided for rotating the barrel of the actuator about two mutually perpendicular horizontal axes so that energy can be delivered to the earth along a plurality of preselected slant paths. In this way, any desired combination of compressional and shear waves, both SH and SV type, may be generated at a point on the earth's surface. The target is contoured so that any slant path followed by the accelerating mass always impacts the target normal to its surface.

REFERENCES:
patent: 3731386 (1973-05-01), Kreiensen et al.
patent: 4390077 (1983-06-01), Fulkerson
patent: 4421198 (1983-12-01), Miller

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