Patent ID: 8125214
Filing Date: 2012-02-28
Classification: G01R

Abstract:
1. A device for determining electrical current in each conductor among a plurality of conductors, over time, comprising: two sensors for measuring magnetic fields generated by electrical current flowing in each conductor among a plurality of conductors, wherein a first sensor is placed non-contiguous and close enough to a single conductor to measure, over time, the magnetic field generated by the electrical current in the single conductor, thereby yielding a first measurement over time, wherein a second sensor is placed at a known distance from the first sensor, and is placed non-contiguous and close enough to the single conductor to measure, over time, the magnetic field generated by the electrical current in the single conductor, thereby yielding a second measurement over time, a processor that receives the first measurement and the second measurement, wherein the processor calculates the electrical current in each single conductor over time based on the first measurement over time, the second measurement over time, and the known distance.