Phase measurement in measuring device
US7110899B2 · kind B2 · utility
0Cited by
18References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 2004 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Oct 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/849
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for determining the phase of a signal in a measurement device having a digital signal processor are described. The signal is digitised and the digitised signal, or a signal derived therefrom, is numerically correlated with a numerically generated reference signal. In one embodiment, the reference signal has a predetermined phase. In a further embodiment, the numerically generated reference signal has a reference phase and the phase is determined from the result of the correlation. The techniques described herein may reduce the amount of information lost in determining the signal phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.