Inclinable vibratory seismic source

Details Inclinable vibratory seismic source Inclinable vibratory seismic source

1989-02-17

1989-08-01

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Vibrator-type transmitter

181119, 181121, G01V 102

Patent

active

048539074

ABSTRACT:
An improved inclinable vibratory seismic source arranged to be vehicle mounted including a base plate mounted for movement relative to the vehicle frame and for engagement with the ground. Hydraulic cylinders are provided for raising and lowering the base plate. A shaft is connected to the base plate by a U-Joint and has a vibratory mass located thereon. Also, located on the shaft is a reaction mass that is resiliently coupled to the vibratory mass and tuned so that the reaction mass remains virtually vibration free. Control apparatus is connected to the reaction mass to position the shaft and vibratory mass at a preselected azimuth and inclination.

REFERENCES:
patent: 3159233 (1964-12-01), Clynch
patent: 4253538 (1981-03-01), Weber et al.
patent: 4321981 (1982-03-01), Waters
patent: 4655314 (1987-04-01), Airhart
patent: 4660674 (1987-04-01), Airhart
patent: 4660675 (1987-04-01), Airhart
patent: 4662473 (1987-05-01), Betz
patent: 4712641 (1987-12-01), Chelminski
patent: 4719607 (1988-01-01), Airhart

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