System and method for determining capacitance and cable length i

Details System and method for determining capacitance and cable length i System and method for determining capacitance and cable length i

1977-01-05

1978-07-25

Strecker, Gerard R.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324 52, G01R 2726, G01R 3108

Patent

active

041032250

ABSTRACT:
Method and apparatus utilizing constant current charging and discharging to determine the capacitance of a telephone cable or other circuit element. An output signal corresponding to the time required to increase the voltage from a first level to a second level and back to the first level corresponds to the capacitance of the element and, in the case of a cable, the length of the cable.

REFERENCES:
patent: 2455543 (1948-12-01), Williams
patent: 3370229 (1968-02-01), Hamburger et al.
patent: 3452272 (1969-06-01), Collins et al.
patent: 3453535 (1969-07-01), Anglin
patent: 3530379 (1970-09-01), Demerliac
patent: 3612997 (1971-10-01), Paulkovich
patent: 3761805 (1973-09-01), Dornberger
patent: 3800216 (1974-03-01), Hamilton
patent: 3824459 (1974-07-01), Uchida
patent: 3944914 (1976-03-01), Simmonds
patent: 4032841 (1977-06-01), Knippelmier

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