仪器仪表学报
儀器儀錶學報
의기의표학보
CHINESE JOURNAL OF SCIENTIFIC INSTRUMENT
2014年
z2期
205-209
,共5页
星载相机%调焦系统%光电编码器%性能测试
星載相機%調焦繫統%光電編碼器%性能測試
성재상궤%조초계통%광전편마기%성능측시
satellite mounting camera%focusing system%optical encoder%performance testing
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。
為提高星載相機調焦繫統中光電編碼器的穩定性和可靠性,有效檢測光電編碼器的性能指標,設計瞭一種基于航天級絕對式光電編碼器的地麵調試繫統。首先,介紹瞭星載光電編碼器地檢繫統的工作原理及繫統組成;然後詳細介紹瞭繫統中各箇功能模塊的硬件組成及相關軟件繫統設計;最後,採用本繫統對某航天級絕對式光電編碼器進行性能測試。實驗結果錶明,編碼器最大誤差值為+5.4″,最小誤差值為-4.7″,均方根誤差為±2.65″,滿足編碼器精度要求。該繫統可同時處理多檯編碼器信號數據,併實現數據傳輸通信和顯示功能,實時性好,可視性彊。
위제고성재상궤조초계통중광전편마기적은정성화가고성,유효검측광전편마기적성능지표,설계료일충기우항천급절대식광전편마기적지면조시계통。수선,개소료성재광전편마기지검계통적공작원리급계통조성;연후상세개소료계통중각개공능모괴적경건조성급상관연건계통설계;최후,채용본계통대모항천급절대식광전편마기진행성능측시。실험결과표명,편마기최대오차치위+5.4″,최소오차치위-4.7″,균방근오차위±2.65″,만족편마기정도요구。해계통가동시처리다태편마기신호수거,병실현수거전수통신화현시공능,실시성호,가시성강。
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.