Fiber Bragg Gratings for Strain Sensing in High Temperature Superconducting Magnet
Fiber Bragg Gratings for Strain Sensing in High Temperature Superconducting Magnet
复制标题
用于高温超导磁体应变传感的光纤布拉格光栅
DOI：
10.1109/tasc.2007.899078
复制
发表时间：
2007-07
影响因子：
1.8
通讯作者：
中科院分区：
文献类型：
--
作者：
研究了高温超导磁体在77 K和强磁场环境下的应力应变测量方法。在一系列实验的基础上，研究了光纤光栅在低温环境下的传感特性。为了研究光纤光栅在77 K温度下的应变传感特性，采用悬臂梁的原理，将一端固定的铝板作为悬臂梁展开。结果表明，在液氮温度下，FBG仍具有良好的线性应变传感特性。确定了微应变与波长漂移的函数为？77 K时B = 1.23 muez。基于此方程，测量了高温超导磁体在Bi 2223绕线后的环向应变。FBG的测量结果与ANSYS的计算结果相差很小。
Fiber Bragg grating (FBG) for measuring stress and strain in 77 K and high magnetic field environment for a high temperature superconducting (HTS) magnet has been studied. The sensing characteristics of FBG in the cryogenic environment were studied on the basis of a series of experiments. To study the strain sensing behavior of FBG at 77 K, the principle of the cantilever which used a aluminum plate clamped at one end and deployed as a cantilever was applied. The results demonstrated that the FBGs still possess good linear strain sensing property at liquid nitrogen temperature. The function of micro-strain and wavelength shift is determined as ??B = 1.23 muez at 77 K. Based on this equation, the hoop strain of a HTS magnet wounded by Bi2223 was measured. The hoop strain difference between the measured results by FBG and the calculated results by ANSYS is very small.
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影响因子：
2.4
作者：
James, SW;Tatam, RP;Noonan, P
通讯作者：
Noonan, P
影响因子：
2.1
作者：
A. W. Cox;H. Garmestani;W. Markiewicz;I. Dixon
通讯作者：
A. W. Cox;H. Garmestani;W. Markiewicz;I. Dixon
影响因子：
2.1
作者：
E. Deviatkin
通讯作者：
E. Deviatkin
影响因子：
4.6
作者：
Rao, YJ
通讯作者：
Rao, YJ
DOI：
--
发表时间：
2003
期刊：
Chinese Journal of Low Temperature Physics
影响因子：
--
作者：
Q. Wang
通讯作者：
Q. Wang