Measurement and control of the output force of a seismic vibrato

Details Measurement and control of the output force of a seismic vibrato Measurement and control of the output force of a seismic vibrato

1977-11-21

1980-01-15

Birmiel, Howard A.

Communications, electrical: acoustic wave systems and devices

Transmitter systems

181119, 181121, G01V 114

Patent

active

041841441

ABSTRACT:
A system for controlling the force imparted to the ground by a seismic vibrator. A signal is generated which is related to the peak force imparted to the earth and the control signal amplitude is varied in response thereto to achieve the desired force magnitude.

REFERENCES:
patent: 3045476 (1962-07-01), Bell
patent: 3141325 (1964-07-01), Hajian
patent: 3208550 (1965-09-01), Castanet et al.
patent: 3216525 (1965-11-01), Fail et al.
patent: 3761874 (1973-09-01), Landrum, Jr.
patent: 3840090 (1974-10-01), Silverman
patent: 3854118 (1974-12-01), Pelton
patent: 3881167 (1975-04-01), Pelton et al.
patent: 4049077 (1977-09-01), Mifsud
patent: 4063613 (1977-12-01), Silverman

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