Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1977-07-11
1979-06-12
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
G01R 3100
Patent
active
041581709
ABSTRACT:
A line current detector for use in telecommunications systems to monitor line condition. The detector uses an optical or photo electric device whose input is modulated by line current. A photo transistor, electrically isolated from the line, senses the modulated output of the detector to produce a condition responsive output. The optical device is preferably a liquid crystal device. The output sensor is isolated from the line.
REFERENCES:
patent: 3346811 (1967-10-01), Perry et al.
patent: 3590374 (1971-06-01), Evans et al.
patent: 3662263 (1972-05-01), Bensel
patent: 3941939 (1976-03-01), Holmes et al.
patent: 3991367 (1976-11-01), Chapman et al.
patent: 4032843 (1977-06-01), Loucks
Baxter John V.
George Rodger G.
Sterling Henley F.
Weir Donald A.
Chaban Marvin M.
International Standard Electric Corporation
Krawczewicz Stanley T.
Raden James B.
LandOfFree
Line current detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Line current detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Line current detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1110982