Strain Responses of Superconducting Magnets Based on Embedded Polymer-FBG and Cryogenic Resistance Strain Gauge Measurements

doi:10.1109/TASC.2018.2867783

	Strain Responses of Superconducting Magnets Based on Embedded Polymer-FBG and Cryogenic Resistance Strain Gauge Measurements
	Hu, Qiang1,2 ; Wang, Xingzhe 2; Guan, Mingzhi1 ; Wu, Beimin1
刊名	IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
	2019-01
卷号	29 页码:8400207
关键词	Cryogenic resistance strain gauge (CRSG) excitation and quench fiber Bragg grating (FBG) sensor strain response superconducting magnet
ISSN号	1051-8223
DOI	10.1109/TASC.2018.2867783
英文摘要	Large Lorentz forces commonly arise from the intense field and high current in superconducting coils, which can induce maximum stress up to several hundred megapascal (MPa) in magnets. It is a big challenge in compact high-field magnets with small mechanical margin during energization. In this paper, the mechanical characteristics and strain responses of two superconducting magnets with different configurations and low-temperature superconducting (US) materials are investigated experimentally during their excitation process and quench events. To explore the strain behavior in the magnets, several cryogenic resistance strain gauges (CRSGs) and homemade polymer-fiber Bragg grating (FBG) sensors are used for measurements. The strain responses during excitation and quench training tests of the two LTS magnets are recorded to show that both measurement techniques have good precision and repeatability. Compared to the CRSG with complex compensation bridges, the polymer-FBG sensors exhibit more advantages like smaller size, noncircuit compensation, and insensitivity to electromagnetic interferences, and most important of all is that the polymer-FBC can be embedded in coils with good survival to measure the internal strain in the magnets. Based on FEM, we further calculated the electromagnetic field and deformation of the two magnets, and the predicted results show good agreement with the experimental data.
资助项目	China Postdoctoral Science Foundation[2015T81071]
WOS关键词	BRAGG GRATING SENSORS ; COIL ; TEMPERATURE ; EXCITATION
WOS研究方向	Engineering ; Physics
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000446125200001
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/64376]
专题	中国科学院近代物理研究所
通讯作者	Wang, Xingzhe
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, Key Lab Mech Western Disaster & Environm, Minist Educ China MoE, Coll Civil Engn & Mech, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Hu, Qiang,Wang, Xingzhe,Guan, Mingzhi,et al. Strain Responses of Superconducting Magnets Based on Embedded Polymer-FBG and Cryogenic Resistance Strain Gauge Measurements[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2019,29:8400207.
APA	Hu, Qiang,Wang, Xingzhe,Guan, Mingzhi,&Wu, Beimin.(2019).Strain Responses of Superconducting Magnets Based on Embedded Polymer-FBG and Cryogenic Resistance Strain Gauge Measurements.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,29,8400207.
MLA	Hu, Qiang,et al."Strain Responses of Superconducting Magnets Based on Embedded Polymer-FBG and Cryogenic Resistance Strain Gauge Measurements".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 29(2019):8400207.