Doppler measurement instrument and doppler measurement processing method
US9625295B2 · kind B2 · utility
2Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2012 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Jan 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid flow measurement instrument is provided. The measurement instrument includes a sensor producing a time domain signal representative of reflections of an emitted signal; and a meter being coupled to the sensor and configured to: receive the time domain signal; create two or more spectral estimates for the time domain signal, wherein said two or more spectral estimates have different frequency ranges and resolutions; determine a frequency offset value using one or more of the two or more spectral estimates; and convert the frequency offset value into a fluid velocity. Other aspects are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.