Method for Enhancing and Controlling Temperature Sensitivity of Fiber Bragg Grating Sensor Based on Two Bimetallic Strips
Method for Enhancing and Controlling Temperature Sensitivity of Fiber Bragg Grating Sensor Based on Two Bimetallic Strips
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DOI：
10.1109/jphot.2012.2202102
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发表时间：
2012-06-01
影响因子：
2.4
通讯作者：
Tiwari, U. K.
中科院分区：
文献类型：
--
作者：
Reddy, Parne Saidi;Prasad, R. L. N. Sai;Tiwari, U. K.
提出了一种基于微带结构的光纤光栅温度传感器结构。两种不同类型的传感器头已被设计用于此实施方案。第一个传感头由一个光纤光栅组成，光纤光栅固定在一侧的陶瓷块和另一侧的由铝和铜制成的板条之间。第二个传感器头由一个固定在两个光栅条之间的FBG组成。理论和实验研究进行了这些建议的传感器头的温度灵敏度增加约6倍以上的裸FBG传感器。此外，所提出的传感器具有良好的线性度和稳定性。
This paper presents a novel structure based on bimetallic strips for enhancing temperature sensitivity of fiber Bragg grating (FBG) sensors. Two different types of sensor heads have been designed for this implementation. The first sensor head consists of an FBG that is fixed between ceramic block on one side and a bimetallic strip made up of aluminum and copper on the other. The second sensor head consists of an FBG that is fixed between two bimetallic strips. Theoretical and experimental studies carried out on these proposed sensor heads resulted in an increase in temperature sensitivity of about six times greater than that of bare FBG sensor. Further, the proposed sensors have shown good linearity and stability.