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Temperature insensitive curvature sensor based on cascading photonic crystal fiber

机译：基于级联光子晶体光纤的温度不敏感曲率传感器

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摘要

A temperature insensitive curvature sensor is proposed based on cascading photonic crystal fiber. Using the arc fusion splicing method, this sensor is fabricated by cascading together a single-mode fiber (SMF), a three layers air holes structure of photonic crystal fiber (3PCF), a five layers air holes structure of photonic crystal fiber (5PCF) and a SMF in turn. So the structure SMF-3PCF-5PCF-SMF can be obtained with a total length of 20 mm. During the process of fabrication, the splicing machine parameters and the length of each optical fiber are adjusted to obtain a high sensitivity curvature sensor. The experimental results show that the curvature sensitivity is -8.40 nm/m(-1) in the curvature variation range of 0-1.09 m(-1), which also show good linearity. In the range of 30-90 degrees C, the temperature sensitivity is only about 3.24 pm/degrees C, indicating that the sensor is not sensitive to temperature. The sensor not only has the advantages of easy fabricating, simple structure, high sensitivity but also can solve the problem of temperature measurement cross sensitivity, so it can be used for different areas including aerospace, large-scale bridge, architectural structure health monitoring and so on.
机译：提出了一种基于级联光子晶体光纤的温度不敏感曲率传感器。使用电弧熔接方法，通过将单模光纤（SMF），光子晶体光纤（3PCF）的三层气孔结构，光子晶体光纤（5PCF）的五层气孔结构级联在一起来制造此传感器。依次是SMF。因此可以得到总长度为20 mm的结构SMF-3PCF-5PCF-SMF。在制造过程中，调整拼接机参数和每根光纤的长度，以获得高灵敏度的曲率传感器。实验结果表明，在0-1.09 m（-1）的曲率变化范围内，曲率灵敏度为-8.40 nm / m（-1），也具有良好的线性度。在30-90摄氏度的范围内，温度灵敏度仅约为3.24 pm /摄氏度，表明传感器对温度不敏感。该传感器不仅具有制造容易，结构简单，灵敏度高的优点，而且可以解决温度测量交叉灵敏度的问题，因此可以用于航天，大型桥梁，建筑结构健康监测等不同领域。上。

著录项

  • 来源
    《Optical fiber technology》 |2018年第3期|64-68|共5页
  • 作者

    Fu Guangwei; Li Yunpu; Fu Xinghu; Jin Wa; Bi Weihong;

  • 作者单位

    Yanshan Univ, Sch Informat Sci & Engn, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Qinhuangdao 066004, Hebei, Peoples R China;

    Yanshan Univ, Sch Informat Sci & Engn, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Qinhuangdao 066004, Hebei, Peoples R China;

    Yanshan Univ, Sch Informat Sci & Engn, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Qinhuangdao 066004, Hebei, Peoples R China;

    Yanshan Univ, Sch Informat Sci & Engn, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Qinhuangdao 066004, Hebei, Peoples R China;

    Yanshan Univ, Sch Informat Sci & Engn, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Qinhuangdao 066004, Hebei, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fiber optics; Cascading; Photonic crystal fiber; Temperature insensitive; Curvature;

    机译：光纤;级联;光子晶体光纤;温度不敏感;曲率;

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