Fiber Bragg Grating Sensor for Strain Sensing in Low Temperature Superconducting Magnet

被引：10

作者：

Zhang, Hongjie ^{[1
]}

Wang, Qiuliang ^{[2
]}

Wang, Housheng ^{[2
]}

Song, Shousen ^{[2
]}

Zhao, Baozhi ^{[2
]}

Dai, Yinming ^{[2
]}

Huang, Guojun ^{[3
]}

Jiang, Zhonghua ^{[3
]}

机构：

[1] Chinese Acad Sci IEE,CAS, Inst Elect Engn, Key Lab Appl Superconduct, Beijing, Peoples R China

[2] Chinese Acad Sci, IEE, Appl Superconductor Lab, Beijing, Peoples R China

[3] Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2010年 / 20卷 / 03期

关键词：

Fiber Bragg grating; liquid helium temperature; LTS magnet; strain sensing; GAUGES;

D O I：

10.1109/TASC.2010.2042693

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Fiber 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.

引用

页码：1798 / 1801

页数：4

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