Structural monitoring of wind turbine with fibre bragg grating sensors in each blade
US8545179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2007 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Nov 25, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49336
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for the structural monitoring of blades 1 on a wind turbine. Each blade 1 has respective optical fiber bragg grating sensors 5. The system has a number of input connectors, which connect to the strain sensors 5 of respective blades 1. A single output connector connects to a data processing device 3 which processes signals from the strain sensors 5. The input connectors each have a signal path to the output connector that is different in length to the signal path from the other input connectors, such that signals from a given blade 1 can be identified at the data processing device 3 by the time of arrival of the signals. The system has the advantage that the each of the blades 1, including the sensors attached to it or embedded within it can be identical and therefore interchangeable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.