Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Patent
1994-10-12
1997-01-14
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With coupling means
336173, 336225, G01R 120
Patent
active
055943322
ABSTRACT:
A method of sensing alternating current in a cable having at least a pair of longitudinal conductors each of the pair carrying a current equal or unequal in absolute value to the other in mutually opposite directions, is comprised of disposing a coil with its lateral plane adjacent the cable in a position whereby electromagnetic fields caused by the currents intersect primarily different portions of the coil and induce current in the coil, and detecting the induced current in the coil.
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patent: 4717872 (1988-01-01), Wagner et al.
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patent: 5053695 (1991-10-01), Canter
patent: 5066903 (1991-11-01), Ochi
patent: 5172052 (1992-12-01), Wells
Harman R. Keith
McLaughlin Brian
Reshetnikov Gennady
Wong C. Brian
Iris Electronics Corporation
Karlsen Ernest F.
Kobert Russell M.
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