Transversely loaded fibre Bragg grating for pressure measurements
Transversely loaded fibre Bragg grating for pressure measurements
复制标题
用于压力测量的横向加载光纤布拉格光栅
DOI：
10.1117/12.738391
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Correia R
中科院分区：
文献类型：
--
作者：
Correia R
提出并论证了一种基于半长横向加载的光纤布拉格光栅（FBG）压力传感器。当横向载荷施加到FBG长度的一半时，在反射谱中产生第二布拉格峰，其与初始布拉格峰分离。随着负载的增加，新的峰显示出波长的红移。讨论了一种新的数据分析技术，它提高了最小可检测压力。获得了5.73 × 10 ~（-3）± 5.23 × 10 ~（-5）MPa ~（-1）的归一化压力灵敏度。该技术提供了使用单个FBG传感器元件独立测量压力和温度的机会。
A fibre Bragg grating (FBG) pressure sensor, based upon the transverse loading of half its length, is proposed and demonstrated. When a transverse load is applied to half of the length of an FBG, a second Bragg peak is generated in the reflection spectrum, which separates from the initial Bragg peak. The new peak exhibits a red shift in wavelength as the load is increased. A new data analysis technique, which improves the minimum detectable pressure is discussed. A normalised pressure sensitivity of 5.73x10-3± 5.23x10-5MPa-1was obtained. The technique offers the opportunity to measure independently pressure and temperature using a single FBG sensor element.
用于气压测量的双光纤布拉格光栅传感器
影响因子：
2.4
作者：
R. Maier;J. Barton;J. Jones;S. Mcculloch;G. Burnell
通讯作者：
G. Burnell