Determining resonance frequency and quality factor
US10295449B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 17, 2014 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Mar 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02818
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for obtaining data from a density-viscosity (DV) sensor of a downhole tool, wherein the DV sensor comprises a resonating element disposed in a fluid flowing in a flowline of the downhole tool, and determining a resonance frequency and quality factor of the resonating element utilizing a nonlinear regression and/or a plurality of resonance modes exhibited by the obtained data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.