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    • 10. 发明公开
    • Sun sensor for determining a position of the sun relative to an object
    • 奥尼姆斯特(Sonnensensor zur Bestimmung der Position der Sonne hinsichtlich)
    • EP2908095A1
    • 2015-08-19
    • EP14000559.6
    • 2014-02-17
    • Astrium GmbH
    • Ziegler, TobiasHechenblaikner, Gerald
    • G01C17/34B64G1/36
    • G01C17/34B64G1/363
    • The invention regards to a sun sensor for determining a position of the sun relative to an object, in particular for use in an attitude and orbit control system of a spacecraft, with at least one detector (1500; 1600). Each of the detectors comprises a substrate (1501; 1601, 1603), preferably at least coated with a metal exhibiting a vectorial photoelectric effect (VPE), constituting at least one detector surface (1502; 1602, 1604) and emitting electrons upon exposure to UV-light; a receiving anode (1506; 1605) for collecting the electrons emitted by the metal substrate; a current sensing means for measuring a current that is generated by the electrons which are emitted by the anode, and a processing unit (2200) for evaluating the current measured by the current sensing means, wherein the processing unit (2200) is adapted to determine a position of the sun relative to the object by determining an incidence angle of solar rays from an amount of the evaluated current.
    • 本发明涉及用至少一个检测器(1500; 1600)来确定太阳相对于物体的位置的太阳传感器,特别是用于航天器的姿态和轨道控制系统中的位置。 每个检测器包括基板(1501; 1601,1603),优选地至少涂覆有呈现矢量光电效应(VPE)的金属,构成至少一个检测器表面(1502; 1602,1604),并且在暴露于 UV光; 用于收集由金属衬底发射的电子的接收阳极(1506; 1605) 用于测量由阳极发射的电子产生的电流的电流感测装置,以及用于评估由电流感测装置测量的电流的处理单元(2200),其中处理单元(2200)适于确定 通过从所估计的电流的量确定太阳射线的入射角来确定太阳相对于物体的位置。