Method of measuring frequency of AC power
US6559630B2 · kind B2 · utility
1Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2001 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Jul 6, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R23/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of measuring frequency samples a waveform, calculates waveform voltages based on an initial time base and adjust the time base for a particular waveform to determine the actual frequency of the measured AC power. A microprocessor can be used to implement the method so a small quantity of electronic elements is required, and the manufacturing cost is low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.