应用于内编队相对测量的一种新型光能探测阵列系统
应用于内编队相对测量的一种新型光能探测阵列系统
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DOI：
10.1007/s10509-016-2900-3
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发表时间：
2016
影响因子：
1.9
通讯作者：
Zhang Yulin
中科院分区：
文献类型：
--
作者：
Zhendong Hou;Zhaokui Wang;Zhang Yulin
内编队飞行系统（Inner-Formation Flying System，IFFS）是一种利用球形质量块在大空腔内自由下落的空间重力探测系统，首次应用于地球重力场的恢复。对于IFFS，它是检验质量块与其周围空腔的相对位置，该相对位置被反馈到推进器中以用于跟踪控制，甚至作为检测重力的数据的一部分。利用小卫星平台对高要求的技术进行论证和验证是探测使命前的一个非常明智的选择，提出了一种低成本、适应性强的光功率探测阵列系统（OPDAS）来测量相对位置。此外，它的大动态范围可以降低对卫星平台和释放机构的要求，这也是小卫星应用的一个吸引力。首先给出了OPDAS的概念，然后给出了检测质量块的定位算法。建立了测量光束辐射压力的数学模型，仿真了测量光束辐射压力对质量块的干扰。建立了实验系统，对样机的性能进行了测试，初步结果表明，样机在几厘米的动态范围内可以达到小于0.4mm的精度。
The Inner-formation flying system (IFFS) is con- ceived to feature a spherical proof mass falling freely within a large cavity for space gravity detection, of which first ap- plication focuses on the Earth’s gravity field recovery. For the IFFS, it is the relative position of the proof mass to its surrounding cavity that is feedback into thrusters for track- ing control, even as part of data to detect gravity. Since the demonstration and verification of demanding technologies using small satellite platforms is a very sensible choice prior to detection mission, an optical power detection array sys- tem (OPDAS) is proposed to measure the relative position with advantages of low cost and high adaptability. Besides that, its large dynamic range can reduce the requirement for satellite platform and releasing mechanism, which is also an attracting trait for small satellite application. The concept of the OPDAS is firstly presented, followed by the algorithm to position the proof mass. Then the radiation pressure caused by the measuring beam is modeled, and its disturbance on the proof mass is simulated. The experimental system to test the performance of a prototype of the OPDAS is established, and the preliminary results show that a precision of less than 0.4 mm across a dynamic range of several centimeters can be reached by the prototype of the OPDAS.