Systems and methods for measuring electrical power usage in a structure and systems and methods of calibrating the same
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United States of America Patent
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Aug 12, 2014
Grant Date -
Mar 22, 2012
app pub date -
Jul 1, 2011
filing date -
Sep 25, 2009
priority date (Note) -
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Abstract
Some embodiments can concern a method of using a power consumption measurement device. The method can include: determining first magnetic field readings from main electrical supply conductors using sensors; after determining the first magnetic field readings, electrically coupling a first calibration load to the electrical power infrastructure; while the first calibration load remains electrically coupled to the electrical power infrastructure, determining second magnetic field readings from the main electrical supply conductors using the sensors; calibrating the power consumption measurement device using at least in part the first magnetic field readings and the second magnetic field readings, after calibrating the power consumption measurement device, determining third magnetic field readings from the main electrical supply conductors; and determining an electrical power used by the electrical power infrastructure using at least the third magnetic field readings and the one or more calibration coefficients. Other embodiments are disclosed.
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