A dynamic strain-based quench-detection method in an LTS sextupole magnet during excitation and quench
文献类型：期刊论文
| 作者 | Gao,Peifeng3; Guan,Mingzhi1,2,3 ; Xin,Canjie2
|
| 刊名 | Superconductor Science and Technology
 |
| 出版日期 | 2020-09-30 |
| 卷号 | 33期号:11页码:8 |
| 关键词 | dynamic strain measurements LTS sextupole magnet quench-detection, spectrum analysis of strain signals |
| ISSN号 | 0953-2048 |
| DOI | 10.1088/1361-6668/abb63d |
| 通讯作者 | Gao,Peifeng() |
| 英文摘要 | AbstractThe dynamic strain characteristics and responses of a low-temperature superconducting (LTS) magnet during excitation and a quench are investigated in the present work. For the strain measurements, strain gauges in the form of a half-bridge circuit comprising cryogenic strain gauges and their dummy resistances are embedded directly within the superconducting magnet structure. A wireless high-speed data acquisition system with a resolution of 1 ms is also used to obtain the strain history of the LTS magnet during operation. The dynamic strain induced by thermal or mechanical disturbances is detected promptly and compared with the transport current and temperature signals recorded during a quench. This indicates that the dynamic strain measured in the LTS magnet can capture a quench feature in a timely manner. For a better understanding of the dynamic strain histories in the magnet, the dynamic strain signals are subjected to spectral analysis during the excitation and pre- and post-quench processes. It is shown originally that several spectral peaks on strain measured are always observed at the onset of a quench. Thus, the dynamic strain characteristics and responses provide a evaluation means of superconducting magnet. |
| WOS关键词 | SUPERCONDUCTING MAGNET ; ACOUSTIC-EMISSION ; STRESS ; TEMPERATURE ; PERFORMANCE ; DEGRADATION ; WIRES ; COIL |
| 资助项目 | Youth Innovation Promotion Association CAS[2019404] ; CAS 'Light of West China' Program (2018) ; National Natural Science Foundation of China[11902129] ; China Postdoctoral Science Foundation[2019T120963] ; China Postdoctoral Science Foundation[2018M633604] ; Fundamental Research Funds for the Central Universities[lzujbky-2020-pd03] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | IOP:0953-2048-33-11-ABB63D |
| 出版者 | IOP Publishing |
| 资助机构 | Youth Innovation Promotion Association CAS ; CAS 'Light of West China' Program (2018) ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://119.78.100.186/handle/113462/139486]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Gao,Peifeng |
| 作者单位 | 1.School of Electronic Information and Electrical Engineering, Huizhou University, Huizhou 516000, People’s Republic of China 2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China 3.Key Laboratory of Mechanics on Western Disaster and Environment, Ministry of Education, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Gao,Peifeng,Guan,Mingzhi,Xin,Canjie. A dynamic strain-based quench-detection method in an LTS sextupole magnet during excitation and quench[J]. Superconductor Science and Technology,2020,33(11):8. |
| APA | Gao,Peifeng,Guan,Mingzhi,&Xin,Canjie.(2020).A dynamic strain-based quench-detection method in an LTS sextupole magnet during excitation and quench.Superconductor Science and Technology,33(11),8. |
| MLA | Gao,Peifeng,et al."A dynamic strain-based quench-detection method in an LTS sextupole magnet during excitation and quench".Superconductor Science and Technology 33.11(2020):8. |
入库方式： OAI收割
来源：近代物理研究所
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