中国空间科学技术

中国空间科学技术

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1990年中国返回式卫星的微重力水平监测

薛大同,曹慎诚,魏向荣,陈学康,程玉峰,张韶红   

  1. 兰州物理研究所 ,兰州物理研究所 ,兰州物理研究所 ,兰州物理研究所 ,兰州物理研究所 ,兰州物理研究所
  • 发布日期:1992-12-25

MEASUREMENT OF THE MICROGRAVITY LEVELS IN 1990 CHINESE RETURNABLE SATELLITE

Xue Datong Cao shencheng Wei Xiangrong Chen Xuekang Cheng Yufeng Zhang Shaohong (Lanzhou Institute of Physics)   

  • Online:1992-12-25

被引次数

1

摘要： 叙述了1990年中国返回式卫星采用的微重力测量系统概况、微重力测量数据的处理方法、微重力测量结果与分折。指出:这是国内首次空间微重力水平监测;研制的JS05-1A 微重力测量仪动态精度优于4μg,响应时间6ms,达到了国际同类仪器的先进水平;该仪器为指导优化空间晶体生长的微重力环境及了解卫星工作状况提供了有力手段。通过对该卫星微重力水平监测所获得的73505对数据进行分折,发现有效载荷动作是影响卫星微重力水平的主要因素,为10~(-4)g 量级;有效载荷不动作时,除1.23%的时间存在10~(-4)g量级不明干扰外,有97.6%的时间微重力的绝对值小于4×10~(-5)g,仅O.3%的时间在10~(-4)g 量级。

关键词: 可回收卫星, 微重力水平测量, 数据处理, 中国

Abstract: The constitution,function and installation of the microgravity measurement system used in the 1990 returnable satellite and the method of processing the microgravity data were introduced in this paper.It was pointed out that 4μg dynamic resolution and 6ms response time of the JS05-1A accelerometer have reached advanced world level of the same intru- ments. The application of our microgravity measurement system provided an effective means for understanding and improving the working condition of satellite.By analysising the data it was found that the working condition of the instruments was the main factor that affected the microgravity level in satellite,which is about 10~(-4)g.When major instruments turned off,the absolute value of 97.6% microgravity data was less than 4×10~(-5)g,0.3% of them was about 10~(-4)g and 1.23% of them was affected by the unknown disturbance which was over 10~(-4)g.

Key words: Recoverable satellite, Microgravity levels measurement, Data processing, China