System for land seismic cable fault location

Details System for land seismic cable fault location System for land seismic cable fault location

1977-04-15

1979-01-09

Moskowitz, Nelson

Communications: electrical

Selective

Having electron beam device

340514, 324 51, 1791753F, G01V 124, G01V 122

Patent

active

041340990

ABSTRACT:
A system for locating discontinuities in land seismic geophone cables, which cables have plural sections with electrical connectors at the ends of each section. One of the connectors of each section has a relay incorporated with it, and includes a circuit for connecting a short circuit between all of the plural geophone circuit conductors. The short circuit connection is made when the relay is actuated, and the relay is actuated upon command from a recording station.

REFERENCES:
patent: 334969 (1886-01-01), Milliken
patent: 1977707 (1934-10-01), Waitzer
patent: 3105883 (1963-10-01), Higson
patent: 3360617 (1967-12-01), Munson
patent: 3916371 (1975-10-01), Broding
patent: 4010442 (1977-03-01), Broding
patent: 4052694 (1977-10-01), Fredriksson

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