Fast Response Fiber Optic Temperature Sensors Based on Venturi Tube
Fast Response Fiber Optic Temperature Sensors Based on Venturi Tube
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DOI：
10.1109/lpt.2023.3326653
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发表时间：
2023-12
影响因子：
2.6
通讯作者：
Zhongfei Ye;Kai Xie;C. Duan;Tao Tan;Meixin Zhang;Naizhang Qu;Quan Chai;Ye Tian;Jianzhong Zhang
中科院分区：
文献类型：
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作者：
Zhongfei Ye;Kai Xie;C. Duan;Tao Tan;Meixin Zhang;Naizhang Qu;Quan Chai;Ye Tian;Jianzhong Zhang
为了提高光纤温度传感器的响应时间，提出了一种基于文丘里结构的快速响应温度传感器。该传感器利用文丘里结构来提高流体的流动速度，从而增加导热系数，缩短温度响应时间。对基于光纤Bragg光栅(VFBGT)的文丘里温度传感器的仿真分析表明，在不同流速下，与裸FBG相比，VFBGT具有更短的响应时间。对VFBGT的结构进行了优化，使其响应时间最短。实验结果表明，在流速为1m/S的情况下，该传感器可以将裸FBG传感器的温度响应时间从420ms缩短到210ms，为高精度系统的动态温度测量和实时快速温度补偿提供了一种新的途径。
In order to improve the response time of fiber optical temperature sensors, a fast response temperature sensor based on the Venturi structure is proposed. This sensor takes advantage of the Venturi structure to increase fluid flow velocity, thereby increasing thermal conductivity and reducing the temperature response time. Simulation analysis of the Venturi temperature sensor based on fiber Bragg grating (VFBGT) showed that it has a shorter response time compared to a bare FBG at different flow velocities. The structure of the VFBGT was optimized to achieve the minimum response time. Experimental results confirmed that the VFBGT can reduce the temperature response time of the bare FBG sensor from 420ms to 210ms at a flow velocity of 1m/s, providing a new approach for dynamic temperature measurement and real-time fast temperature compensation in high-precision systems.