Testing electrically conductive lines to determine electrical ch

Details Testing electrically conductive lines to determine electrical ch Testing electrically conductive lines to determine electrical ch

1975-10-14

1978-09-12

Olms, Douglas W.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 51, H04B 346

Patent

active

041139984

ABSTRACT:
A two-wired telephone testing system employing a low frequency test signal which is a submultiple of the power line frequency. This test signal is applied between the two-wires or between either wire at a point of potential reference (ground). A measure of the integrated value of the current between the connected points is then made for a period equal to one-half cycle of the applied signal with one polarity and one-half cycle with the polarity of the measured signal reversed. The integration periods are selected to be in phase with the applied signal for determining conductance and 90.degree. out of phase for determining susceptance. Direct current measurement can also be made for the same time periods.

REFERENCES:
patent: 3678379 (1972-07-01), Arvay et al.
patent: 3808381 (1974-04-01), Jacobs et al.
patent: 3812303 (1974-05-01), Stewart
patent: 3891895 (1975-06-01), Wittlinger

Affiliated with

Also associated with

Rating

Testing electrically conductive lines to determine electrical ch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Testing electrically conductive lines to determine electrical ch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing electrically conductive lines to determine electrical ch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2385550