IMECH-IR  > 环境力学重点实验室(2009-2011)
Fiber Bragg Grating Sensor for Strain Sensing in Low Temperature Superconducting Magnet
Zhang HJ; Wang QL; Wang HS; Song SS; Zhao BZ; Dai YM; Huang GJ(黄国君); Jiang ZH
Conference Name21st International Conference on Magnet Technology (MT-21)
Conference DateOCT 18-23, 2009
Conference PlaceAnhui, PEOPLES R CHINA
AbstractFiber Bragg grating (FBG) sensor for monitoring the electromagnetic strain in a low temperature superconducting (LTS) magnet was studied. Before used to LTS magnet strain sensing, the strain response of the sensor with 1.54-mu m wavelength at liquid helium was experimentally studied. It was found that the wavelength shift showed good linearity with longitudinal applied loads and the strain sensitivity is constant at 4.2 K. And then, the hoop strain measurement of a LTS magnet was carried out on the basis of measured results. Furthermore, the finite element method (FEM) was used to simulate the magnet strain. The difference between the experimental and numerical analysis results is very small.
KeywordFiber Bragg Grating Liquid Helium Temperature Lts Magnet Strain Sensing
Indexed ByCPCI(ISTP)
Document Type会议论文
Corresponding AuthorZhang HJ
Recommended Citation
GB/T 7714
Zhang HJ,Wang QL,Wang HS,et al. Fiber Bragg Grating Sensor for Strain Sensing in Low Temperature Superconducting Magnet[C]IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2010:1798-1801.
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