| A torsional thrust stand for measuring the thrust response time of micro-Newton thrusters | |
Yang C(杨超) ; He JW(贺建武); Duan L(段俐); Kang Q(康琦)
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| Source Publication | INTERNATIONAL JOURNAL OF MODERN PHYSICS A
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| 2021-04 | |
| Volume | 36Issue:11N12Pages:2140015 |
| ISSN | 0217-751X |
| Abstract | 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. |
| Keyword | Gravitational waves micro-Newton thruster thrust measurement thrust response time torsional thrust stand |
| Subject Area | Physics, Nuclear ; Physics, Particles & Fields |
| DOI | 10.1142/S0217751X21400157 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000651032500024 |
| Funding Organization | Strategic Priority Research Program of Chinese Academy of Sciences [XDB23030300, XDA1502070901, XDA1502070503, XDA1502110105] |
| Classification | Q4 |
| Ranking | 1 |
| Contributor | Duan, L ; Kang, Q (corresponding author), Chinese Acad Sci, Ctr Gravitat Wave Expt, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90242 |
| Collection | 微重力重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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,2021,36,11N12,:2140015.Rp_Au:Duan, L, Kang, Q (corresponding author), Chinese Acad Sci, Ctr Gravitat Wave Expt, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China. |
| 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(11N12),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 36.11N12(2021):2140015. |
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| X21400157.pdf（2084KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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