Fast Response Fiber Optic Temperature Sensors Based on Venturi Tube

被引：0

作者：

Ye, Zhongfei ^{[1
]}

Xie, Kai ^{[1
]}

Duan, Chao ^{[2
]}

Tan, Tao ^{[2
]}

Zhang, Meixin ^{[2
]}

Qu, Naizhang ^{[2
]}

Chai, Quan ^{[2
]}

Tian, Ye ^{[3
,4
]}

Zhang, Jianzhong ^{[2
]}

机构：

[1] State Grid Henan Elect Power Res Inst, Lab Transmiss Line Galloping Prevent Tech, Zhenzhou 450052, Peoples R China

[2] Harbin Engn Univ, Key Lab Infiber Integrated Opt Minist Educ, Minist Educ, Harbin 150001, Peoples R China

[3] Harbin Engn Univ, Fiber Opt Sensing Ctr Excellence, Yantai Res Inst, Yantai 264000, Peoples R China

[4] Harbin Engn Univ, Grad Sch, Yantai 264000, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2023年 / 35卷 / 24期

基金：

美国国家科学基金会;

关键词：

FBG temperature sensor; fast response time; venturi tube; NATURAL-CONVECTION;

D O I：

10.1109/LPT.2023.3326653

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：

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.

引用

页码：1347 / 1350

页数：4

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