Propeller health monitoring
US11708175B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2018 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Nov 16, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M1/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of monitoring the health of an aircraft propeller whilst the propeller is in operation, the propeller having a plurality of blades extending radially outwardly from hub arms of a propeller hub, which in turn extend radially outwardly from a central axis extending through the propeller and a propeller drive shaft, is provided. The method comprises obtaining measurements representative of the strain in each of at least some of the hub arms using strain sensors, each of the strain sensors being provided on a respective hub arm. A corresponding propeller health monitoring system, an aircraft propeller comprising the system and an aircraft comprising the propeller are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.