Deformation measurement for satellite antenna by close-range photogrammetry

Shanping Jiang, Linhua Yang, Jie Xu, Jiang Yu
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引用次数: 2

Abstract

The photogrammetric system in vacuum cryogenic environment is designed to measure the sharp deformation of the satellite antenna due to the thermal deformation. The method of the measurement is based on the close-range photogrammetric techniques. This system includes CCD photography assembly, scale bars, support structures and the software. A test was performed by using this system, and the sharp deformation of a reflecting antenna was measured. In the test, a plenty of data was acquired, then the measurement method was proved feasible. According to analysis, we can acquire that the relatively measurement precision by this system can reach to 1:20000.
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近距离摄影测量卫星天线的变形
设计了真空低温环境下的卫星天线摄影测量系统,用于测量卫星天线因热变形引起的急剧变形。测量方法基于近景摄影测量技术。该系统包括CCD摄影组件、比例尺、支撑结构和软件。利用该系统进行了测试,测量了反射天线的急剧变形。在试验中获得了大量的数据,证明了该测量方法的可行性。经分析,该系统的相对测量精度可达1:2000。
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