Process and apparatus for analyzing and controlling energy trans

Details Process and apparatus for analyzing and controlling energy trans Process and apparatus for analyzing and controlling energy trans

1987-02-09

1988-07-05

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Vibrator-type transmitter

324 83FE, H04R 2300

Patent

active

047559764

ABSTRACT:
A method and apparatus for determining the occurrence and behavior of energy transference processes to the ground includes a vibrator which transfer seismic energy to the ground. Force and velocity signals are derived from acceleration signals measured at the baseplate and a reaction mass. The signals are filtered and multiplied together. The output components are separated and used for regulating the vibrator or for determining transference losses in the soil.

REFERENCES:
patent: 3208550 (1965-09-01), Castaret et al.
patent: 4184144 (1980-01-01), Rickenbacker
"Seismic Vibrator Control & the Downgoing P-wave," Sallas, J. J. Geophysics, vol. 49, #6, Jun. 1984, pp. 732-740.
"Amplitude & Phase Response of a Seismic Vibrator," Lerwill, W. E., Geophysical Prospecting, vol. 29, 1981, pp. 503-528.

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