基于纯二氧化硅芯纤维和无芯纤维的应变和温度同时测量

IF 1.1 4区物理与天体物理 Q4 NANOSCIENCE & NANOTECHNOLOGY

Journal of Nanophotonics Pub Date : 2022-07-01 DOI:10.1117/1.JNP.16.036003

Fanyong Meng, Wen Luo, Chunxiang Hu, Zhanwu Liu, Yu Pang, Hengyu Liu

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引用次数: 0

摘要

摘要我们提出并演示了一种基于无芯光纤（NCF）和纯二氧化硅芯光纤（PSCF）的全光纤传感器，用于同时测量应变和温度。用作分束器和组合器的两段NCF嵌入PSCF的两端，PSCF构成了易受应变和温度影响的马赫-曾德尔干涉仪（MZI）。随着应变和温度的变化，透射光谱的倾斜波长发生偏移，利用灵敏度系数矩阵实现了应变和温度同时测量。实验结果表明，应变的灵敏度为-0.6 − 0.9 下午 / με在0到1000之间 με，在20°C至80°C的温度范围内的灵敏度分别为16.9pm/°C和11.7pm/°C。此外，该光纤传感器具有制造简单、结构紧凑、成本低、全光纤配置等优点，在风力发电领域的叶片载荷和损伤监测方面具有潜在的应用前景。

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Simultaneous measurement of strain and temperature based on pure-silica-core fiber and no-core fiber

Abstract. We propose and demonstrate an all-fiber sensor for simultaneous measurement of strain and temperature that is based on a no-core fiber (NCF) and pure-silica-core fiber (PSCF). Two segments of NCF used as a beam splitter and combiner were embedded on the two ends of the PSCF, which constitutes a Mach–Zehnder interferometer (MZI) susceptible to the strain and temperature. With the change of strain and temperature, the dip wavelengths of transmission spectrum shifted, and simultaneous measurement of strain and temperature was realized by means of a sensitivity coefficient matrix. The experimental results showed that the sensitivity of strain was −0.6 and − 0.9 pm / με in the range from 0 to 1000 με, and the sensitivity of temperature ranging from 20°C to 80°C was 16.9 pm/°C and 11.7 pm/°C, respectively. Furthermore, the fiber sensor processed the advantages of easy-fabrication, compactness, low cost, and all-fiber configuration, and it has potential applications in blade load and damage monitoring in the field of wind power generation.

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来源期刊

Journal of Nanophotonics 工程技术-光学

CiteScore

2.60

自引率

6.70%

发文量

审稿时长

3 months

期刊介绍： The Journal of Nanophotonics publishes peer-reviewed papers focusing on the fabrication and application of nanostructures that facilitate the generation, propagation, manipulation, and detection of light from the infrared to the ultraviolet regimes.