Systems and methods for measuring electrical power usage in a structure and systems and methods of calibrating the same
US8805628B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2011 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Jan 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R22/063
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.