Electricity: measuring and testing – Conductor identification or location
Patent
1975-06-03
1976-08-24
Strecker, Gerard R.
Electricity: measuring and testing
Conductor identification or location
1791753A, G01R 3102, G01R 1916
Patent
active
039769399
ABSTRACT:
This specification discloses a system comprising a source for selectively applying a test signal to a selected conductor at a first end of a cable and a detector having a plurality of input terminals for connection, respectively, to at least some of the conductors at the second end of the cable. The detector operates to perform individual comparisons of the amplitudes of the signals on its input terminals with the amplitude of a decreasing reference signal and to produce a signal after a predetermined number of such comparisons in excess of a predetermined value have occurred. This last-mentioned signal causes a display unit to indicate the input terminal on which appeared the signal that produced the last comparison in excess of the predetermined value.
REFERENCES:
patent: 2869077 (1959-01-01), Houk
patent: 3252088 (1966-05-01), Palmer
patent: 3401238 (1968-09-01), Williams et al.
patent: 3430137 (1969-02-01), Eager et al.
patent: 3644687 (1972-02-01), Richards
patent: 3699438 (1972-10-01), Webb
patent: 3902026 (1975-08-01), Rogers et al.
Cruce Tommy Clay
Woodall Ernest Joseph
Bell Telephone Laboratories Incorporated
Logan H. L.
Strecker Gerard R.
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