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Apparatus for detecting the attitude of an artificial satellite

阅读:238发布:2021-12-04

专利汇可以提供Apparatus for detecting the attitude of an artificial satellite专利检索,专利查询,专利分析的服务。并且An artificial satellite includes a pair of sensors for detecting ultraviolet rays from the horizon of the earth. The pair of sensors are mounted on the satellite with a predetermined angle therebetween. When the angle of inclination of the spin axis of the satellite to the horizon thereof is relatively small both of the sensors will simultaneously detect rays from the horizon of the earth. The difference in the outputs of the two sensors will provide a measurement of the inclination angle of the spin axis and hence the attitude of the satellite. On the other hand, when the angle of inclination of the spin axis of the satellite to the horizon thereof is relatively large, one of the pair of sensors will be out of sight of the earth and the output of the other sensor will detect rays from the horizon of the earth to provide a measurement of the inclination angle of the spin axis of the satellite.,下面是Apparatus for detecting the attitude of an artificial satellite专利的具体信息内容。

1. An apparatus for detecting the attitude of an artificial satellite which comprises; a pair of sensors mounted on a sidewall of an artificial satellite, said sensors being mounted on the satellite such as to provide a predetermined angle therebetween for viewing the earth, said angle being determined in accordance with the height of the satellite from the earth surface, and means for detecting a difference in the outputs from said pair of sensors for enabling an angle of inclination of a spin axis of the satellite to the horizon thereof to be detected for providing the satellite attitude.
2. An apparatus for detecting the attitude of an artificial satellite according to claim 1, wherein: the outputs of said pair of sensors are treated such that when one of the same is eliminated the other will be employed for detecting the angle of inclination of the spin axis of the satellite to the horizon thereof.
3. An apparatus for detecting the attitude of an artificial satellite according to claim 1, wherein: the output levels of said pair of sensors, when the inclination angle of the spin axis of the satellite to the horizon thereof is near zero degrees, are selected to be substantially equal to the output level of one sensor at the time when the earth is out of sight of the other sensor.
4. An apparatus for detecting the attitude of an artificial satellite according to claim 1, wherein: said means for detecting a difference in the outputs from said pair of sensors includes a counting device, and said counting device being enabled to count only during a time interval from the leading edge of the output of one of said pair of sensors to the leading edge of the output of the other one of said pair of sensors.
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