Electricity: measuring and testing – Conductor identification or location
Patent
1988-08-16
1990-06-26
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Conductor identification or location
324540, 324532, G01R 3102, H02G 106
Patent
active
049375199
ABSTRACT:
An apparatus and method for identifying individual conductors in a multi-conductor cable, which will also identify a short or open circuit condition. One end of the multi-conductor cable is connected to a battery powered transmitter unit which sequentially generates a unique pulse on each conductor. That is, the transmitter generates a pulse on a first conductor having a unique pulse width and after a small delay follows the pulse on the first conductor with a pulse on a second conductor having a unique pulse width, preferably twice the pulse width. The transmitter sequentially steps through each conductor in a cable to generate the unique pulses. The battery powered receiver unit is connected to the other end of the multi-conductor cable with a test probe and a reference probe connected to any two conductors. The receiver determines the pulse width of the pulse on the test probe and because the pulse width is unique to a particular conductor, identifies the conductor and visually displays the conductor identification to the operator. The reference probe acts as a ground during the time period that a pulse is present at the test probe. Advantageously, the apparatus can also determine if two or more of the conductors are shorted or if an open circuit exists.
REFERENCES:
patent: 3644687 (1972-02-01), Richards, Jr.
patent: 3681686 (1972-08-01), Connally
patent: 3742350 (1973-06-01), White
patent: 3976939 (1976-08-01), Cruce et al.
patent: 4041383 (1977-08-01), Howard
patent: 4114091 (1978-09-01), Howard
patent: 4445086 (1984-04-01), Bulatao
patent: 4578636 (1986-03-01), Bakke
patent: 4652813 (1987-03-01), Bakke
Eisenzopf Reinhard J.
Jupiter Toy Company
Solis Jose M.
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