A grapefruit microstructure fiber temperature sensor coated with liquid crystal based on waist-enlarged taper  

作　　者：WANG Feng LI Jiaxuan ZHANG Rongjing FU Xinghu 

机构地区：[1]College of Mechanical and Electrical Engineering,Hebei Normal University of Science&Technology,Qinhuangdao 066004,China [2]School of Information Science and Engineering,Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province,Yanshan University,Qinhuangdao 066004,China

出　　处：《Optoelectronics Letters》2024年第3期142-146,共5页光电子快报（英文版）

基　　金：supported by the Science and Technology Project of Hebei Education Department(No.ZD2022108);the Natural Science Foundation of Hebei Province(No.F2021203102);the Post-graduate’s Innovation Fund Project of Hebei Province(No.CXZZSS2022118)。

摘　　要：In this paper, a grapefruit microstructure fiber(GMF) temperature sensor coated with liquid crystal(LC) based on waist-enlarged taper is proposed and fabricated, and its temperature sensing characteristics are analyzed. The waist-enlarged taper is formed at the fusion point between single mode fiber(SMF) and GMF. The capillary glass tube is sleeved outside GMF, LC is filled into the capillary glass tube, and its two ends are finally sealed to form a sensor. The experimental results show that when the length of GMF is 2.5 cm, the temperature sensitivity of the sensor can reach up to 195.3 pm/℃ in the range of 30-90℃, and it has a good stability for reuse. Thereby, it can be used in biochemical, industrial production and other temperature detection areas.

关 键 词：CAPILLARY fiber microstructure 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]