Horizontally polarized shear-wave vibrator seismic source

Details Horizontally polarized shear-wave vibrator seismic source Horizontally polarized shear-wave vibrator seismic source

1999-05-13

2000-09-19

Dang, Khanh

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

181114, 181121, G01V 102

Patent

active

061198048

ABSTRACT:
A dynamic force transducer for generating horizontally oriented shear forces and motion at a surface of a solid medium. A rigid frame is placed in direct contact with the surface of the solid medium. At least one pair of identical dynamic-force driver units is mounted on the frame to impart horizontally oriented forces to the frame. Symmetrical pairs of compliant springs support the force drivers, but the compliances of each pair of springs may be adjusted or interchanged with other similar springs to introduce different predetermined mechanical resonances. The driver units are excited to produce the horizontally oriented forces with one or more driver units imparting a pushing force and one or more driver units simultaneously imparting a pulling force.

REFERENCES:
patent: 5969297 (1999-10-01), Ambs

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