Nutation sensor and nutation control system for a dual-spin stabilized satellite
CA 1325666 C · Owner: Smay, John W. · Inventors: Smay, John W.; Gonzalez, Eugene, Jr.; Yocum, John F. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A nutation sensor and nutation control system using a relative spin phase sensor (28) in a dual-spin stabilized satellite (20) is disclosed. The relative spin phase sensor (28) provides index pulses indicative of the relative spin phase and rate between the satellite rotor (24) and platform (22). Nutation of the satellite perturbs the relative spin position of the rotor (24) and platform (22) and means (44, 45) are provided for analyzing index pulse arrive times to calculate nutation of the satellite. In the nutation control system means (32) are provided to apply a nutation damping torque to the satellite.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 28, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.