Depth transducer system for a seismic streamer cable

Details Depth transducer system for a seismic streamer cable Depth transducer system for a seismic streamer cable

1980-10-27

1983-02-22

Wilbur, Maynard R.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367106, 367154, G01V 138

Patent

active

043750893

ABSTRACT:
A seismic streamer cable, composed of a plurality of cable sections includes a common transmission line and an internally mounted inductive element in each section. The inductive elements are coupled in parallel to the common transmission line. A plurality of depth transducers, each associated with an inductive pickup, are secured externally to the streamer cable at desired intervals, adjacent to one of the internal inductive elements. A control signal is periodically transmitted through the transmission line and is received, by inductive coupling, at each transducer after a selected delay. In response to the delayed control signal, the transducers inductively launch a depth-proportional signal into the transmission line for reception by a depth readout device.

REFERENCES:
patent: 2735303 (1956-02-01), Haase
patent: 3299399 (1967-01-01), Bowers
patent: 3783444 (1974-01-01), Leger
patent: 4041442 (1977-08-01), Marquardt
patent: 4135141 (1979-01-01), Caldwell et al.
patent: 4193129 (1980-03-01), Wiggins et al.

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