Communications: electrical – Selective – Interrogation response
Patent
1975-06-16
1977-10-04
Moskowitz, Nelson
Communications: electrical
Selective
Interrogation response
324 51, 1791753F, G01V 116, G01C 2700
Patent
active
040526941
ABSTRACT:
This invention relates to a method and apparatus for quick and convenient fault diagnosis of a geophone group-geophone cable complex of a geophysical data acquisition system used in the collection and recording of seismic information, such faults within each geophone group of such a system being identified, irrespective of the fact that a cable or cable segment is interconnected between the group under test and the fault-testing apparatus of the present invention.
REFERENCES:
patent: 3541436 (1970-11-01), Haggan
patent: 3612993 (1971-10-01), Tims et al.
patent: 3651399 (1972-03-01), Florance et al.
patent: 3717810 (1973-02-01), Spanbauer
Chevron Research Company
Freeland, Jr. R. L.
Messner H. D.
Moskowitz Nelson
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