Combination shear wave and compressional wave seismic energy vib

Details Combination shear wave and compressional wave seismic energy vib Combination shear wave and compressional wave seismic energy vib

1980-02-11

1982-03-30

Birmiel, Howard A.

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

181114, 367189, 367 75, G01V 1133, G01V 1143

Patent

active

043219810

ABSTRACT:
A combination of fixed geometry of vibrating masses on a baseplate coupled to the ground, the masses being at a fixed angle to each other and of relatively variable phase, can be controlled to produce both compressional and shear waves simultaneously in a seismic exploration system.

REFERENCES:
patent: 3244252 (1966-04-01), Burns
patent: 3860087 (1975-01-01), Silverman
patent: 3934673 (1976-01-01), Silverman
patent: 4026383 (1977-05-01), Bedenbender et al.
patent: 4059820 (1977-11-01), Turpening
patent: 4143736 (1979-03-01), Fair
patent: 4222454 (1980-09-01), Airhart

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