Method of providing a series of flyer groups connected to a remo

Details Method of providing a series of flyer groups connected to a remo Method of providing a series of flyer groups connected to a remo

1977-07-27

1979-02-20

Birmiel, Howard A.

Communications: electrical

Selective

Having electron beam device

340 155MC, 174 70R, G01V 122

Patent

active

041409930

ABSTRACT:
The method and apparatus of the present invention are described in which connection (and disconnection) of a plurality of geophones associated with a series of stations of a digital seismic data acquisition system is greatly simplified without sacrificing flexibility as to the number of geophone flyers per station or the interval spacing per station and also without the addition of separate subcabling in the internal linkage of the flyer to the field digitizing equipment. The method utilizes a multiple-phone flyer-jumper connected to one channel of a series of channels of a remote data acquisition and telemetering circuit (RDATC). Each RDATC acts in combination with a group of geophone flyers, say 1, 2, 3, etc., to store, amplify, filter, gain control and digitize analog data from each group of flyers and then telemeter the data to recording circuitry in the field truck. Each flyer group can be flexibly made up of two, three, four or more flyer-jumpers; each flyer-jumper includes a central multi-conductor cable segment terminating at each of its ends in the central leg of multi-armed connector. A plurality of series/parallel connected geophones, say 9 in number are used in combination with the central segment. At the end of the arms of each multi-armed connector pass another conductor cable segment (similar to the central segment, but called the "branch cable segment") in which only two of the cables are actively connected to the selected conductor pairs of the central segment. At the other end of each branch cable is a hermaphroditic connector paralleling them electrically. Repairs to flyer-jumper in the field is relatively simple. Of interest: each hermaphroditic connector is color coded to facilitate geophone flyer-jumper field setup and connection in a variety of arrangements with a minimum of helper mix up.

REFERENCES:
patent: 3916371 (1975-10-01), Broding
patent: 3930145 (1975-12-01), Fort et al.
patent: 3938073 (1976-02-01), Fort et al.
patent: 4001769 (1977-01-01), Fort et al.

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