Drop tower tests of Taiji-1 inertial sensor substitute | |
Min, Jian1; Wang, Zuo-Lei1; Li, Yun-Peng1; Tao, Wen-Ze1; Li, Cun-Hui1; Lei, Jun-Gang1; Xi, Dong-Xue1; Fan, Da2; Wang JB(王俊表)3 | |
发表期刊 | NPJ MICROGRAVITY |
2021-07-07 | |
卷号 | 7期号:1页码:10 |
ISSN | 2373-8065 |
摘要 | Taiji-1, which is the first technical verification satellite of China's Space Gravitational Wave Detection Program, was successfully launched on August 31, 2019. The mission aimed to investigate the key technologies used in space gravitational wave detection. The inertial sensor, which was one of the main payloads, measured the residual acceleration of the satellite, and verified the drag-free control technology. Its performance was crucial to the success of the Taiji-1 mission. To ensure its performance in orbit, the inertial sensor was fully evaluated prior to launch. Owing to the gravitational acceleration on the ground, it is impossible to verify all the properties of the inertial sensor in a routine laboratory. A feasible method to conduct such tests is to use a drop tower. To guarantee the safety of the inertial sensor, a substitute was used with similar structure and circuit design. A total of 20 falls in three groups were completed, a set of research methods was established, and the importance of conducting simulations before the drop tests was verified. For the first time, the switch of different circuit gains in a drop tower test has been achieved and the National Microgravity Laboratory of China (NMLC) drop tower's residual accelerations in three dimensions were measured. The results demonstrated that the microgravity level of the drop tower can reach about 58 mu g(0) in the fall direction and 13 mu g(0) along the horizontal axes. |
DOI | 10.1038/s41526-021-00154-8 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000671338200001 |
WOS研究方向 | Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences |
资助项目 | Pre-research Project on Civil Aerospace Technologies of CNSA[A0301] |
项目资助者 | Pre-research Project on Civil Aerospace Technologies of CNSA |
论文分区 | 二类/Q1 |
力学所作者排名 | 3+ |
RpAuthor | Xi, Dong-Xue |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/87050 |
专题 | 微重力重点实验室 |
作者单位 | 1.Lanzhou Inst Space Technol & Phys, Natl Key Lab Sci & Technol Vacuum Technol & Phys, Lanzhou, Peoples R China; 2.Qian Xuesen Lab Space Technol, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Min, Jian,Wang, Zuo-Lei,Li, Yun-Peng,et al. Drop tower tests of Taiji-1 inertial sensor substitute[J]. NPJ MICROGRAVITY,2021,7,1,:10. |
APA | Min, Jian.,Wang, Zuo-Lei.,Li, Yun-Peng.,Tao, Wen-Ze.,Li, Cun-Hui.,...&Wang JB.(2021).Drop tower tests of Taiji-1 inertial sensor substitute.NPJ MICROGRAVITY,7(1),10. |
MLA | Min, Jian,et al."Drop tower tests of Taiji-1 inertial sensor substitute".NPJ MICROGRAVITY 7.1(2021):10. |
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