Torsion Pendulum Apparatus for Ground Testing of Space Inertial Sensor

doi:10.3390/s24237816

IMECH-IR > 微重力重点实验室

	Torsion Pendulum Apparatus for Ground Testing of Space Inertial Sensor
	Wang SX(王少鑫)1,2; Wang, Zuolei 3; Liu DX(刘东旭)1,2,4 ; Dong, Peng 2,5; Min, Jian 3; Luo ZR(罗子人)1,2,5 ; Qi KQ(齐克奇)1,2; Lei, Jungang 3
通讯作者	Qi, Keqi([email protected]) ; Lei, Jungang([email protected])
发表期刊	SENSORS
	2024-12-01
卷号	24 期号:23 页码:13
摘要	The precise movement of the test mass along a geodesic is crucial for gravitational wave detection in space. To maintain this motion, the core payload-inertial sensor incorporates multiple functional units designed to mitigate various sources of stray force noise affecting the test mass. Understanding the limits of these noise sources is essential for enhancing the inertial sensor system design. Additionally, thorough ground-based verification of these functional units is necessary to ensure their reliability for space missions. To address these challenges, we developed a low-frequency torsion pendulum apparatus that utilizes a commercial autocollimator as the optical readout element for testing this type of space inertial sensor. This paper provides a comprehensive overview of the apparatus's operating principle, structural characteristics, and the results of laboratory tests of its background noise. Experimental data demonstrate that the torsion pendulum achieves a sensitivity of 1 x 10-11 Nm/Hz1/2 within the measurement band from 1 mHz to 0.1 Hz, confirming its suitability for various inertial sensor tests. Furthermore, the insights gained from constructing the torsion pendulum will inform future system upgrades.
关键词	torsion pendulum inertial sensor test mass sensitivity
DOI	10.3390/s24237816
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001377902800001
关键词[WOS]	BALANCE
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
资助项目	National Key R&D Program of China ; CAS Key Laboratory of Microgravity[NML202302] ; [2020YFC2200104]
项目资助者	National Key R&D Program of China ; CAS Key Laboratory of Microgravity
论文分区	二类
力学所作者排名	1
RpAuthor	Qi, Keqi ; Lei, Jungang
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/97968
专题	微重力重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Ctr Gravitat Wave Expt, Natl Micrograv Lab, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci UCAS, Taiji Lab Gravitat Wave Universe Beijing Hangzhou, Beijing 100049, Peoples R China; 3.Lanzhou Inst Phys, Space Environm Load Engn Ctr, Lanzhou 730000, Peoples R China; 4.Univ Sci & Technol China, Sch Engn Sci, Dept Modern Mech, Hefei 230026, Peoples R China; 5.Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China
推荐引用方式 GB/T 7714	Wang SX,Wang, Zuolei,Liu DX,et al. Torsion Pendulum Apparatus for Ground Testing of Space Inertial Sensor[J]. SENSORS,2024,24,23,:13.Rp_Au:Qi, Keqi, Lei, Jungang
APA	王少鑫.,Wang, Zuolei.,刘东旭.,Dong, Peng.,Min, Jian.,...&Lei, Jungang.(2024).Torsion Pendulum Apparatus for Ground Testing of Space Inertial Sensor.SENSORS,24(23),13.
MLA	王少鑫,et al."Torsion Pendulum Apparatus for Ground Testing of Space Inertial Sensor".SENSORS 24.23(2024):13.