System and method for electronic propeller blade angle position feedback
US9821901B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2014 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Jan 31, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2451
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for blade angle position feedback. The system comprises an annular member operatively connected to rotate with a propeller, a sensor fixedly mounted adjacent the annular member and configured for detecting a passage of each singularity as the annular member is rotated and axially displaced and for generating a sensor signal accordingly, the annular member and sensor configured for relative axial displacement between a first relative axial position and a second relative axial position respectively corresponding to the first and the second mode of operation, and a detection unit connected to the sensor for receiving the sensor signal therefrom, determining on the basis of the sensor signal a time interval elapsed between the passage of successive singularities, and computing from the time interval blade angle position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.