Method for oscillation measurement on rotor blades or wind power installations
US8820149B2 · kind B2 · utility
2Cited by
10References
15Claims
0Family size
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Key dates
| Filing date | Dec 12, 2012 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Jan 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method for spectral evaluation of oscillation signals which have been obtained on a rotor blade of a wind power installation with an accelerations sensor. In doing so, instead of the otherwise conventional Fourier transform calculation, the spectral power density is computed. In the evaluation, also signal portions are considered which are not detected in the Fourier transform because they do not go back to oscillations which have been excited in the rotor blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.