Nutation sensor and nutation control system for a dual-spin stabilized satellite
US4824052A · kind A · utility
4Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1987 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Jun 18, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64G1/244
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A nutation sensor and nutation control system using a relative spin phase sensor in a dual-spin stabilized satellite is disclosed. The relative spin phase sensor provides index pulses indicative of the relative spin phase and rate between the satellite rotor and platform. Nutation of the satellite perturbs the relative spin position of the rotor and platform and means are provided for analyzing index pulse arrive times to calculate nutation of the satellite. In the nutation control system, means are provided to apply a nutation damping torque to the satellite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.