Torsional anomalies detection system
US10259572B2 · kind B2 · utility
2Cited by
23References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2015 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Jan 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H11/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for determining failure diagnosis of drive systems of rotorcrafts through measuring the spectral characteristics of rotational oscillations and torsional oscillations and steady windup of a drive shaft. Mechanical anomalies of the drive system will alter the spectral characteristics of rotational oscillations and torsional oscillations and steady windup as detected by a pair of variable reluctance sensors in conjunction with a radial grating mounted on the drive shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.