关键词: 质量测量, 在轨测量, 地面校准方法, 水平二维微重力, 不确定度分析

Abstract: In order to verify the index performance and measurement accuracy of the On-orbit Measuring Instrument of Quality in the space microgravity environment,this paper describes its ground calibration method,establishes a ground calibration system,and implements a ground calibration device by engineering.By simulating the horizontal two-dimensional microgravity environment,the measurement accuracy is verified.The experimental results show that the measurement errors of the calibration technique and calibration system are within the range of the qualified indicators.The above model can be applied to the ground calibration of similar quality measuring instrument in a special environment,and has strong popularization.At the same time,it has a better engineering application value and various prospects.

Key words: Mass measurement, On-orbit measurement, Ground calibration method, Horizontal two-dimensional microgravity, Uncertainty analysis