A torsional thrust stand for measuring the thrust response time of micro-Newton thrusters
文献类型：期刊论文
| 作者 | Yang C(杨超) ; He JW(贺建武); Duan L(段俐); Kang Q(康琦)
|
| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS A
 ; 11N12
|
| 出版日期 | 2021-04 |
| 卷号 | 36页码:2140015 |
| 关键词 | Gravitational waves micro-Newton thruster thrust measurement thrust response time torsional thrust stand |
| ISSN号 | 0217-751X |
| DOI | 10.1142/S0217751X21400157 |
| 英文摘要 | Drag-free technology functions as the keystone for space-based gravitational wave detection satellites moving along a geodesic path, like the Laser Interferometer Space Antenna (LISA) Pathfinder, to achieve ultra-high microgravity level. Several prerequisites for micro-thrusters operated under the drag-free technique include constantly adjustable thrust, high resolution, low noise and fast response time. Accordingly, a torsional thrust measurement system was methodically devised to measure the thrust response time of such micro-thrusters on the ground. The characteristics of the dynamic thrust change with time are inverted by the angular displacement of the torsional pendulum, established by the dynamic equation of the same, thus, measuring the rise/fall time of the thrust applied to the torsional pendulum. Calibration of the torsional pendulum thrust measurement system is carried out by the standard electrostatic force generated by the electrostatic comb-drive or microelectromechanical actuator, facilitating the suitable identification of the pendulum parameters. Afterwards, the electrostatic and electromagnetic forces generated by the actuator are applied to validate the measurable thrust response time of the torsional thrust stand. The experimental results show that the above-mentioned thrust stand can effectively measure the thrust response time up to 10 ms for a thrust step in 10 s of micronewtons, which qualifies as the thrust response time required by micro-thrusters for space-based gravitational wave detection. |
| 学科主题 | Physics, Nuclear ; Physics, Particles & Fields |
| 分类号 | Q4 |
| 语种 | 英语 |
| WOS记录号 | WOS:000651032500024 |
| 资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences [XDB23030300, XDA1502070901, XDA1502070503, XDA1502110105] |
| 其他责任者 | Duan, L ; Kang, Q (corresponding author), Chinese Acad Sci, Ctr Gravitat Wave Expt, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/90242]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 作者单位 | Chinese Acad Sci, Ctr Gravitat Wave Expt, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China; Univ Chinese Acad Sci UCAS, Taiji Lab Gravitat Wave Universe Beijing Hangzhou, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang C,He JW,Duan L,et al. A torsional thrust stand for measuring the thrust response time of micro-Newton thrusters[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 11N12,2021,36:2140015. |
| APA | 杨超,贺建武,段俐,&康琦.(2021).A torsional thrust stand for measuring the thrust response time of micro-Newton thrusters.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,36,2140015. |
| MLA | 杨超,et al."A torsional thrust stand for measuring the thrust response time of micro-Newton thrusters".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 36(2021):2140015. |
入库方式： OAI收割
来源：力学研究所
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