Measurement arrangement useful for controlling the attitude of a three-axis stabilized satellite, corresponding evaluation process, regulating system and process
CA 2117090 C · Owner: Fichter, Walter · Inventors: Fischer, Horst-Dieter; Fichter, Walter; Surauer, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A measurement arrangement is useful for controlling the attitude of a threeaxis stabilized satellite equipped with sun-sensors for determining the orientation of, the sun (sun vector) with respect to a satellite-fixed coordinate system as , well as, with speed gyroscopes for detecting components of the satellite speed of rotation, vector .omega.. It is necessary that the measurement range of the sun-sensors cover the, round angle in a preselectable plane (for example XY plane) and perpendicularly, thereto a limited angular range of maximum ~.alpha.2max on both sides of the plane. In a ddition, only an integrating speed gyroscope carrying out measurements in a single measurement axis …
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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
- Filed September 4, 1992 and granted February 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 2014.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.