航天器环境工程2016，Vol.33Issue(2)：199-205,7.DOI:10.3969/j.issn.1673-1379.2016.02.016
石英挠性加速度计测量航天器微振动的方法
Measurement of spacecraft micro-vibration based on quartz-flexibility-accelerometer
摘要
Abstract
The quartz-flexibility-accelerometer of high precision can be used to measure the low frequency micro-vibration of spacecraft on-orbit directly, and the micro-angle vibration indirectly. The paper makes an uncertainty analysis when the quartz-flexibility-accelerometer is applied to measure the micro-vibration acceleration, the angular acceleration, the angular velocity and the angular displacement, the calculation method is proposed and various influencing factors are analyzed for the combined measurement uncertainty based on the measurement principle. An eight accelerometer measurement point layout is designed for the entire satellite test in the rigid planar test environment for the satellite sensitive payload. Entire satellite measured data show that the quartz-flexibility-accelerometer can accurately measure spacecraft’s low frequency micro-vibration, the direct and indirect measurement results meet the need of applications, the linear acceleration measurement resolution ratio is 5µg, and the angular displacement measurement resolution ratio is 0.015″.关键词
石英挠性加速度计/航天器微振动/分辨率/测量不确定度Key words
quartz-flexibility-accelerometer/spacecraft micro-vibration/resolution/measurement uncertainty分类
航空航天引用本文复制引用
赵伟,高青松,王海明,景春妍,孙迎萍..石英挠性加速度计测量航天器微振动的方法[J].航天器环境工程,2016,33(2):199-205,7.基金项目
“十二五”总装预先研究课题“大型卫星地面环境试验技术研究” （）
