【摘要】 为提高星载相机调焦系统中光电编码器的稳定性和可靠性,有效检测光电编码器的性能指标,设计了一种基于航天级绝对式光电编码器的地面调试系统。首先,介绍了星载光电编码器地检系统的工作原理及系统组成;然后详细介绍了系统中各个功能模块的硬件组成及相关软件系统设计;最后,采用本系统对某航天级绝对式光电编码器进行性能测试。实验结果表明,编码器最大误差值为+5.4″,最小误差值为-4.7″,均方根误差为±2.65″,满足编码器精度要求。该系统可同时处理多台编码器信号数据,并实现数据传输通信和显示功能,实时性好,可视性强。更多还原

【Abstract】 In order to improve stability and reliability of optical encoder in the satellite mounting camera focusing system and effectively detect performance index ofoptical encoder, the ground-level debugging system based on aerospace absolute optical encoder.is designed. Firstly, the working principle and components of satellite mounting optical encoder debugging systemare proposed.Then,the hardware system designand the software system design for the various functional modules in system are introduced in detail.Finally, the aerospaceabsolute optical encoder is testing performance in using this system. Theresults show that the maximum error of the encoder is +5.4 ",the minimum error value is-4.7", the error of root-mean-square is ± 2.65 ".They meet the accuracy requirements of the encoder. The system can handle multiple encoder signals, data transmission and display. It is real-time and high visibility.更多还原