Multi-channel Thermal Deformation Interference Measurement of the Telescope Supporting Frame in Spaceborne Gravitational Wave Detection

doi:10.1007/s12217-022-09980-1

	Multi-channel Thermal Deformation Interference Measurement of the Telescope Supporting Frame in Spaceborne Gravitational Wave Detection
	Shen J(沈嘉); Zhao, Ya 5; Liu HS(刘河山); Niu Y(牛宇); Gao RH(高瑞弘); Guo, Tong 3; Zhao, Donglin 2; Luo ZR(罗子人)
刊名	MICROGRAVITY SCIENCE AND TECHNOLOGY ; 4
	2022-07
卷号	34 页码:59
关键词	Coefficient of thermal expansion (CTE) Interferometry Multi-channel Carbon/silicon carbide(C/SiC) Telescope
ISSN号	0938-0108
DOI	10.1007/s12217-022-09980-1
英文摘要	The Taiji program and the LISA (Laser Interferometer Space Antenna) program are proposed to realize the gravitational wave detection within the frequency band of 0.1 mHz-1 Hz through space laser interferometry. As a key optical component of the interferometric system, the telescope are required the dimensional stability better than 1 pm/root Hz and its deformation between the primary and the secondary mirrors needs to be small enough to reduce wavefront distortion. Therefore, in the case of satisfying the structural strength, the telescope supporting structural material also needs to meet the performance of the low coefficient of thermal expansion (CTE) and high thermal conductivity. In this paper, we fabricate a telescope supporting frame using the carbon/silicon carbide (C/SiC) composite, and build a high-precision and multi-channel thermal deformation interferometry system. Using this system, the uniform thermal expansion experiment and the temperature gradient thermal expansion experiment are carried out on the telescope supporting frame. The results show that the axial CTE and the transverse CTE of the C/SiC composite is about -8.3 x 10(-7)/K and 3.3 x 10(-5)/K, respectively, which indicate that the design and process of the C/SiC composite used may not be mature and need to be further studied. The high-precision multi-channel thermal deformation measurement interferometry system designed in this paper can be used for the subsequent thermal performance measurement of the telescope prototype.
学科主题	Engineering, Aerospace ; Thermodynamics ; Mechanics
分类号	二类
语种	英语
WOS记录号	WOS:000824623000001
资助机构	National Key R&D Program of China [2020YFC2200104] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA1502110102]
其他责任者	Niu, Y (corresponding author), Chinese Acad Sci, Inst Mech, Ctr Gravitat Wave Expt, Natl Micrograv Lab, Beijing 100190, Peoples R China. ; Niu, Y (corresponding author), Univ Chinese Acad Sci, Taiji Lab Gravitat Wave Universe Beijing Hangzhou, Beijing 100049, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90192]
专题	力学研究所_国家微重力实验室
作者单位	1.Northwestern Polytech Univ, Xian 710072, Peoples R China 2.Chinese Acad Sci, In11at Acad Microsatellites, Shanghai 201304, Peoples R China 3.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 4.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 6.Univ Chinese Acad Sci, Taiji Lab Gravitat Wave Universe Beijing Hangzhou, Beijing 100049, Peoples R China 7.Chinese Acad Sci, Inst Mech, Ctr Gravitat Wave Expt, Natl Micrograv Lab, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Shen J,Zhao, Ya,Liu HS,et al. Multi-channel Thermal Deformation Interference Measurement of the Telescope Supporting Frame in Spaceborne Gravitational Wave Detection[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY, 4,2022,34:59.
APA	沈嘉.,Zhao, Ya.,刘河山.,牛宇.,高瑞弘.,...&罗子人.(2022).Multi-channel Thermal Deformation Interference Measurement of the Telescope Supporting Frame in Spaceborne Gravitational Wave Detection.MICROGRAVITY SCIENCE AND TECHNOLOGY,34,59.
MLA	沈嘉,et al."Multi-channel Thermal Deformation Interference Measurement of the Telescope Supporting Frame in Spaceborne Gravitational Wave Detection".MICROGRAVITY SCIENCE AND TECHNOLOGY 34(2022):59.