Modular device for reception, the acquisition and the transmissi

Details Modular device for reception, the acquisition and the transmissi Modular device for reception, the acquisition and the transmissi

1990-10-31

1993-04-27

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367 77, 367 79, 34082552, H03G 320, G01V 122, H04R 900

Patent

active

052068358

ABSTRACT:
Modular device for the reception, the acquisition and the transmission, to a central control and recording unit, of signals picked up by a very large number of seismic acoustic receivers distributed along a streamer of great length under water in operation.
The receivers in each one of the sections (Tk) of the streamer are arranged in several groups and the receivers (H1 to Hp) of a same group are connected with an acquisition unit (U1 to Um) located close to them. All the units of each section are connected through digitized command and data transmission lines (LOC,BD) with a common memory and a transmission management unit in an interconnection box (Bk) at one end of the streamer section. Transferring a great part of the electronic equipment into the streamer sections is very favorable for the balancing of the streamer in the water, for obtaining a good signal to noise ratio and it facilitates the development and the exploitation of the material.

REFERENCES:
patent: 4398271 (1983-08-01), Cretin et al.
patent: 4408307 (1983-10-01), Harris
patent: 4523191 (1985-06-01), Cretin et al.
patent: 4583206 (1986-04-01), Rialan et al.
patent: 4628493 (1986-12-01), Nelson et al.
patent: 4635237 (1987-01-01), Benestad et al.
patent: 4779055 (1988-10-01), Beauducel et al.
patent: 4967400 (1990-10-01), Woods

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