Self-calibrating electricity meter
US6815942B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Sep 25, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R35/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electricity meter performs a self-calibration operation. According to an exemplary embodiment, the meter includes a measurement circuit for generating power information representative of measured power. A controller is operably coupled to the measurement circuit and includes an input for receiving reference standard information. The controller compares the power information generated by the measurement circuit to the reference standard information and generates a compensation signal in dependence upon the comparison. The compensation signal is used to calibrate the measurement circuit. Preferably, the meter is capable of being electrically connected to, and calibrated concurrently with at least one other meter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.