Seismic recording method using separate recording units for each

Details Seismic recording method using separate recording units for each Seismic recording method using separate recording units for each

1977-09-26

1979-05-01

Birmiel, Howard A.

Communications: electrical

Selective

Having electron beam device

340 155GC, 340 155DP, 340347AD, G01V 116, G01V 128

Patent

active

041526910

ABSTRACT:
A system of land (field) seismic exploration which eliminates the requirement for a main land cable to transmit seismic data from the sensors to a central recorder is disclosed. The system includes: a seismic source for generating seismic energy; a data acquisition unit for collecting seismic information; and a master control and collating unit for transmitting coded identification and command signals to the source and data acquisition units and collating the data from the individual tapes of the data acquisition units. Each data acquisition unit includes its own controller, sensor group, analog to digital converter, signal conditioner data recorder, and radio frequency receiver. The analog to digital converter includes a plurality of bounded amplifiers to provide a number of fixed gain stages operative throughout a 120 db dynamic range. The signal conditioner includes a large scale integrated metal oxide semiconductor chip processor for performing desired seismic data processing functions.

REFERENCES:
patent: 2950469 (1960-08-01), Raasch
patent: 3062315 (1962-11-01), Herzog
patent: 3134957 (1964-05-01), Foote et al.
patent: 3283295 (1966-11-01), Montgomery
patent: 3329950 (1967-07-01), Shafer
patent: 3419853 (1968-12-01), Silverman
patent: 3436752 (1969-04-01), Phil
patent: 3458721 (1969-07-01), Maynard
patent: 3467958 (1969-09-01), McKinney
patent: 3699567 (1972-10-01), Kiyasu
patent: 3742489 (1971-10-01), Lefevre
patent: 3748638 (1973-07-01), Montgomery, Jr. et al.

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