一种新型空间微重力测量仪的研制  

Development of a New Space Microgravity Instrument

作　　者：李增科[1] 李云鹏[1] 雷军刚[1] 席东学 宗朝[1] LI Zengke;LI Yunpeng;LEI Jungang;XI Dongxue;ZONG Chao(Lanzhou Institute of Physics,Lanzhou 730000,China)

机构地区：[1]兰州空间技术物理研究所,甘肃兰州730000

出　　处：《自动化仪表》2021年第11期39-43,共5页Process Automation Instrumentation

摘　　要：空间微重力测量仪的研制可为微重力科学、空间生命科学空间实验研究领域提供科学的测量保障。通过在轨实时检测微重力环境水平,对航天器中重要事件进行频响监测,为微重力科学实验外界影响分析提供科学数据。利用地面重力倾角法测量方法获得输入加速度与输出测量电压数据,采用曲线拟合获得测量曲线,再通过标定方法进行对拟合参数修正。经验证,空间实验室在轨运行两年可知,测量仪功能正常,系统稳定。在未来发展中,新型微重力测量仪不仅注重新领域工程化应用,同时可为相关专业领域提供强有力的支持。The development of space microgravity instrument can provide scientific measurement guarantee for the field of microgravity science and space life science.Through the real-time detection of microgravity environment level in orbit,scientific data can be provided for the frequency response monitoring of important events in spacecraft and the external influence analysis of microgravity scientific experiments.The input acceleration and output measured voltage were obtained by ground gravity dip angle method,the measured curve was obtained by curve fitting,and the fitting parameters were corrected by calibration method.It has been proved that the measurement instrument functions are normal and the system is stable after two years of orbit operation in the space laboratory.In the future development,the new microgravity measuring instrument not only focuses on the engineering application of new fields,but also provids strong support in related professional fields.

关 键 词：微重力 RS-422 1394总线 数字信号处理器 现场可编程门阵列 余裕量 模块化 动静态标定方法 

分 类 号：TH-39[机械工程]