Method and apparatus for phase determination
US7212930B2 · kind B2 · utility
22Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2004 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Oct 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R21/133
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electricity metering method and apparatus is provided for determining the phase of first waveform relative to a harmonically distorted, second waveform having cycles temporally distinguished by an occurrence of an amplitude that is neither zero amplitude nor a maximum amplitude of said waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.